SUNSET PARK SPECIFCATIONS - West Linn, Oregon › sites › default › ...SECTION 081113 – HOLLOW METAL DOORS AND frames SECTION 087100 – DOOR HARDWARE ... Repair surface defects

The City of West Linn SUNSET PARK RENOVATIONS Parks & Recreation Dept OCTOBER 3RD, 2018

SUNSET PARK RENOVATIONS

PROJECT SPECIFICATION

PREPARED BY:

TERRAFORMA ARCHITECTURE

TABLE OF CONTENTS ! 1


TECHNICAL SPECIFICATIONS

TABLE OF CONTENTS

DIVISION 3 - CONCRETE

SECTION 033000 - CAST-IN-PLACE CONCRETE

DIVISION 4 - MASONRY

section 042000 – UNIT MASONRY

DIVISION 5 - METALS

SECTION 051200 – STRUCTURAL STEEL FRAMING

DIVISION 6 – WOOD AND PLASTIC`

SECTION 061000 – ROUGH carpentry

SECTION 061600 – SHEATHING

SECTION 061800 – GLUED-LAMINATED CONSTRUCTION

SECTION 064013 – EXTERIOR ARCHITECTURAL WOODWORK

DIVISION 7- THERMAL AND MOISTURE PROTECTION

SECTION 074113 – METAL ROOF PANELS

SECTION 076200 – SHEET METAL FLASHING AND trimmed

DIVISION 8- DOORS AND WINDOWS

SECTION 081113 – HOLLOW METAL DOORS AND frames

SECTION 087100 – DOOR HARDWARE

DIVISION 9- FINISHES

SECTION 099100 – PAINTING

SECTION 099600 – HIGH PERFORMANCE COATINGS

DIVISION 10- SPECIALTIES

SECTION 102113 – TOILET COMPARTMENTS

SECTION 102800 – TOILET ACCESSORIES

END OF TABLE OF CONTENTS



SECTION 033000 - CAST-IN-PLACE CONCRETE

1. General

2. SECTION REQUIREMENTS

A. Submittals: Concrete mix design

B. Ready-Mixed Concrete Producer Qualifications: ASTM C 94/C 94M.

C. Comply with ACI 301, "Specification for Structural Concrete"; ACI 117, "Specifications for Tolerances for Concrete Construction and Materials"; and CRSI's "Manual of Standard Practice."

2.PRODUCTS

1. MATERIALS

A. Reinforcing Bars: See Structural drawings S1.1

B. Portland Cement: ASTM C 150, Type I or II.

C. Fly Ash: ASTM C 618, Type C or F.

D. Aggregates: ASTM C 33, uniformly graded.

1. Maximum Aggregate Size for Concrete in Insulating Concrete Forms: 3/4 inch

E. Vapor Retarder: Reinforced sheet, ASTM E 1745, Class A.

F. Moisture-Retaining Cover: ASTM C 171, polyethylene film or white burlap-polyethylene sheet.

G. Clear, Waterborne, Membrane-Forming Curing Compound: ASTM C 309, Type 1, Class B.

2. MIXES

A. Comply with ACI 301 requirements for concrete mixtures.

B. Normal-Weight Concrete: Prepare design mixes, proportioned according to ACI 301, as shown on Structural drawings sheet S1.1 1. ent by weight.

C. Measure, batch, mix, and deliver concrete according to ASTM C 94/C 94M

1. When air temperature is above 90 deg F (32 deg C), reduce mixing and delivery time to 60 minutes.



3.EXECUTION

1. CONCRETING

A. Construct formwork according to ACI 301 and maintain tolerances and surface irregularities within ACI 347R limits of Class A, 1/8 inch (3.2 mm) for concrete exposed to view and Class C, 1/2 inch (13 mm) for other concrete surfaces.

B. Place vapor retarder on prepared subgrade, with joints lapped 6 inches (150 mm) and sealed.

C. Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting reinforcement.

D. Install construction, isolation, and contraction joints where indicated. Install full-depth joint-filler strips at isolation joints.

E. Place concrete in a continuous operation and consolidate using mechanical vibrating equipment.

F. Protect concrete from physical damage, premature drying, and reduced strength due to hot or cold weather during mixing, placing, and curing.

G. Formed Surface Finish: Smooth-formed finish for concrete exposed to view, coated, or covered by waterproofing or other direct-applied material; rough-formed finish elsewhere.

H. Slab Finishes: Comply with ACI 302.1R for screeding, restraightening, and finishing operations for concrete surfaces. Do not wet concrete surfaces. Provide the following finishes:

1. Scratch finish for surfaces to receive mortar setting beds. 2. Nonslip-broom finish to slabs.

I. Cure formed surfaces by moist curing for at least seven days.

J. Begin curing concrete slabs after finishing. Apply membrane-forming curing and sealing compound to concrete.

K. Owner will engage a testing agency to perform field tests and to submit test reports.

L. Protect concrete from damage. Repair surface defects in formed concrete and slabs.

END OF SECTION 033000



SECTION 042000 - UNIT MASONRY

1. GENERAL


A. Submittals:

1. Samples for decorative concrete masonry units and mortar. 2. Material Certificates: For each type of product indicated. Include statements of material

properties indicating compliance with requirements.

B. Comply with ACI 530.1/ASCE 6/TMS 602.

C. Testing and Inspecting: Owner will engage special inspectors to perform tests and inspections required by authorities having jurisdiction.

1. Inspections: Level 1 special inspections according to the IBC. 2. Place grout only after inspectors have verified compliance of grout spaces and of grades,

sizes, and locations of reinforcement.

4.PRODUCTS

1. MASONRY UNITS

A. Concrete Masonry Units: ASTM C 90; Density Classification, Lightweight

B. Concrete masonry units exposed to the exterior.

1. Integral Water Repellent: Grace Construction Products, W. R. Grace & Co. - Conn.; Dry-Block.

2. Special shapes for lintels, corners, jambs, sash, control joints, and other special conditions.

3. Square-edged units for outside corners unless otherwise indicated.

C. Decorative Concrete Masonry Units: ASTM C 90; Density Classification, Lightweight

1. Finish: All faces exposed to exterior with ground-face finish. 2. Integral Water Repellent: W. R. Grace & Co. - Conn.; Dry-Block. 3. Special shapes for lintels, corners, jambs, sash, control joints, and other special

conditions.

2. MORTAR AND GROUT

A. Mortar: ASTM C 270, proportion specification.

1. Use masonry cement mortar. Submit color options for selection by architect. 2. Do not use calcium chloride in mortar.



3. For exterior, above-grade, load-bearing and non-load-bearing walls and parapet walls; for interior load-bearing walls; for interior non-load-bearing partitions, and for other applications where another type is not indicated, use Type N.

4. Water-Repellent Additive: For mortar used with concrete masonry units made with integral water repellent, use product recommended by manufacturer of units.

B. Grout: ASTM C 476 with a slump of 8 to 11 inches (200 to 280 mm).

3. REINFORCEMENT, TIES, AND ANCHORS

A. See Structural drawings.

4. EMBEDDED FLASHING MATERIALS

A. Sheet Metal Flashing: Stainless steel, 0.0156 inch (0.4 mm) thick

5. MISCELLANEOUS MASONRY ACCESSORIES

A. Compressible Filler: Premolded strips complying with ASTM D 1056, Grade 2A1.

B. Preformed Control-Joint Gaskets: Designed to fit standard sash block and to maintain lateral stability in masonry wall; made from styrene-butadiene rubber or PVC.

C. Loose-Granular Perlite Insulation: ASTM C 549, Type II or IV.

5.EXECUTION

1. INSTALLATION, GENERAL

A. Cut masonry units with saw. Install with cut surfaces and, where possible, cut edges concealed.

B. Mix units for exposed unit masonry from several pallets or cubes as they are placed to produce uniform blend of colors and textures.

C. Matching Existing Masonry: Match coursing, bonding, color, and texture of existing masonry.

D. Stopping and Resuming Work: Rack back units; do not tooth.

E. Build non-load-bearing interior partitions full height and install compressible filler in joint between top of partition and underside of structure above.

F. Tool exposed joints slightly concave when thumbprint hard unless otherwise indicated.

G. Keep cavities clean of mortar droppings and other materials during construction.

2. PARGING

A. Parge masonry walls, where indicated, in two uniform coats with a steel-trowel finish. Form a wash at top of parging and a cove at bottom. Damp cure parging for at least 24 hours.



3. CLEANING

A. Clean masonry as work progresses. Remove mortar fins and smears before tooling joints.

B. Final Cleaning: After mortar is thoroughly cured, clean exposed masonry.

1. Wet wall surfaces with water before applying acidic cleaner, then remove cleaner promptly by rinsing thoroughly with clear water.

2. Clean masonry with a proprietary acidic cleaner applied according to manufacturer's written instructions.




SECTION 051200 - STRUCTURAL STEEL FRAMING

1. GENERAL


A. Submittals: Shop Drawings.

B. Comply with applicable provisions of the following:

1. AISC 303. 2. AISC 341 and AISC 341s1. 3. AISC 360. 4. RCSC's "Specification for Structural Joints Using ASTM A 325 or A 490 Bolts."

2.PRODUCTS

1. STRUCTURAL STEEL

A. Channels, Angles-Shapes: ASTM A 36/A 36M, Grade 50 (345).

B. Plate and Bar: ASTM A 36/A 36M, Grade 50 (345).

2. ACCESSORIES

A. High-Strength Bolts, Nuts, and Washers: ASTM A 325, Type 1, heavy-hex steel structural bolts; ASTM A 563, Grade C, heavy-hex carbon-steel nuts; and ASTM F 436 , Type 1, hardened carbon-steel washers.

