02320.10 1079 Geosynthetics and Slope Protection
Description
02320.00Scope - This Section includes the requirements for geosynthetics used in various
applications.
02320.01Definitions - Geosynthetic terms are defined in 00350.01
Materials
02320.10Acceptance:
• Free of defects, cuts or tears. • Resistant to ambient temperatures, acid and alkaline conditions, micro-organisms and insects. • For the intended purpose and have dimensional stability.
• QPL approved for the intended application. • Fibers used in manufacture of geotextiles, and threads used in joining geotextiles by sewing, shall consist of long-chain synthetic polymers, composed of at least 95 percent by weight of polyolefins or polyesters. They shall be formed into a stable network such that the filaments or yarns retain their dimensional stability to each other, including selvages. • Meet or exceed the properties specified in 02320.20. • Be free of any chemical treatment or coating that might significantly reduce permeability.
• Geogrid reinforcements approved as Type 1 MSEW Geogrid on th e QPL. • Geogrid for Subgrade reinforcement approved as Subgrade Reinforcement Geogrid on the QPL.
the Manufacturer. For all other geosynthetics and when geotextiles are not marked with a product name, identify geosynthetics by the product label attached to the original packaging or the geosynthetic itself by the Manufacturer. Allow the Engineer to visually verify geosynthetic products before installation. Open packaged geosynthetics before use in the presence of the Engineer to confirm the correct product. Geotextile rolls without the product name printed on the geotextile or the product label affixed to the geotextile or roll core by the Manufacturer will be rejected. Any other geosynthetics that are unwrapped, missing original packaging or previously opened may not be used unless approved by the Engineer.
the geosynthetic manufacturer , and the following:
02320.10 1080 (1) Geotextiles - Geotextile products listed in the QPL that are identified as “NTPEP listed” in the remarks column have been approved based on participation in the AASHTO National Transportation Product Evaluation Program (NTPEP) and test data from the program. Manufacturer’s test certification is not required for NTPEP listed geotextiles from the QPL. For other geotextiles, include the following unless directed otherwise: • QPL product category and proposed project application. • Product name printed directly on the geotextile by the Manufacturer. For geotextiles that are not marked with a product name, provide geotextile with product label attached to the geotextile or original packaging by the Manufacturer. • Manufacturer’s name, lot number, roll number, production facility address, and full product information (style, brand, name, etc.). • Chemical composition of filaments and yarns, including polymer(s) used. • Minimum average roll values f or each of the specified properties from the same lot of geotextiles as the delivered material.
• Average roll values for each of the specified properties from the same production run as the delivered material. • Production run number, production plant name, and location. • Manufacturer's name and address. • Full product name and information. • QPL Product Category and the Standard Specification Subsection number. • Retaining wall location referencing the drawing name, detail, and structure number. • Polymer types for geogrid and coating, if present. • Primary resin type, class, grade, and category for HDPE ( ASTM D1248) and PP (ASTM D4101).
For subgrade reinforcement geogrid, include the following:
• Minimum average roll values and average roll values for each of the specified properties from the same production run as the delivered material. • Production run number, production plant name and location.
based on the following sampling and testing requirements:
for sampling shal l be a roll or sheet.
intended applications. The tensile strength requirements shall be tested in both machine and cross -machine directions.
laboratory test results that demonstrate the average roll value for each geogrid product is greater than or equal to the geogrid ultimate wide width tensile strength reported for the initial geogrid product evaluation and approval on the QPL. Determine the ultimate wide width tensile strength (T ult) according to ASTM D6637. If the average roll value for each geogrid 02320.11 1081 reinforcement product is less than the geogrid ultimate wide width tensile strength identified on the QPL, the entire production run will be rejected.
compliance with pertinent requirements, according to 00165.02.
When the Agency per forms check tests, the entire production run will be accepted or rejected according to 00150.25, if any of the average roll values of tested rolls are less than the specified minimum values.
