ADOT Specific Requirements for Sundance Redi-Rock MSE Modular Block Wall Systems

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ADOT Vendor Sundance REDI-ROCK, LLC, 677 N Apache Drive, Dewey, AZ 86327

General Information ADOT Pride #: 06102 Approval Date: 12/15/2009 Re-evaluaton due: 8/31/2020

Design Standards More stringent of the following: 1. 2008 ADOT Standard Specifications for Road and Bridge Construction.2. Latest ADOT MSE Wall LRFD Based Special Provisions. [Contact ADOT

for latest version at the time of the application of the system to a givenproject.]

3. FHWA (2009), “Design and Construction of Mechanically Stabilized EarthWalls and Reinforced Soil Slopes; Publication No. FHWA-NHI-09-083;Authors: Berg, R. R., Christopher, B. R., and Samtani, N. C.

4. AASHTO (2007 with Latest Interims) LRFD Bridge Design Specifications.

HITEC Evaluation Highway Innovative Technology Evaluation Center (HITEC) evaluation is not available for this system.

Block Evaluated • 28-inch series (see Figure 1)

Geogrid Connector • Type 1AT (see Figure 2)

Geogrids Evaluated • Stratagrid “SG” Series: SG350; SG550; SG600; SG700• Mirafi “XT” Series: 5XT; 8XT; 10XT; 20XT• Synteen “SF” Series: SF50; SF80; SF110

Block Geogrid Connection Strength

• For Stratagrid “SG” Series see Table 1• For Mirafi “XT” Series see Table 2• For Synteen “SF” Series see Table 3

Notes/Constraints In addition to the general design requirements provided in the Design Standards listed above, the following specific requirements apply: • For any project, use of the system evaluated herein is subject to ADOT

approval based on project- and site-specific evaluation. • Only the system components evaluated as noted above are to be used.

Tolerances shall be the more stringent of those noted in the attached drawings and the Design Standards listed above. Use of blocks without geogrid not allowed.

• Maximum wall height = 24-ft (based on maximum wall height reported insubmittal by vendor and connection strength results).

• Connection strength, for a given geogrid, greater than that noted in Tables 1to 3 shall not be used even if normal stress greater than maximum noted in the table for a given geogrid is estimated. This may limit the height of the wall based on specific geogrid being used.

• The long-term nominal connection strength, Talc, in Tables 1 to 3 shall bemultiplied by the resistance factor for connection strength as specified in the latest AASHTO specification (Design Standard 4 listed above) to obtain the long-term factored connection strength.

ADOT Specific Requirements for Sundance Redi-Rock MSE Modular Block Wall Systems

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• Reinforcement pullout shall be calculated based on the default values for geogrids provided in the latest AASHTO specification (Design Standard 4 listed above).

• Soil reinforcement length shall be measured from the back of the facing block.

• This system is not permitted for load bearing bridge abutment applications (no data provided for evaluation).

• This system is not permitted where anticipated differential settlements exceed 1/200 due to the large block size and running bond configuration.

• All details for penetration of culverts or other objects through the wall face shall be evaluated on a project- and site-specific basis.

• All details for penetration of vertical and horizontal obstructions through the reinforced soil zone shall be evaluated on a project- and site-specific basis. Examples of these obstructions include foundation elements, catch basins, slotted drains, etc.

• Drainage details shall be modified as appropriate to meet project- and site-specific requirements.

Assumptions • Vendor submittals shall be in accordance with the design standards and other

requirements listed herein. • ADOT and its design representatives will evaluate the project- and site-

specific application of the REDI-ROCK system and review submittals for approval consideration in strict accordance with the design standards, limitations, and requirements listed herein. Typical details in this package may not be applicable to a given project and will be modified, based on site-specific considerations, as necessary by the designer in consultation with the vendor.

• During construction of the REDI-ROCK system, ADOT and it's representatives will enforce project- and site-specific acceptance requirements in accordance with the plans and specifications.