B. Anchor Rods: ASTM F 1554, Grade 36.

1. Configuration: Hooked. 2. Nuts: ASTM A 563 hex carbon steel. 3. Plate Washers: ASTM A 36/A 36M carbon steel. 4. Washers: ASTM F 436 , Type 1, hardened carbon steel.

C. Primer: Fabricator's standard lead- and chromate-free, non-asphaltic, rust-inhibiting primer.

D. Grout: ASTM C 1107, nonmetallic, shrinkage resistant, factory packaged.

3. FABRICATION

A. Structural Steel: Fabricate and assemble in shop to greatest extent possible. Fabricate according to AISC's "Code of Standard Practice for Steel Buildings and Bridges" and AISC 360.



B. Weld Connections: Comply with AWS D1.1/D1.1M and AWS D1.8/D1.8M for tolerances, appearances, welding procedure specifications, weld quality, and methods used in correcting welding work.

C. Shop Priming: Prepare surfaces according to SSPC-SP 2, "Hand Tool Cleaning"; or SSPC-SP 3, "Power Tool Cleaning." Shop prime steel to a dry film thickness of at least 1.5 mils (0.038 mm). Do not prime surfaces to be embedded in concrete or mortar or to be field welded.

3.EXECUTION

1. ERECTION

A. Set structural steel accurately in locations and to elevations indicated and according to AISC 303 and AISC 360.

B. Base Bearing and Leveling Plates: Clean concrete- and masonry-bearing surfaces of bond-reducing materials, and roughen surfaces prior to setting plates. Clean bottom surface of plates.

1. Set plates for structural members on wedges, shims, or setting nuts as required. 2. Weld plate washers to top of base plate. 3. Snug-tighten anchor rods after supported members have been positioned and plumbed.

Do not remove wedges or shims but, if protruding, cut off flush with edge of plate before packing with grout.

4. Promptly pack grout solidly between bearing surfaces and plates so no voids remain. Neatly finish exposed surfaces; protect grout and allow to cure.

C. Align and adjust various members forming part of complete frame or structure before permanently fastening. Before assembly, clean bearing surfaces and other surfaces that will be in permanent contact with members. Perform necessary adjustments to compensate for discrepancies in elevations and alignment.

D. Do not use thermal cutting during erection [unless approved by Architect. Finish thermally cut sections within smoothness limits in AWS D1.1/D1.1M].

E. High-Strength Bolts: Install high-strength bolts according to RCSC's "Specification for Structural Joints Using ASTM A 325 or A 490 Bolts" for type of bolt and type of joint specified.

1. Joint Type: Snug tightened.

F. Weld Connections: Comply with AWS D1.1/D1.1M for tolerances, appearances, welding procedure specifications, weld quality, and methods used in correcting welding work.

G. END OF SECTION 051200



SECTION 061000 - ROUGH CARPENTRY

1.GENERAL


A. Submittals: See Structural drawings

2.PRODUCTS

1. WOOD PRODUCTS, GENERAL

A. Lumber: Provide dressed lumber, S4S, marked with grade stamp of inspection agency.

B. Engineered Wood Products: Acceptable to authorities having jurisdiction and for which current model code research or evaluation reports exist that show compliance with building code in effect for Project.

2. TREATED MATERIALS

A. Preservative-Treated Materials: AWPA C2, except that lumber not in ground contact and not exposed to the weather may be treated according to AWPA C31 with inorganic boron (SBX).

1. Use treatment containing no arsenic or chromium. 2. Kiln-dry lumber after treatment to a maximum moisture content of 19 percent. 3. Mark lumber with treatment quality mark of an inspection agency approved by the ALSC

Board of Review.

B. Provide preservative-treated materials for:

1. Wood members in connection with roofing, flashing, vapor barriers, and waterproofing. 2. Concealed members in contact with masonry or concrete. 3. Wood framing members that are less than 18 inches (460 mm) above the ground. 4. Wood floor plates that are installed over concrete slabs-on-grade.

3. LUMBER

A. Dimension Lumber:

1. Maximum Moisture Content: 15 percent for 2-inch nominal (38-mm actual) thickness or less, 19 percent for more than 2-inch nominal (38-mm actual) thickness.

B. Miscellaneous Lumber: Standard, Stud, or No. 3 grade with 19 percent maximum moisture content of any species. Provide for nailers, blocking, and similar members.



4. ENGINEERED WOOD PRODUCTS

A. Engineered wood products with allowable design stresses, as published by manufacturer, that meet or exceed those indicated. Manufacturer's published values shall be demonstrated by comprehensive testing.

B. Laminated-Veneer Lumber: Manufactured with exterior-type adhesive complying with ASTM D 2559. Allowable design values determined according to ASTM D 5456.

1. Extreme Fiber Stress in Bending, Edgewise: See structural drawings 2. Modulus of Elasticity, Edgewise: See structural drawings

5. MISCELLANEOUS PRODUCTS

A. Fasteners: Size and type indicated. Where rough carpentry is exposed to weather, in ground contact, or in area of high relative humidity, provide fasteners with hot-dip zinc coating complying with ASTM A 153/A 153M.

1. Power-Driven Fasteners: CABO NER-272. 2. Bolts: Steel bolts complying with ASTM A 307, Grade A (ASTM F 568, Property

Class 4.6); with ASTM A 563 (ASTM A 563M) hex nuts and, where indicated, flat washers.

B. Metal Framing Anchors: Structural capacity, type, and size indicated.

1. Use anchors made from hot-dip galvanized steel complying with ASTM A 653/A 653M, (Z180) coating designation for interior locations where stainless steel is not indicated.

2. Use anchors made from stainless steel complying with ASTM A 666, Type 304 for exterior locations and where indicated.

C. Sill Sealer: Glass-fiber insulation, 1 inch (25 mm) thick, compressible to 1/32 inch (0.8 mm)

3.EXECUTION

1. INSTALLATION

A. Set rough carpentry to required levels and lines, with members plumb, true to line, cut, and fitted. Locate nailers, blocking, and similar supports to comply with requirements for attaching other construction.

B. Securely attach rough carpentry to substrates, complying with the following:

1. CABO NER-272 for power-driven fasteners. 2. Published requirements of metal framing anchor manufacturer.




SECTION 061600 - SHEATHING

1.GENERAL


A. Submittals: See Structural drawings. S1.1

2.PRODUCTS

1. ROOF SHEATHING

A. Plywood Roof Sheathing: See Structural drawings.

2. MISCELLANEOUS PRODUCTS

A. Fasteners: Size and type indicated.

1. For roof and wall sheathing, provide fasteners of Type 304 stainless steel.

B. Adhesives for Field Gluing Panels to Framing: APA AFG-01.

3.EXECUTION

1. INSTALLATION

A. Fastening Methods:

1. Wall and Roof Sheathing:

a. Nail to wood framing. b. Screw to cold-formed metal framing.




SECTION 061800 - GLUED-LAMINATED CONSTRUCTION

1.GENERAL


A. See Structural drawings

B. Submittals: Manf. Location, finish, quality.

1. Include structural analysis data signed and sealed by the qualified professional engineer responsible for their preparation.

C. Standards: Comply with ANSI/AITC A 190.1, "Structural Glued Laminated Timber." Factory mark with AITC Quality Mark or APA-EWS trademark on surfaces that will not be exposed in the completed Work.

D. Comply with AITC 111, "Recommended Practice for Protection of Structural Glued Laminated Timber during Transit, Storage, and Erection."

2.PRODUCTS

1. STRUCTURAL GLUED-LAMINATED UNITS

A. Structural Performance: Provide structural glulam timber capable of withstanding design loads indicated according to AITC 117 or as determined according to ASTM D 3737.

B. Forest Certification: Provide structural glued-laminated timber produced from wood obtained from forests certified by an FSC-accredited certification body to comply with FSC STD-01-001, "FSC Principles and Criteria for Forest Stewardship."

C. Species: Douglas fir

D. Appearance: Industrial grade.

E. Adhesive: Wet-use adhesive complying with AITC A190.1.

F. End-Cut Sealing: After end cutting each member to final length, apply a saturation coat of end sealer to ends and other cross-cut surfaces.

G. Seal Coat: After fabricating and sanding each unit, and end-coat sealing, apply a heavy saturation coat of penetrating sealer on surfaces of each unit.

H. Wiped Stain Finish: Manufacturer's standard, dry-appearance, penetrating acrylic stain and sealer; oven dried and resistant to mildew and fungus.



I. Clear Finish: Manufacturer's standard, two-coat, clear varnish finish; resistant to mildew and fungus.

2. CONNECTORS

A. See Structural drawings.

B. General: Fabricate from structural steel complying with ASTM A 36/A 36M; steel bars complying with ASTM A 575, Grade M 1020; and steel sheet complying with ASTM A 1011/A 1011M, Structural Steel, Type SS, Grade 33. Finish with rust-inhibitive primer.

3.EXECUTION

1. INSTALLATION

A. Install structural glued-laminated timber for a close fit and neat appearance of joints. Carefully trim ends to fit connectors, mark and drill for bolts, and seal cuts with end sealer.

B. Handle and temporarily support members to prevent visible surface damage. When hoisting members into place, use padded slings, and protect corners with wood blocking.

