Pavement Preservation & Design - FOR OUTSIDE COMPANY€¦ · Aggregate – Rollers Press Aggregate into Emulsion – Extends Pavement Life – Adds Some Structural Value – Keeps

Pavement Preservation

May 13, 2014

Presented By:Tim Weidner & Jason Bauer

Overview

• Maintenance Timing• Preventative Maintenance• Resurfacing• Reconstruction• Recycling Options• Summary

Maintenance Timing

0

20

40

60

80

100

120

0 5 10 15 20 25

RA

NK

Time (Years)

Standard Pavement Rank Reduction Curve

Time for Preventative Measures ($0.15-

$1.00/SF)

Time for Resurfacing

($3.00 -$5.00/SF) Time for

Reconstruction ($8.00 -$15.00/SF)

Condition vs. Time

Preventative Maintenance

• Preventative Maintenance– Preventative Seals

• Rejuvenators, Sealers with Restorative Properties

– Crack Filling– Slurry Seal– Micro-Surfacing– Chip Seal– Cape Seal

Preventative Maintenance• Preventative Seals

– Applied Before Any Major Cracking

– Restores Flexibility of the Asphalt that is Lost During Production and Placement

– None Approved for MFT Funding…. Yet

– Utilized by Various Agencies in the Area (KDOT, Sugar Grove, Kendall County and Others)

Preventative Maintenance• Reclamite

– Corrective Asphalt Materials (CAM) Product

– Recommend apply right after paving

– Restore asphalt to original desirable properties

• CRF– CAM Product– Reclamite + 11%-14%

asphalt– For older pavements

• Costs $1-$2/SY

Preventative Seals


• Crack Filling– Routing, Cleaning and

Filling of Cracks in Pavement

– Keeps Water Out of Base– $1-$1.5/SY (Could be

Higher Depending on Severity of Cracking on Selected Roadways)


• Slurry Seal– Extend Pavement Life– Keep Air and Water Out– Seal Larger Cracks First– No Structural Value– No Milling Required– Skid Resistant– $1-$2 Per Square Yard


• Micro-Surfacing– “Thicker” Slurry Seal-Type

Emulsion with Higher Grade Bituminous Products and Larger Aggregate

– Extend Pavement Life– Keeps Water and Air Out– Seal Larger Cracks First– Levels Minor Rutted Areas– Skid Resistant– $3-$4 Per Square Yard

Preventative Maintenance• Chip Seal

– Seal Cracks First– Apply Asphalt Emulsion– Follow-Up Application of

Aggregate– Rollers Press Aggregate into

Emulsion– Extends Pavement Life– Adds Some Structural Value– Keeps Water and Air Out– Levels Minor Rutted Areas– Skid Resistant– $3-$4 Per Square Yard– Can be “Layered” to Provide

Structure

– Gravel or Asphalt Roadways– May have to Mill Asphalt Roadways

First (Depending on Proposed Thickness)

– May have to Scarify Gravel Roads– Very Messy


• Cape Seal– First Treatment is a

Chip Seal – Second Treatment is

Either a Slurry Seal or Microsurfacing

– Adds Structural Value– Structural Benefit of

Chip Seal, Aesthetic Benefit of Slurry Seal

– $5-$7 Per Square Yard


• Benefits of Sealing Treatments– Extend Pavement Life by 3-5 Years or More– Inexpensive – Provide Improved Aesthetics (Except Chip Seal)

• However…..– Rough Surface– Manage Resident Expectations

• Difficult to Apply in Certain Areas (Cul-De-Sacs, etc.)• Not Equal to an Overlay• Aesthetic Improvements Will Wear in 5 Years

– Length of Complete Closure – Limited Driveway Access

Resurfacing

• Overlay– “Rural” Sections; Roadways without Curb and Gutter– Address Drainage Issues (Culvert Repair/Replacement)– Ditch Grading– Patching– Milling and/or Level Binder to Correct Crown – Shoulder Stone and/or Vegetative Restoration – Inspect/Rehabilitate/Adjust Manholes– Sidewalk Repair, Paving and Striping– Costs Vary; Typical Range $15-$30/SY

ResurfacingOverlay (Rural Section)

Resurfacing

• Mill and Overlay– “Urban” Sections; Roadways with Curb and Gutter– Address Drainage Issues

• Repair Settled/Deteriorated Curb and Gutter• Review Need for New Storm Sewer

– Patching– Milling to Allow Room for New Overlay at Curb Line – Vegetative Restoration – Inspect/Rehabilitate/Adjust Manholes– Sidewalk Repair, Paving and Striping– Costs Vary; Typical Range $30-$40/SY

ResurfacingOverlay (Urban Section)

Resurfacing

Reconstruction

• Scope and Cost Varies– Heavily Distressed Pavement and Base Failures– Complete Removal and Replacement of Pavement

System– Typically Involves Removal of Existing Curb and Gutter

When Present– Storm Sewer Improvements, Driveway Approaches,

Sidewalk– Costs Highly Vary; Typical Range $70-$100+ Per SY

Reconstruction Parker Court Reconstruction

Recycling

• Hot-in-Place Recycling– Heats, Scarifies and Removes Upper 1-2 Inches of Asphalt– Mixes in Rejuvenator – Places Recycled Mix– Compacted– Resurfacing Required Afterwards– Milling May be Needed Prior to Recycling on Roads with

Curb and Gutter– Can Replace Need for Leveling Binder– Large Quantities Needed – High Mobilization Cost– $2 Per Square Yard (In Addition to Overlay Cost)

RecyclingHot-in-Place Recycling

Recycling • Pulverization/Full-Depth Reclamation

– Complete Grind of Existing Pavement and Base

– Requires Material Removal on Curbed Sections

– Acts as Base for New Pavement

– Economical When Applicable

– $5/SY – $15/SY; Could Save $10/SY During a Reconstruction Project

Recycling Pulverization/Full-Depth Reclamation




Summary

Preventative Maintenance Cost (Per SY)* Commentary

‐ Preventative Sealers $1‐$2 Restores Asphalt Flexibility

‐ Patching $40‐$50 Repair Isolated Pavement Failures

‐ Crack Filling $1‐$1.5 Seal Cracks to Eliminate Water Penetration

‐ Slurry Seal $1‐$2 Seal Road and Improve Aesthetics

‐Microsurfacing $3‐$4 Seal Road and Improve Aesthetics

‐ Chip Seal $3‐$4 Seal Road and Add Strength

‐ Cape Seal $5‐$7 Seal Road, Add Strength, Improve Aesthetics

Resurfacing Cost (Per SY) Commentary

‐ Overlay $15‐$30 New Asphalt Surface on Rural Roadway

‐Mill and Overlay $30‐$40 New Asphalt Surface on Urban Roadway

Reconstruction Cost (Per SY) Commentary

‐ Standard Reconstruction $70‐$100+ Complete Replacement of Entire Road* Costs are Approximate and will Vary on a Case-by-Case Basis

Cost Summary

Summary

• Preventative Maintenance is Lower Cost and Can Significantly Lengthen Pavement Life

• Focus on Timely Resurfacing to Keep Costs Lower• Complete Storm Sewer Improvements to Protect

Roadway Rehabilitation Investments• Avoid Reconstruction – Monitor Pavement

Condition• Utilize New Techniques and Recycling Alternatives

when Applicable• Public Education Recommended for Non-

Traditional Methods

Conclusions

Questions?

Documents

Pavement Preservation & Design - FOR OUTSIDE COMPANY€¦ · Aggregate – Rollers Press Aggregate into Emulsion – Extends Pavement Life – Adds Some Structural Value – Keeps