ADOT Specific Requirements for Sundance Redi-Rock MSE Modular Block Wall Systems

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Figure 1: REDI-ROCK 28-inch series unit geometries.

ADOT Specific Requirements for Sundance Redi-Rock MSE Modular Block Wall Systems

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Figure 2: REDI-ROCK Type 1AT geogrid connection.

ADOT Specific Requirements for Sundance Redi-Rock MSE Modular Block Wall Systems

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Table 1 Connection Strength Requirements for Sundance REDI-ROCK 28-in Series Block with Type 1AT

Connection and Stratagrid “SG” Series Geogrid Reinforcements [Tu: Short-term Ultimate Connection Strength; Talc: Long-Term Nominal Connection Strength]

Geogrid Connection

Strength

Data Points

Normal Stress

Connection Strength

Normal Stress

Connection Strength

MAXIMUM Normal Stress

Connection Strength

(psf) (lb/ft) (psf) (lb/ft) (psf) (lb/ft)

SG350 Tu 0 0 751 1,442 2574 1,704 Talc 0 0 751 637 2574 753

SG550 Tu 0 0 2,403 4,614 2,580 4,902 Talc 0 0 2,403 2,038 2,580 2,165

SG600 Tu 0 0 2,403 4,614 2,577 4,897 Talc 0 0 2,403 2,038 2,577 2,163

SG700 Tu 0 0 2,403 4,614 2533 4,825 Talc 0 0 2,403 2,038 2533 2,131

Table 2 Connection Strength Requirements for Sundance REDI-ROCK 28-in Series Block with Type 1AT

Connection and Mirafi “XT” Series Geogrid Reinforcements [Tu: Short-term Ultimate Connection Strength; Talc: Long-Term Nominal Connection Strength]

Geogrid Connection

Strength

Data Points

Normal Stress

Connection Strength

Normal Stress

Connection Strength

MAXIMUM Normal Stress

Connection Strength

(psf) (lb/ft) (psf) (lb/ft) (psf) (lb/ft)

5XT Tu 0 0 212 407 2552 1,637 Talc 0 0 212 160 2552 643

8XT Tu 0 0 523 1,004 2,580 1,864 Talc 0 0 523 395 2,580 732

10XT Tu 0 0 722 1,386 5,210 2,293 Talc 0 0 722 545 5,210 901

20XT Tu 0 0 1,180 2,265 2561 4,237 Talc 0 0 1,180 890 2561 1,665

ADOT Specific Requirements for Sundance Redi-Rock MSE Modular Block Wall Systems

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Table 3 Connection Strength Requirements for Sundance REDI-ROCK 28-in Series Block with Type 1AT

Connection and Synteen “SF” Series Geogrid Reinforcements [Tu: Short-term Ultimate Connection Strength; Talc: Long-Term Nominal Connection Strength]

Geogrid Connection

Strength

Data Points

Normal Stress

Connection Strength

Normal Stress

Connection Strength

MAXIMUM Normal Stress

Connection Strength

(psf) (lb/ft) (psf) (lb/ft) (psf) (lb/ft)

SF55 Tu 0 0 751 1,442 2555 1,702 Talc 0 0 751 695 2555 819

SF80 Tu 0 0 1,277 2,453 2,555 4,905 Talc 0 0 1,277 1,181 2,555 2,362

SF110 Tu 0 0 1,271 2,441 2,543 4,882 Talc 0 0 1,271 1,175 2,543 2,351

ADOT Specific Requirements for Sundance Redi-Rock MSE Modular Block Wall Systems

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TYPICAL DETAILS (6 pages)

Typical details submitted to ADOT as part of the product approval process are attached. These represent generic details that must be evaluated by the

designer based on project- and site-specific requirements. The designer shall also be responsible for ensuring conformance to the details in Figures 1 and 2

as well as the constraints and design standards noted in this evaluation.