C. Brace members as they are placed to maintain safe condition until full stability is provided.




SECTION 064013 - EXTERIOR ARCHITECTURAL WOODWORK

1. GENERAL


A. Submittals: Ipe slat sample.

B. Quality Standard: Architectural Woodwork Institute's "Architectural Woodwork Quality Standards."

C. Forest Certification: Provide woodwork produced from wood obtained from forests certified by an FSC-accredited certification body to comply with FSC STD-01-001, "FSC Principles and Criteria for Forest Stewardship."

4.PRODUCTS

1. MATERIALS

A. Preservative Treatment: Comply with WDMA I.S.4 for items indicated to receive water-repellent preservative treatment.

B. Fasteners for Exterior Woodwork:

1. Nails: stainless steel. 2. Screws: stainless steel.

2. EXTERIOR WOODWORK

A. Wood Moisture Content: 10 to 15 percent.

B. Backout or groove backs of flat trim members and kerf backs of other wide, flat members, except for members with ends exposed in finished work.

C. Exterior Standing and Running Trim: Premium grade, made from western red cedar.

D. Exterior Ornamental Work: Premium grade, made from Ipe.

E. Shop prime woodwork for opaque finish with one coat of specified wood primer.

F. Shop seal woodwork for transparent finish with stain (if required), other required pretreatments, and first coat of specified finish.

G. Backprime with one coat of sealer or primer, compatible with finish coats. Apply two coats to surfaces installed in contact with concrete or masonry and to end-grain surfaces.



5.EXECUTION

1. INSTALLATION

A. Install woodwork to comply with referenced quality standard for grade specified.

B. Install woodwork true and straight with no distortions. Shim as required with concealed shims. Install level and plumb to a tolerance of 1/8 inch in 96 inches.

C. Scribe and cut woodwork to fit adjoining work, and refinish cut surfaces or repair damaged finish at cuts.

D. Anchor woodwork to anchors or blocking built in or directly attached to substrates. Fasten with countersunk concealed fasteners and blind nailing. Use fine finishing nails for exposed nailing, countersunk and filled flush with woodwork.

E. Standing and Running Trim: Install with minimum number of joints possible, using full-length pieces (from maximum length of lumber available) to greatest extent possible. Do not use pieces less than 36 inches long, except where shorter single-length pieces are necessary. Scarf running joints and stagger in adjacent and related members.




SECTION 074113 - METAL ROOF PANELS

A. GENERAL


A. Summary: Factory-formed metal roof panels, fasciae, trim, and accessories.

B. Submittals: Product Data and color Samples.

C. Warranties: Provide manufacturer's standard written warranty, without monetary limitation, signed by manufacturer agreeing to promptly repair or replace metal roof panels that fail to remain weathertight within 20 years from date of Substantial Completion.

6.PRODUCTS

1. METAL ROOF PANELS

A. Products:

1. Taylor Metal Products Inc. Easy Lock Standing Seam, or approved

B. Wind-Uplift Resistance of Roof Assemblies: UL 580, Class 90.

C. Roof Panel Type: Standing seam metal roof panels.

D. Kynar Painted Steel Roof Panels: Fabricated from galvanized structural-steel sheet, ASTM A 653-94, G90.

1. Nominal Metal Thickness: .24 gauge 2. Finish: Manufacturer's standard Kynar paint finish, two coat, 1 mil thickness, 30 year

paint warranty against fading, chalking, chipping, cracking, and peeling.

2. ACCESSORIES

A. Provide components required for a complete roof panel assembly including trim, fasciae, clips, seam covers, flashings, sealants, gaskets, fillers, closure strips, and similar items.

B. Flashing and Trim: Formed from 24 gauge nominal thickness, G-90 galvanized steel sheet. Provide flashing and trim as required to seal against weather and to provide finished appearance. Finish flashing and trim with same finish system as adjacent metal roof panels.

C. Self-Adhering Sheet Underlayment, High Temperature: Butyl or SBS-modified asphalt; slip-resisting-polyethylene surfaced; with release paper backing; cold applied. Stable after testing at 240 deg F and passes after testing at minus 20 deg F; ASTM D 1970.

D. Felt Underlayment: ASTM D 226, Type II (No. 30), asphalt-saturated organic felts.



E. Slip Sheet: Manufacturer's recommended slip sheet, of type required for application.

F. Bituminous Coating: Cold-applied asphalt mastic, SSPC-Paint 12, compounded for 15-mil (0.4-mm) dry film thickness per coat.

7.EXECUTION

1. INSTALLATION

A. Apply self-adhering sheet underlayment at eaves and rakes from edges of roof to at least 24 inches inside exterior wall line.

B. Install felt underlayment on roof deck not covered by self-adhering sheet underlayment.

C. Apply slip sheet over underlayment before installing metal roof panels.

D. Install flashings to cover underlayment to comply with requirements specified in Division 07 Section "Sheet Metal Flashing and Trim."

E. Rigidly fasten metal roof panels to structure at one and only one location for each panel. Allow remainder of panel to move freely for thermal expansion and contraction. Predrill panels for fasteners.

1. Steel Roof Panels: Use stainless-steel fasteners for surfaces exposed to the exterior and galvanized-steel fasteners for surfaces exposed to the interior.

2. Aluminum Roof Panels: Use aluminum or stainless-steel fasteners for surfaces exposed to the exterior and aluminum or galvanized-steel fasteners for surfaces exposed to the interior.

3. Provide metal closures at rake edge and each side of ridge caps. 4. Flash and seal metal roof panels with weather closures at eaves, rakes, and perimeter of

all openings. 5. Install ridge caps as metal roof panel work proceeds.

F. Install gaskets, joint fillers, and sealants where required for weatherproof performance of metal roof panel assemblies. Provide types of gaskets, fillers, and sealants recommended by metal roof panel manufacturer.

G. Separate dissimilar metals with a bituminous coating or self-adhering sheet underlayment.

H. Coat back side of aluminum panels with bituminous coating where they will contact wood, ferrous metal, or cementitious construction.




1. GENERAL


A. Submittals: Product Data

B. Comply with SMACNA's "Architectural Sheet Metal Manual." Conform to dimensions and profiles shown unless more stringent requirements are indicated.

C. Coordinate installation of sheet metal flashing and trim with interfacing and adjoining construction to provide a leak proof, secure, and noncorrosive installation.

2.PRODUCTS

1. SHEET METAL

A. Aluminum Sheet: ASTM B 209 (ASTM B 209M), alloy as standard with manufacturer for finish required, not less than 0.032 inch (0.8 mm) thick; and with mill finish.] 1. Concealed Finish: Manufacturer's standard white or light-colored acrylic or polyester

backer finish.

B. Zinc-Tin Alloy-Coated Stainless Steel: ASTM A 240/A 240M, Type 304, fully annealed stainless-steel sheet, not less than 0.015 inch (0.38 mm) thick, with 0.787-mil (0.020-mm) thickness zinc-tin alloy coating applied to each side.

C. Metallic-Coated Steel Sheet: Galvanized structural-steel sheet, ASTM A 653/A 653M, G90 (Z275), or aluminum-zinc alloy-coated structural-steel sheet, ASTM A 792/A 792M, Class AZ50 coating designation, Grade 40 (Class AZM150 coating designation, Grade 275);

1. Finish: Manufacturer's standard [two-coat fluoropolymer system with color coat containing not less than 70 percent PVDF resin by weight] [three-coat fluoropolymer system with color coat and clear coat containing not less than 70 percent PVDF resin by weight] [epoxy primer and silicone-modified, polyester-enamel topcoat].

2. Concealed Finish: Manufacturer's standard white or light-colored acrylic or polyester backer finish.

2. ACCESSORIES

A. Felt Underlayment: ASTM D 226, [Type I (No. 15)], asphalt-saturated organic felts.

B. Self-Adhering Sheet Underlayment, High Temperature: Butyl or SBS-modified asphalt; slip-resisting-polyethylene surfaced; with release paper backing; cold applied. Stable after testing at 240 deg F (116 deg C) and passes after testing at minus 20 deg F (29 deg C); ASTM D 1970.

C. Fasteners: Wood screws, annular-threaded nails, self-tapping screws, self-locking rivets and bolts, and other suitable fasteners.



1. Exposed Fasteners: Heads matching color of sheet metal roofing using plastic caps or factory-applied coating.

2. Spikes and Ferrules: Same material as gutter; with spike with ferrule matching internal gutter width.

3. Fasteners for Aluminum Sheet: Aluminum or Series 300 stainless steel. 4. Fasteners for Stainless-Steel Sheet: Series 300 stainless steel. 5. Fasteners for Zinc-Tin Alloy-Coated Stainless-Steel Sheet: Series 300 stainless steel.

D. Solder for Zinc-Tin Alloy-Coated Stainless Steel: ASTM B 32, 100 percent tin.

3. FABRICATION

A. Fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to the design, dimensions, metal, and other characteristics of the item indicated.

B. Fabrication Tolerances: Fabricate sheet metal flashing and trim that is capable of installation to tolerances specified in MCA's "Guide Specification for Residential Metal Roofing."

3.EXECUTION

1. INSTALLATION

A. Comply with SMACNA's "Architectural Sheet Metal Manual." Allow for thermal expansion; set true to line and level. Install Work with laps, joints, and seams permanently watertight and weatherproof; conceal fasteners where possible.

B. Sealed Joints: Form non-expansion, but movable, joints in metal to accommodate elastomeric sealant to comply with SMACNA standards.

C. Fabricate nonmoving seams in sheet metal with flat-lock seams. [ For aluminum, form seams and seal with epoxy seam sealer. Rivet joints for additional strength.]

D. Aluminum Flashing and Trim: Coat back side of aluminum flashing and trim with bituminous coating where it will contact wood, ferrous metal, or cementitious construction.

E. Separate dissimilar metals with a bituminous coating or polymer-modified, bituminous sheet underlayment.


SECTION 081113 - HOLLOW METAL DOORS AND FRAMES



1.GENERAL


A. Submittals: Product Data and Shop Drawings.

2.PRODUCTS

1. MATERIALS

A. Cold-Rolled Steel Sheets: ASTM A 1008/A 1008M, suitable for exposed applications.

B. Hot-Rolled Steel Sheets: ASTM A 1011/A 1011M, free of scale, pitting, or surface defects.

C. Metallic-Coated Steel Sheet: ASTM A 653/A 653M, A60 (ZF180).

D. Frame Anchors: ASTM A 591/A 591M, 40Z (12G) coating designation; mill phosphatized.

1. For anchors built into exterior walls, sheet steel complying with ASTM A 1008/A 1008M or ASTM A 1011/A 1011M, hot-dip galvanized according to ASTM A 153/A 153M, Class B.

E. Inserts, Bolts, and Fasteners: Hot-dip galvanized according to ASTM A 153/A 153M.

2. HOLLOW METAL DOORS AND FRAMES

A. Products:

1. Amweld, Ceco, Curries, Fenestra, Republic, Steelcraft, or approved.

B. Doors: Complying with ANSI 250.8 for level and model and ANSI A250.4 for physical-endurance level indicated, 1-3/4 inches (44 mm) thick unless otherwise indicated.

1. Exterior Doors: Level 2 and Physical Performance Level B (Heavy Duty) Model 1 (Full Flush), metallic-coated steel sheet faces.

2. Hardware Reinforcement: Fabricate according to ANSI/SDI A250.6 with reinforcement plates from same material as door face sheets.

C. Frames: ANSI A250.8; conceal fastenings unless otherwise indicated.

1. Steel Sheet Thickness for Interior Doors: 0.042 inch (1.0 mm). 2. Steel Sheet Thickness for Exterior Doors: 0.053 inch (1.3 mm). 3. Fabricate exterior frames from metallic-coated steel sheet, with mitered or coped and

continuously welded corners. 4. Hardware Reinforcement: Fabricate according to ANSI/SDI A250.6 with reinforcement

plates from same material as frames. 5. Frame Anchors: Not less than 0.042 inch (1.0 mm) thick.



D. Prepare doors and frames to receive mortised and concealed hardware according to ANSI A250.6 and ANSI A115 Series standards.

E. Reinforce doors and frames to receive surface-applied hardware.

F. Prime Finish: Manufacturer's standard, factory-applied coat of lead- and chromate-free primer complying with ANSI/SDI A250.10 acceptance criteria.

3.EXECUTION

1. INSTALLATION

A. Install hollow metal frames to comply with ANSI/SDI A250.11.

B. Install doors to provide clearances between doors and frames as indicated in ANSI/SDI A250.11.

C. Prime-Coat Touchup: Immediately after erection, sand smooth rusted or damaged areas of prime coat and apply touchup of compatible air-drying rust-inhibitive primer.

D. END OF SECTION 081113



1. Hinges. 2. Bored entry handleset (F108). 3. Bored auxiliary deadlock, key outside, thumbturn inside. 4. Threshold and weather stripping.




SECTION 087100 - DOOR HARDWARE

1.GENERAL


A. Submittals: Manf. Hardware schedule.

B. Deliver keys to Owner.

2.PRODUCTS

1. HARDWARE

A. Manufacturers:

1. Schlage C series or approved

B. Hinges:

1. Stainless-steel hinges with stainless-steel pins for exterior. 2. Nonremovable hinge pins for exterior and public interior exposure. 3. 3 hinges for 1-3/4-inch- (45-mm-) thick doors 90 inches (2300 mm) or less in height;

C. Locksets and Latchsets:

1. BHMA A156.2, Series 4000, Grade 1 for bored locks and latches.

D. Key locks to Owner's existing master-key system.

1. Cylinders with five -pin tumblers and removable cores.

E. Provide hardware finishes as follows:

1. Hinges: brushed stainless stl. 2. Locksets, Latchsets,: brushed stainless stl 3. Other Hardware: Matching finish of lockset/latchset.

3.EXECUTION

1. INSTALLATION

A. Mount hardware in locations recommended by the Door and Hardware Institute unless otherwise indicated.

DOOR HARDWARE 087100 - ! 1


2. HARDWARE SCHEDULE

HW SET: 01

EACH DOOR TO HAVE:

EACH TO HAVE:

OPERATION: TIME CLOCK, MOTION SENSOR, EMERGENCY PUSH BUTTON, OR LOSS OF POWER RELEASES MAGNET.


RESTROOM

QTY DESCRIPTION CATALOG NUMBER FINISH MFR

1 EA MAGNETIC LOCK M490P RTD 12/24 VDC 628 SCE

1 EA DOOR PULL 8303-8 630 IVE

1 EA PUSH 8200 4 X 16 630 IVE

1 EA PUSH BUTTON 621GREX DA 630 SCE

1 EA MOTION SENSOR SCANII WHT SCE

1 EA POWER SUPPLY PS902 900-2RS VON

DOOR HARDWARE 087100 - ! 2


SECTION 099100 - PAINTING

1.GENERAL


A. Submittals:

1. Product Data. 2. Samples.

B. Mockups: Full-coat finish Sample of each type of coating, color, and substrate, applied where directed.

C. Extra Materials: Deliver to Owner 1 gallon of each color and type of finish coat paint used on Project, in containers, properly labeled and sealed.

2.PRODUCTS

1. PAINT

A. Products:

1. Miller Paint or approved.

B. MPI Standards: Provide materials that comply with MPI standards indicated and listed in its "MPI Approved Products List."

C. Material Compatibility: Provide materials that are compatible with one another and with substrates.

1. For each coat in a paint system, provide products recommended in writing by manufacturers of topcoat for use in paint system and on substrate indicated.

D. Use paints and coatings that comply with the following limits for VOC content:

1. Flat Paints and Coatings: 50 g/L. 2. Nonflat Paints, Coatings: 150 g/L. 3. Anticorrosive and Antirust Paints Applied to Ferrous Metals: 250 g/L. 4. Clear Wood Finishes, Varnishes: 350 g/L. 5. Clear Wood Finishes, Lacquers: 550 g/L. 6. Floor Coatings: 100 g/L. 7. Shellacs, Clear: 730 g/L. 8. Shellacs, Pigmented: 550 g/L. 9. Stains: 250 g/L. 10. Primers, Sealers, and Undercoaters: 200 g/L. 11. Dry-Fog Coatings: 400 g/L. 12. Zinc-Rich Industrial Maintenance Primers: 340 g/L. 13. Pretreatment Wash Primers: 420 g/L.



E. Colors: As scheduled, see drawings.

3.EXECUTION

1. PREPARATION

A. Comply with recommendations in MPI's "MPI Architectural Painting Specification Manual" applicable to substrates indicated.

B. Remove hardware, lighting fixtures, and similar items that are not to be painted. Mask items that cannot be removed. Reinstall items in each area after painting is complete.

C. Clean and prepare surfaces in an area before beginning painting in that area. Schedule painting so cleaning operations will not damage newly painted surfaces.

2. APPLICATION


B. Paint exposed surfaces unless otherwise indicated.

1. Paint surfaces behind movable equipment and furniture same as similar exposed surfaces. 2. Paint surfaces behind permanently fixed equipment or furniture with prime coat only. 3. Paint the back side of access panels. 4. Color-code mechanical piping in accessible ceiling spaces. 5. Do not paint prefinished items, items with an integral finish, operating parts, and labels

unless otherwise indicated.

C. Apply paints according to manufacturer's written instructions.

1. Use brushes only for exterior painting and where the use of other applicators is not practical.

2. Use rollers for finish coat on interior walls and ceilings.

D. Apply paints to produce surface films without cloudiness, spotting, holidays, laps, brush marks, roller tracking, runs, sags, ropiness, or other surface imperfections. Cut in sharp lines and color breaks.

1. If undercoats or other conditions show through topcoat, apply additional coats until cured film has a uniform paint finish, color, and appearance.

E. Apply stains and transparent finishes to produce surface films without color irregularity, cloudiness, holidays, lap marks, brush marks, runs, ropiness, or other imperfections. Use multiple coats to produce a smooth surface film of even luster.

3. PAINT APPLICATION SCHEDULE

A. Concrete Masonry Units (interior):



1. Sherwin Williams B70 Series water based catalyzed epoxy, gloss sheen, over Sherwin Williams Preprite 200 Latex primer, or approved substitute.

B. Steel: 1. Semigloss Alkyd Enamel: Two coats over rust-inhibitive primer: MPI EXT 5.1D.

C. Galvanized Metal:

1. Semigloss Alkyd Enamel: Two coats over cementitious galvanized-metal primer: MPI EXT 5.3B.

D. Dressed Lumber:

1. Semigloss Latex: two coats over primer: MPI EXT 6.3L. (fascia & rake trim) 2. Clear, Two-Component Polyurethane: Three Coats: MPI EXT 6.3G. (clear finish wood)




SECTION 099600 - HIGH-PERFORMANCE COATINGS

1.GENERAL


A. Submittals:

1. Product Data 2. Samples.

B. Mockups: Full-coat finish Sample of each type of coating, color, and substrate, applied where directed.

C. Extra Materials: Deliver to Owner 1 gallon of each color and type of finish coat used on Project, in containers, properly labeled and sealed.

2.PRODUCTS

1. HIGH-PERFORMANCE COATINGS

A. MPI Standards: Provide materials that comply with MPI standards indicated and listed in its "MPI Approved Products List."

B. Material Compatibility: Provide materials that are compatible with one another and with substrates.

1. For each coat in a system, provide products recommended in writing by manufacturers of topcoat for use in system and on substrate indicated.

C. Colors: As scheduled, see drawings.

3.EXECUTION

1. PREPARATION


B. Remove hardware, lighting fixtures, and similar items that are not to be coated. Mask items that cannot be removed. Reinstall items in each area after coating work is complete.

C. Clean and prepare surfaces in an area before beginning coating work in that area. Schedule work so cleaning operations will not damage newly coated surfaces.

1. Remove incompatible primers and reprime substrate with compatible primers as required to produce coating systems indicated.



2. APPLICATION


B. Coat exposed surfaces unless otherwise indicated.

1. Coat surfaces behind movable equipment and furniture same as similar exposed surfaces. 2. Coat surfaces behind permanently fixed equipment or furniture with prime coat only. 3. Coat the back side of access panels. 4. Do not coat prefinished items, items with an integral finish, operating parts, and labels

unless otherwise indicated.

C. Apply high-performance coatings according to manufacturer's written instructions.

1. Use brushes only where the use of other applicators is not practical.

D. Apply high-performance coatings to produce surface films without cloudiness, spotting, holidays, laps, brush marks, roller tracking, runs, sags, ropiness, or other surface imperfections. Cut in sharp lines and color breaks.

1. If undercoats or other conditions show through topcoat, apply additional coats until cured film has a uniform finish, color, and appearance.

3. COATING APPLICATION SCHEDULE

A. Concrete, Traffic Surfaces:

1. Epoxy Slip-Resistant Deck Coating System: One coat: MPI EXT 3.2C.

B. Concrete Masonry Units: 1. Gloss Epoxy Coating System: two coat(s) over epoxy block filler: MPI EXT 4.2E.




SECTION 102113 - TOILET COMPARTMENTS

1. GENERAL


A. Submittals: Product Data, Shop Drawings, and Samples.

B. Regulatory Requirements: Comply with ICC/ANSI A117.1 for toilet compartments designated as accessible.

2.PRODUCTS

1. TOILET COMPARTMENTS AND SCREENS

A. Products:

1. Bobrick, Sierra series, or approved

2. MATERIALS

A. Solid-Plastic, Polymer Resin: High-density polyethylene with homogenous color, not less than 1 inch thick, with seamless construction and eased edges.

1. Flame-Spread Index: 75 or less per ASTM E 84. 2. Color: Bobrick SC04 ‘Forest Green’

B. Brackets: Stirrup brackets

1. Material: Stainless steel

3. FABRICATION

A. Toilet Compartments: Wall mounted

B. Solid-Plastic, Polymer-Resin Units: Provide aluminum heat-sink strips at exposed bottom edges of panels and doors.

C. Doors: Unless otherwise indicated, 36 inch wide in-swinging doors for standard toilet compartments and 36-inch wide out-swinging doors with a minimum 32 inch wide clear opening for compartments indicated to be accessible to people with disabilities.

D. Door Hardware: Stainless steel. Provide units that comply with accessibility requirements of authorities having jurisdiction at compartments indicated to be accessible to people with disabilities.

1. Hinges: Self-closing type, adjustable to hold door open at any angle up to 90 degrees. 2. Latches and Keepers: surface mounted unit designed for emergency access and with

combination rubber-faced door strike and keeper.



3. Coat Hook: Combination hook and rubber-tipped bumper, sized to prevent door from hitting compartment-mounted accessories.

4. Door Bumper: Rubber-tipped bumpers at out-swinging doors or entrance screen doors. 5. Door Pull: Provide at out-swinging doors. Provide units on both sides of doors at

compartments indicated to be accessible to people with disabilities.

3.EXECUTION

1. INSTALLATION

A. Install units rigid, straight, level, and plumb, with not more than 1/2 inch (13 mm) between pilasters and panels and not more than 1 inch (25 mm) between panels and walls. Provide brackets, pilaster shoes, bracing, and other components required for a complete installation. Use theft-resistant exposed fasteners finished to match hardware. Use sleeve nuts for through-bolt applications.

1. Stirrup Brackets: Align brackets 2. Set hinges on in-swinging doors to hold open approximately 30 degrees from closed

position when unlatched. Set hinges on out-swinging doors and swing doors in entrance screens to return to fully closed position.




SECTION 102800 – TOILET ACCESSORIES

1.GENERAL


A. Submittals: Product Data, Shop Drawings

2.PRODUCTS

1. MATERIALS

A. Stainless Steel: ASTM A 666, Type 304, No. 4 finish (satin), 0.0312-inch (0.8-mm) minimum nominal thickness unless otherwise indicated.

B. Mirrors: Frameless stainless steel mirror by Bobrick or approved

C. Galvanized-Steel Mounting Devices: ASTM A 153/A 153M, hot-dip galvanized after fabrication.

D. Fasteners: Screws, bolts, and other devices of same material as accessory unit, tamper and theft resistant when exposed, and of galvanized steel when concealed.

E. Keys: Provide universal keys for internal access to accessories for servicing and resupplying. Provide minimum of six keys to Owner's representative.

2. TOILET AND BATH ACCESSORIES

A. Manufacturers:

1. Bobrick or approved

B. Toilet Tissue Dispenser

1. Type: Double roll dispenser

C. Waste Receptacle

1. Type: Free standing 2. Material and Finish: Stainless steel, No. 4 finish (satin).

D. Liquid-Soap Dispenser

1. Mounting: Deck mounted on lavatory 2. Stainless-Steel Soap Valve: Designed for dispensing soap in liquid form. 3. Lockset: Tumbler type.

E. Grab Bar



1. Material: Stainless steel, 0.050 inch (1.3 mm) thick. 2. Mounting: Concealed 3. Gripping Surfaces: Slip-resistant texture 4. Outside Diameter: 1-1/2 inches (38 mm) for heavy-duty applications.

F. Sanitary Napkin Disposal Unit

1. Mounting: Surface Mounted 2. Material: Stainless steel, No. 4 finish (satin) 3. Door or Cover: Self-closing. 4. Receptacle: Removable.

G. Mirror Unit

1. Frameless stainless steel. See drawings for size.

H. Warm-Air Dryer

1. Electronic-sensor activated. 2. Mounting: Surface. 3. Material: Stainless steel, No. 4 finish (satin)

I. Robe Hook

1. Location: one on each toilet stall door 2. Description: Double-prong unit. 3. Material and Finish: Stainless steel, No. 4 finish (satin

3.EXECUTION

1. INSTALLATION

A. Install accessories using fasteners appropriate to substrate indicated and recommended by unit manufacturer. Install units level, plumb, and firmly anchored in locations and at heights indicated.

1. Install grab bars to withstand a downward load of at least 250 lbf (1112 N), when tested according to method in ASTM F 446.

B. Adjust accessories for unencumbered, smooth operation and verify that mechanisms function properly. Replace damaged or defective items. Remove temporary labels and protective coatings.



SPECIFICATIONS

Sunset Park and Sahallie Park: City of West Linn Playscape Specifications

2/12/19

Prepared by Learning Landscapes Design Landscape Architects

4241 SW Tunnelwood St. Portland OR 97221

Sections: 116800 PLAY EQUIPMENT AND NATURAL LANDSCAPE COMPONENTS

321220 CONCRETE PAVING

321816.13 PLAYGROUND PROTECTIVE SURFAFING

329100 SITE PREPARATION

329300 WILLOW DOME PLANTING

Sunset and Sahallie Playground Renovations 1/31/19 City of West Linn

Play Equipment and Natural Landscape Components 116800 - 1

SECTION 116800 - PLAY EQUIPMENT AND NATURAL LANDSCAPE COMPONENTS

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section includes 1. Logs 2. Boulders 3. Playground equipment 4. Other supplemental components

B. Related Sections:

1. Division 32 Section "Playground Protective Surfacing" for protective surfacing under and around playground equipment.

1.3 DEFINITIONS

A. Fall Height: According to ASTM F 1487, "the vertical distance between a designated play surface and the protective surfacing beneath it."

B. IPEMA: International Play Equipment Manufacturers Association.

C. Use Zone: According to ASTM F 1487, the "area beneath and immediately adjacent to a play structure or equipment that is designated for unrestricted circulation around the equipment and on whose surface it is predicted that a user would land when falling from or exiting the equipment."

1.4 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Shop Drawings: For playground equipment and structures. Include plans, elevations, sections, details, and attachments to other work.

C. Samples for Initial Selection: For each type of playground equipment and structure indicated.

1. Manufacturer's color charts. 2. Include similar Samples of playground equipment and accessories involving color

selection.



D. Product Certificates: For each type of playground equipment, from manufacturer.

E. Maintenance Data: For playground equipment and finishes to include in maintenance manuals.

1.5 QUALITY ASSURANCE

A. Manufacturer Qualifications: A firm whose playground equipment components have been certified by IPEMA's third-party product certification service.

1. Provide playground equipment and play structure components bearing the IPEMA Certification Seal.

2. Provide the following playground equipment and play structure components bearing the IPEMA Certification Seal:

a. Embankment Slide (Sahallie)

b. Rope Components (Sahallie)

c. Nest Swing (Sahallie)

d. Climbing Structure (Sunset)

B. Safety Standards: Provide playground equipment complying with or exceeding requirements in ASTM F 1487.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Logs: The following applies to all wood, large timber, branch, and log construction.

1. Supply: All log materials will be contractor provided, and contractor prepared and installed.

2. Transport: Logs will be stored by owner and transported and installed by contractor. Contractor must ensure that wood is rot resistant and disease and insect free before preparing it.

3. Select and Cut: Contractor will select which logs will be places in which locations. Final arrangement to be approved by Owner’s Representative. Wood shall be of the diameter and lengths shown on drawings.

4. Peel and Treat: All logs will be peeled and finished as specified. a. Edges of wood members shall not have sharp points, splinters, snags or rough

edges. Edges and sharp points shall be cut off, rounded, and sanded. b. All logs shall be finished with, Timber Pro Internal wood stabilizer or approved

equal shall be applied to all edges and faces where bark is removed. http://www.timberprocoatings.com/wood-finishes/wood-stabilizer.html



5. Locate and Secure: Contractor is responsible for locating logs as shown on plans and fabrication of any anchors as shown on plans. Contractor must ensure that placement of all logs is secure.

6. Wood Bonding Agent: Commercially manufactured, waterproof adhesive for outdoor applications that is Clear Drying and provides 20,000 pounds/sq in tensile strength. a. OSI, SF 450. Meets or exceeds APA Spec. AFG 01, ASTME 84, ASTM D 3498,

VOC compliant. Or approved equal

2.2 BOULDERS

A. General:

1. Boulders shall be local basalt or approved equal.

2. Boulders shall not have sharp edges or points.

3. Boulders shall be solid and not flaking in any way.

4. Contractor to install boulders so that they are set firmly in the ground and will not tip, wiggle or waver in anyway. Boulders shall be of a weight and position so that they cannot be moved.

5. Boulders to be approved by Owner’s Representative before it is brought to the site.

B. General:

1. Boulders shall be granite, basal or approved equal. Similar to the following.

C. Example Fox Den Construction



D. Transfer Boulders: Transfer boulders shall serve the purpose of offering stable points for wheelchair users to transfer from their chair into the sane and water area. Boulders shall be easily accessible from adjacent accessible surface with a flat top; 16” tall x 24” min wide x 14” min. deep.

2.3 FREESTANDING PLAYGROUND EQUIPMENT

A. Embankment Slide: (Sahallie) 1. Basis-of-Design Product: Subject to compliance with requirements, provide embankment

slide or a comparable product to Columbia Cascade Company Stainless Steel with 6" Rails, standard color CASPAX-7 powder-coated chute rails and accessible entrance platform.

2. Configuration: Single descending chute. a. Access: Platform on top of hill. b. Sit-Down Entrance: With protective barriers and overhead handhold and side

handholds. c. Frame: Manufacturer's standard powder coated steel pipe or tubing in color

approved by client. d. Sliding Surface Construction: Flat, continuous stainless-steel sheet with integral,

full-length side rails e. Age Appropriateness: Two through five years

B. Nest Swing (Sahallie) 1. Basis-of-Design Product: Subject to compliance with requirements, provide nest swing

or a comparable product to Columbia Cascade Company 1555-1-PL Nest Swing 2. Configuration: Single descending chute.

a. Frame / Posts: Wood b. Footing: Per Structural Engineers Detail. c. Age Appropriateness: 5-12 years

C. Zip Line (Sunset)



1. Basis-of-Design Product: Subject to compliance with requirements, provide zip line or a comparable product to Columbia Cascade Company Zip Line. a. Frame / Posts: Steel b. Color: Powder coated per Owners Rep. c. Footing: Per Manufacturer d. Age Appropriateness: 5-12 years

D. Climber Structure (Sunset) 1. Basis-of-Design Product: Subject to compliance with requirements, provide nest swing

or a comparable product to Columbia Cascade Company custom design as approved by client.

2. Configuration: Wood Posts, wood walls, steel frame with wood decking platforms. a. Posts: Wood b. Age Appropriateness: 5-12 years

E. Playground Rope (Sahallie) 1. In Cord/ Huck Hercules rope (Ø 16 mm), 6-strand with steel core or approved equal.

a. Color: Green b. Connectors: As noted on the drawings.

1) Climbing Tower a) 3/8” locking Eye nut or as shown on drawings.

2) Log Net Bridge: a) Shall have a D shackle attached to the rope, supplied by the

manufacturer. b) D Shackle shall connect to 10” of 2” stainless steel chain. Chain shall

be fed through hole in top 1/3 of log. c) ¼” x 3” stainless steel washers shall be inset 1/4” on either side of the

post. One shall have a hole to receive the chain. The other shall have a slot to hold the chain taught.

d) One link shall be left on the chain and screwed through the slot with a vandal resistant 3” exterior wood screw. Prepare flat section on the log to receive the places.



c. Rope should be installed so it does not rub on adjacent logs or boulders. If this cannot be avoided contractor shall provide supply rope stop 4”OD ½” ID Black. As made by Applied Plastics Machining (part # POR023 Rope Stop) or approved equal.

2.4 SUPPLIMENTAL COMPONENTS

A. Water Pump 1. Bison Playground Pump with reinforced links. Spout of pump may need to be extended

to fall into water channel. Contractor to coordinate with Owner. http://bisonpumps.com/waterplay/

2. Water pump to have value box with back flow prevention per local codes and gate valve for winterization and pump shut off.

3. Pump to include SW1 – WO child safety upgrades from manufacturer.

B. Benches: a. Product: Oregon Corrections Bench b. Materials: Cedar and Steel c. Assemble as necessary. d. Installation: In concrete footing as recommended by manufacturer. Surface mount

where approved by Owner’s Representative.

C. Basketball Hoop: a. Product: Columbia Cascade Basketball Hoop 1001-01 b. Materials: Steel c. Assemble as necessary. d. Installation: In concrete footing as recommended by manufacturer.

D. Picnic Tables: a. Product: Columbia Cascade 2057-ADA Surface Mount Square Picnic Table b. Materials: Cedar and Metal c. Assemble as necessary. d. Installation: In concrete footing as recommended by manufacturer. Surface mount

where approved by Owner’s Representative.

E. Fort Building Supports 1. Product: Tree House Supplies : 1.5” pipe bracket and lag screws

a. https://www.treehousesupplies.com/Treehouse_Brackets_s/28.htm b. Materials: Powdercoated Steel

2. Product: Tree House Supplies : TAB 1x6 Powder Coated a. https://www.treehousesupplies.com/Treehouse_Bolts_s/41.htm b. Materials: Powdercoated Steel

2.5 MORTAR MIXES

A. General: Do not use admixtures, including pigments, air-entraining agents, accelerators, retarders, water-repellent agents, antifreeze compounds, or other admixtures, unless otherwise indicated.



1. Do not use calcium chloride. 2. Limit cementitious materials in mortar to portland cement, mortar cement, and lime. 3. Add cold-weather admixture (if used) at same rate for all mortar that will be exposed to

view, regardless of weather conditions, to ensure that mortar color is consistent. 4. Mixing Pointing Mortar: Thoroughly mix cementitious and aggregate materials together

before adding water. Then mix again, adding only enough water to produce a damp, unworkable mix that will retain its form when pressed into a ball. Maintain mortar in this dampened condition for one to two hours. Add remaining water in small portions until mortar reaches desired consistency. Use mortar within 30 minutes of final mixing; do not retemper or use partially hardened material.

B. Preblended, Dry Mortar Mix: Furnish dry mortar ingredients in the form of a preblended mix. Measure quantities by weight to ensure accurate proportions, and thoroughly blend ingredients before delivering to Project site.

C. Mortar for Stone Masonry: Comply with ASTM C 270, Proportion Specification.

1. Mortar for Setting Stone: Type S. 2. Mortar for Pointing Stone: Type N.

2.6 CAST-IN-PLACE CONCRETE

A. Concrete Materials and Properties: Comply with requirements in Division 03 Section "Cast-in-Place Concrete" to produce normal-weight concrete with a minimum 28-day compressive strength of 3000 psi, 3-inch slump, and 1-inch maximum-size aggregate.

2.7 ALUMINUM FINISHES

A. Baked-Enamel or Powder-Coat Finish: A minimum dry film thickness of 3 to 5 mils medium gloss. Comply with coating manufacturer's written instructions for cleaning, conversion coating, and applying and baking finish.

2.8 IRON AND STEEL FINISHES

A. Baked-Enamel or Powder-Coat Finish: Immediately after cleaning and pretreating, apply manufacturer's standard two-coat, baked-on finish consisting of prime coat and thermosetting topcoat. Comply with coating manufacturer's written instructions for applying and baking to achieve a minimum dry film thickness of 2 mils.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine areas and conditions, with Installer present, for compliance with requirements for site clearing, earthwork, site surface and subgrade drainage, and other conditions affecting performance of the Work.



1. Do not begin installation before final grading required for placing protective surfacing is completed unless otherwise permitted by Architect.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 PREPARATION

A. Verify locations of playground perimeter and pathways. Verify that playground layout and equipment locations comply with requirements for each type and component of equipment.

3.3 INSTALLATION, GENERAL

A. General: Comply with manufacturer's written installation instructions unless more stringent requirements are indicated. Anchor playground equipment securely, positioned at locations and elevations indicated.

1. Maximum Equipment Height: Coordinate installed heights of equipment and components with finished elevations of protective surfacing. Set equipment so fall heights and elevation requirements for age group use and accessibility are within required limits. Verify that playground equipment elevations comply with requirements for each type and component of equipment.

B. Post and Footing Excavation: Excavate holes for posts and footings as indicated in firm, undisturbed or compacted subgrade soil.

C. Post Set on Subgrade: Level bearing surfaces with drainage fill to required elevation.

D. Post Set with Concrete Footing: Comply with ACI 301 or ACI 301M for measuring, batching, mixing, transporting, forming, and placing concrete.

1. Set equipment posts in concrete footing. Protect portion of posts above footing from concrete splatter. Verify that posts are set plumb or at the correct angle, alignment, height, and spacing.

a. Place concrete around posts and vibrate or tamp for consolidation. Hold posts in position during placement and finishing operations until concrete is sufficiently cured.

2. Embedded Items: Use setting drawings and manufacturer's written instructions to ensure correct installation of anchorages for equipment.

3. Concrete Footings: Smooth top, and shape to shed water.

3.4 SETTING OF STONE

A. Perform necessary field cutting and trimming as stone is set.



B. Sort stone before it is placed in boulder scramble to remove stone that does not comply with requirements relating to aesthetic effects, physical properties, or fabrication, or that is otherwise unsuitable for intended use.

C. Arrange stones as shown on details.

D. Coordinate position and installation of stone with the installation and placement of concrete fish as shown on drawings.

E. Arrange stones with color and size variations uniformly dispersed for an evenly blended appearance.

F. Fill joints between stones with one of the following to ensure solid stone placement. See detail for minimum setting specifics. Contractor to ensure secure joints between stones.

1. Mortar 2. Decomposed granite, See pathways and pavement

3.5 ADJUSTING AND CLEANING OF STONE

A. Remove and replace stone masonry of the following description:

1. Broken, chipped, stained, or otherwise damaged stone. Stone may be repaired if methods and results are approved by Owner.

2. Defective joints. 3. Stone not matching approved samples 4. Stone not complying with other requirements indicated. 5. Stone with edges that are sharp as identified by Owner.

B. Replace in a manner that results in stone matching approved samples and mockups, complying with other requirements, and showing no evidence of replacement.

C. In-Progress Cleaning: Clean stone masonry as work progresses. Remove mortar fines and smears before tooling joints.

3.6 WOOD INSTALLATION

A. Set wood members to required levels and lines, with members plumb, true to line, cut, and fitted. Fit wood members to other construction; plunge cut, scribe and cope as needed for accurate fit. Locate knife plate, boulders, blocking, and similar supports to comply with requirements for attaching other construction to result in secure attachment.

B. Do not use materials with defects that impair quality of rough carpentry or pieces that are too small to use with minimum number of joints or optimum joint arrangement.

C. Apply field treatment as outlined above.



CEMENT CONCRETE PAVEMENT 322120 - 1

SECTION 321220 - CEMENT CONCRETE PAVEMENT

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. The work includes, but is not limited to, the following: 1. Parking space. 2. Curbs and gutters. 3. Walkways.

B. RELATED SECTIONS 1. Section 329100 Site Preparation

1.3 DEFINITIONS

A. Cementitious Materials: Portland cement alone or in combination with one or more of blended hydraulic cement, fly ash and other pozzolans, and ground granulated blast-furnace slag.

1.4 SUBMITTALS

A. Product Data: For each type of manufactured material and product indicated.

B. Design Mixtures: For each concrete pavement mixture. Include alternate mixture designs when characteristics of materials, Project conditions, weather, test results, or other circumstances warrant adjustments.

1.5 QUALITY ASSURANCE

A. Contractor shall notify Owner’s Representative if specified treatments, admixtures, or procedures conflict with proper concrete construction. Submit for approval, alternate conditions to remedy conflicts prior to commencement of construction. Do not proceed until all conflicts have been approved and corrected.

B. Manufacturer Qualifications: Manufacturer of ready-mixed concrete products who complies with ASTM C 94/C 94M requirements for production facilities and equipment.

1. Manufacturer certified according to NRMCA's "Certification of Ready Mixed Concrete Production Facilities."



C. Testing Agency Qualifications: An independent agency qualified according to ASTM C 1077 and ASTM E 329 for testing indicated, as documented according to ASTM E 548.

1. Personnel conducting field tests shall be qualified as ACI Concrete Field Testing Technician, Grade 1, according to ACI CP-01 or an equivalent certification program.

D. Mockups: Cast mockups of full-size sections of concrete pavement to demonstrate typical joints, surface finish, texture, color, and standard of workmanship.

1. Build mockups in the location and of the size indicated or, if not indicated, as directed by Architect.

2. Notify Architect seven days in advance of dates and times when mockups will be constructed.

3. Obtain Architect's approval of mockups before starting construction. 4. Maintain approved mockups during construction in an undisturbed condition as a

standard for judging the completed pavement. 5. Demolish and remove approved mockups from the site when directed by Architect. 6. Approved mockups may become part of the completed Work if undisturbed at time of

Substantial Completion.

E. Preinstallation Conference: Conduct conference at Project site to comply with requirements in Division 1 Section "Project Management and Coordination."

1. Before submitting design mixtures, review concrete pavement mixture design and examine procedures for ensuring quality of concrete materials and concrete pavement construction practices. Require representatives, including the following, of each entity directly concerned with concrete pavement, to attend conference:

a. Contractor's superintendent. b. Independent testing agency responsible for concrete design mixtures. c. Ready-mix concrete producer. d. Concrete pavement subcontractor.

1.6 PROJECT CONDITIONS

A. Traffic Control: Maintain access for vehicular and pedestrian traffic as required for other construction activities.

PART 2 - PRODUCTS

2.1 MANUFACTURERS

A. In other Part 2 articles where titles below introduce lists, the following requirements apply to product selection:

1. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to, products specified.



2. Products: Subject to compliance with requirements, provide one of the products specified.

3. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, manufacturers specified.

4. Manufacturers: Subject to compliance with requirements, provide products by one of the manufacturers specified.

2.2 FORMS

A. Form Materials: Plywood, metal, metal-framed plywood, or other approved panel-type materials to provide full-depth, continuous, straight, smooth exposed surfaces.

1. Use flexible or curved forms for curves with a radius 100 feet or less.

B. Form-Release Agent: Commercially formulated form-release agent that will not bond with, stain, or adversely affect concrete surfaces and will not impair subsequent treatments of concrete surfaces.

2.3 STEEL REINFORCEMENT

A. Plain-Steel Welded Wire Reinforcement: ASTM A 185, fabricated from as-drawn steel wire into flat sheets.

B. Deformed-Steel Welded Wire Reinforcement: ASTM A 497, flat sheet.

C. Epoxy-Coated Welded Wire Fabric: ASTM A 884/A 884M, Class A, plain steel.

D. Reinforcing Bars: ASTM A 615/A 615M, Grade 60(Grade 420); deformed.

E. Galvanized Reinforcing Bars: ASTM A 767/A 767M, Class II zinc coated, hot-dip galvanized after fabrication and bending; with ASTM A 615/A 615M, Grade 60(Grade 420) deformed bars.

F. Epoxy-Coated Reinforcing Bars: ASTM A 775/A 775M or ASTM A 934/A 934M; with ASTM A 615/A 615M, Grade 60(Grade 420) deformed bars.

G. Steel Bar Mats: ASTM A 184/A 184M; with ASTM A 615/A 615M, Grade 60(Grade 420), deformed bars; assembled with clips.

H. Plain Steel Wire: ASTM A 82, galvanized.

I. Deformed-Steel Wire: ASTM A 496.

J. Epoxy-Coated-Steel Wire: ASTM A 884/A 884M, Class A coated, plain

K. Joint Dowel Bars: Plain steel bars, ASTM A 615/A 615M, Grade 60(Grade 420). Cut bars true to length with ends square and free of burrs.

L. Epoxy-Coated Joint Dowel Bars: ASTM A 775/A 775M; with ASTM A 615/A 615M, Grade 60(Grade 420), plain steel bars.



M. Tie Bars: ASTM A 615/A 615M, Grade 60(Grade 420), deformed.

N. Hook Bolts: ASTM A 307, Grade A(ASTM F 568M, Property Class 4.6), internally and externally threaded. Design hook-bolt joint assembly to hold coupling against pavement form and in position during concreting operations, and to permit removal without damage to concrete or hook bolt.

O. Bar Supports: Bolsters, chairs, spacers, and other devices for spacing, supporting, and fastening reinforcing bars, welded wire reinforcement, and dowels in place. Manufacture bar supports according to CRSI's "Manual of Standard Practice" from steel wire, plastic, or precast concrete of greater compressive strength than concrete, and as follows:

1. Equip wire bar supports with sand plates or horizontal runners where base material will not support chair legs.

2. For epoxy-coated reinforcement, use epoxy-coated or other dielectric-polymer-coated wire bar supports.

P. Epoxy Repair Coating: Liquid two-part epoxy repair coating, compatible with epoxy coating on reinforcement.

Q. Zinc Repair Material: ASTM A 780.

2.4 CONCRETE MATERIALS

A. Cementitious Material: Use one of the following cementitious materials, of the same type, brand, and source throughout the Project:

1. Portland Cement: ASTM C 150, Type I.

B. Normal-Weight Aggregates: ASTM C 33, coarse aggregate, uniformly graded. Provide aggregates from a single source.

1. Maximum Coarse-Aggregate Size: 3/4 inch nominal. 2. Fine Aggregate: Free of materials with deleterious reactivity to alkali in cement.

C. Water: ASTM C 94/C 94M.

D. Air-Entraining Admixture: ASTM C 260.

E. Chemical Admixtures: Provide admixtures certified by manufacturer to be compatible with other admixtures and to contain not more than 0.1 percent water-soluble chloride ions by mass of cementitious material.

1. Water-Reducing Admixture: ASTM C 494/C 494M, Type A. 2. Retarding Admixture: ASTM C 494/C 494M, Type B. 3. Water-Reducing and Retarding Admixture: ASTM C 494/C 494M, Type D. 4. High-Range, Water-Reducing Admixture: ASTM C 494/C 494M, Type F. 5. High-Range, Water-Reducing and Retarding Admixture: ASTM C 494/C 494M,

Type G. 6. Plasticizing and Retarding Admixture: ASTM C 1017/C 1017M, Type II.



2.5 RELATED MATERIALS

A. Expansion- and Isolation-Joint-Filler Strips: ASTM D 1751, asphalt-saturated cellulosic fiber or ASTM D 1752, cork or self-expanding cork.

B. Bonding Agent: ASTM C 1059, Type II, non-redispersible, acrylic emulsion or styrene butadiene.

2.6 PAVEMENT MARKINGS

A. Pavement-Marking Paint: Alkyd-resin type, lead and chromate free, ready mixed, complying with FS TT-P-115, Type I or AASHTO M 248, Type N

1. Color: As indicated

B. Pavement-Marking Paint: Latex, waterborne emulsion, lead and chromate free, ready mixed, complying with FS TT-P-1952, with drying time of less than 45 minutes.

1. Color: As indicated

2.7 WHEEL STOPS

A. Wheel Stops: Precast, air-entrained concrete, 2500-psi minimum compressive strength, 4-1/2 inches high by 9 inches wide by 72 inches. Provide chamfered corners and drainage slots on underside and holes for anchoring to substrate.

1. Dowels: Galvanized steel, 3/4-inch(19-mm) diameter, 10-inch(254-mm) minimum length.

2.8 CONCRETE MIXTURES

A. Prepare design mixtures, proportioned according to ACI 301, for each type and strength of normal-weight concrete determined by either laboratory trial mixes or field experience.

1. Use a qualified independent testing agency for preparing and reporting proposed concrete mixture designs for the trial batch method.

B. Proportion mixtures to provide normal-weight concrete with the following properties:

1. Compressive Strength (28 Days): 4000 psi 2. Maximum Water-Cementitious Materials Ratio at Point of Placement: 0.50 3. Slump Limit: 5 inches plus or minus 1 inch.

C. Limit water-soluble, chloride-ion content in hardened concrete to 0.15 percent by weight of cement.



2.9 CONCRETE MIXING

A. Ready-Mixed Concrete: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M. Furnish batch certificates for each batch discharged and used in the Work.

1. When air temperature is between 85 deg F(30 deg C) and 90 deg F(32 deg C), reduce mixing and delivery time from 1-1/2 hours to 75 minutes; when air temperature is above 90 deg F(32 deg C), reduce mixing and delivery time to 60 minutes.

B. Project-Site Mixing: Measure, batch, and mix concrete materials and concrete according to ASTM C 94/C 94M. Mix concrete materials in appropriate drum-type batch machine mixer.

1. For concrete mixes of 1 cu. yd.(0.76 cu. m) or smaller, continue mixing at least 1-1/2 minutes, but not more than 5 minutes after ingredients are in mixer, before any part of batch is released.

2. For concrete mixes larger than 1 cu. yd.(0.76 cu. m), increase mixing time by 15 seconds for each additional 1 cu. yd.(0.76 cu. m).

3. Provide batch ticket for each batch discharged and used in the Work, indicating Project identification name and number, date, mixture type, mixing time, quantity, and amount of water added.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine exposed subgrades and subbase surfaces for compliance with requirements for dimensional, grading, and elevation tolerances.

B. Proof-roll prepared subbase surface below concrete pavements with heavy pneumatic-tired equipment to identify soft pockets and areas of excess yielding.

1. Completely proof-roll subbase in one direction Limit vehicle speed to 3 mph(5 km/h). 2. Proof-roll with a loaded 10-wheel tandem-axle dump truck weighing not less than 15

tons. 3. Subbase with soft spots and areas of pumping or rutting exceeding depth of 1/2 inch

require correction according to requirements in Division 2 Section "Earthwork."

C. Proceed with concrete pavement operations only after nonconforming conditions have been corrected and subgrade is ready to receive pavement.

3.2 PREPARATION

A. Remove loose material from compacted subbase surface immediately before placing concrete.



3.3 EDGE FORMS AND SCREED CONSTRUCTION

A. Set, brace, and secure edge forms, bulkheads, and intermediate screed guides for pavement to required lines, grades, and elevations. Install forms to allow continuous progress of work and so forms can remain in place at least 24 hours after concrete placement.

B. Clean forms after each use and coat with form-release agent to ensure separation from concrete without damage.

3.4 STEEL REINFORCEMENT

A. General: Comply with CRSI's "Manual of Standard Practice" for fabricating, placing, and supporting reinforcement.

B. Clean reinforcement of loose rust and mill scale, earth, ice, or other bond-reducing materials.

C. Arrange, space, and securely tie bars and bar supports to hold reinforcement in position during concrete placement. Maintain minimum cover to reinforcement.

D. Install welded wire reinforcement in lengths as long as practicable. Lap adjoining pieces at least one full mesh, and lace splices with wire. Offset laps of adjoining widths to prevent continuous laps in either direction.

E. Zinc-Coated Reinforcement: Use galvanized steel wire ties to fasten zinc-coated reinforcement. Repair cut and damaged zinc coatings with zinc repair material.

F. Epoxy-Coated Reinforcement: Use epoxy-coated steel wire ties to fasten epoxy-coated reinforcement. Repair cut and damaged epoxy coatings with epoxy repair coating according to ASTM D 3963/D 3963M.

G. Install fabricated bar mats in lengths as long as practicable. Handle units to keep them flat and free of distortions. Straighten bends, kinks, and other irregularities, or replace units as required before placement. Set mats for a minimum 2-inch(50-mm) overlap of adjacent mats.

3.5 JOINTS

A. General: Form construction, isolation, and contraction joints and tool edgings true to line with faces perpendicular to surface plane of concrete. Construct transverse joints at right angles to centerline, unless otherwise indicated.

1. When joining existing pavement, place transverse joints to align with previously placed joints, unless otherwise indicated.

B. Construction Joints: Set construction joints at side and end terminations of pavement and at locations where pavement operations are stopped for more than one-half hour unless pavement terminates at isolation joints.

1. Continue steel reinforcement across construction joints, unless otherwise indicated. Do not continue reinforcement through sides of pavement strips, unless otherwise indicated.



2. Provide tie bars at sides of pavement strips where indicated. 3. Butt Joints: Use bonding agent at joint locations where fresh concrete is placed against

hardened or partially hardened concrete surfaces. 4. Keyed Joints: Provide preformed keyway-section forms or bulkhead forms with keys,

unless otherwise indicated. Embed keys at least 1-1/2 inches(38 mm) into concrete. 5. Doweled Joints: Install dowel bars and support assemblies at joints where indicated.

Lubricate or asphalt-coat one-half of dowel length to prevent concrete bonding to one side of joint.

C. Isolation Joints: Form isolation joints of preformed joint-filler strips abutting concrete curbs, catch basins, manholes, inlets, structures, walks, other fixed objects, and where indicated.

1. Locate expansion joints at intervals of 50 feet unless otherwise indicated. 2. Extend joint fillers full width and depth of joint. 3. Terminate joint filler not less than 1/2 inch(13 mm) or more than 1 inch(25 mm) below

finished surface if joint sealant is indicated. 4. Place top of joint filler flush with finished concrete surface if joint sealant is not

indicated. 5. Furnish joint fillers in one-piece lengths. Where more than one length is required, lace or

clip joint-filler sections together. 6. Protect top edge of joint filler during concrete placement with metal, plastic, or other

temporary preformed cap. Remove protective cap after concrete has been placed on both sides of joint.

D. Contraction Joints: Form weakened-plane contraction joints, sectioning concrete into areas as indicated. Construct contraction joints for a depth equal to at least one-fourth of the concrete thickness, as follows.

1. Grooved Joints: Form contraction joints after initial floating by grooving and finishing each edge of joint with grooving tool to a 3/8-inch radius. Repeat grooving of contraction joints after applying surface finishes. Eliminate groover marks on concrete surfaces.

2. Sawed Joints: Form contraction joints with power saws equipped with shatterproof abrasive or diamond-rimmed blades. Cut 1/8-inch-(3-mm-) wide joints into concrete when cutting action will not tear, abrade, or otherwise damage surface and before developing random contraction cracks.

3. Doweled Contraction Joints: Install dowel bars and support assemblies at joints where indicated. Lubricate or asp

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