02320.11Seam Testing and Acceptance:
• Be sewn together using a lock type stitch Type 301 or 401 as shown. • Be sewn with polymeric thread that is at least 95 percent, by weight, polyolefin or polyester, and as resistant to deterioration as the geotextile being sewn. • Have test results showing that the seams meet or exceed 90 percent of the specified tensile strength minimum values for the intended application. • Nylon thread is not allowed.
• The manufacturer's test result certificate, according to 00165.35, that includes wide strip, tensile strength test results and verifies that seam tensile strength and seam grab tensile strength meet or exceed 90 percent of the minimum specified tensile strength values for the geotextile. • A field -stitched seam test sample.
02320.20 1082 02320.20 Geotextile Property Values:
Table 02320 -1 Geotextile Property Values for Drainage Geotextile 1, 2 Geotextile Property ASTM Test Method Unit Geotextile Property Requirements Type 1 Type 2 Woven Nonwoven Woven Nonwoven Grab Tensile Strength
Cross Machine Directions D 4632 lb 180 115 250 160 Grab Failure Strain
Cross Machine Directions D 4632 % < 50 ≥ 50 < 50 ≥ 50 Tear Strength (minimum) D 4533 lb 67 40 90 56 Puncture Strength
Apparent Opening Size
U.S. Standard Sieve D 4751 — 40 40 40 40 Permittivity (minimum) D 4491 sec-1 0.5 0.5 0.5 0.5 Ultraviolet Stability Retained Strength (minimum) D 4355 (at 500 hours) % 50 50 50 50 1 All geotextile properties are Minimum Average Roll Values (MARV). The test results for any sampled roll in a lot shall meet or exceed the values shown in the table. 2 Woven slit film geotextiles (geotextiles that are made from yarns of a flat, tape- like character) are not acceptable.
Table 02320 -2 Geotextile Property Values for Riprap Geotextile 1, 2 Geotextile Property ASTM Test Method Unit Geotextile Property Requirements Type 1 Type 2 Woven Nonwoven Woven Nonwoven Grab Tensile Strength
Cross Machine Directions D 4632 lb 250 160 315 200 Grab Failure Strain
Cross Machine Directions D 4632 % < 50 ≥ 50 < 50 ≥ 50 Tear Strength (minimum) D 4533 lb 90 56 110 80 Puncture Strength
Apparent Opening Size
U.S. Standard Sieve D 4751 — 40 40 40 40 Permittivity (minimum) D 4491 sec-1 0.5 0.5 0.5 0.5 Ultraviolet Stability Retained Strength (minimum) D 4355 (at 500 hours) % 70 70 70 70 1 All geotextile properties are Minimum Average Roll Values (MARV). The test results for any sampled roll in a lot shall meet or exceed the values shown in the table. 2 Woven slit film geotextiles (geotextiles that are made from yarns of a flat, tape- like character) are not acceptable.
02320.20 1083 Table 02320 -3 Geotextile Property Values for Sediment Fence 1 Geotextile Property ASTM Test Method Unit Geotextile Property Requirements Supported Unsupported — Elongation 2 ≥ 50% Elongation 2 ≤ 50% Grab Tensile Strength
Cross Machine Directions D 4632 lb 90 90 120 100 120 100 Apparent Opening Size
U.S. Standard Sieve D 4751 — 30 30 30 Permittivity (minimum) D 4491 sec-1 0.05 0.05 0.05 Ultraviolet Stability Retained Strength (minimum) D 4355 (at 500 hours) % 70 70 70 1 All geotextile properties are Minimum Average Roll Values (MARV). The test results for any sampled roll in a lot shall meet or exceed the values shown in the table. 2 Measured according to ASTM D4632.
Table 02320 -4 Geotextile Property Values for Subgrade Geotextile (Separation) 1 Geotextile Property ASTM Test Method Unit Geotextile Property Requirements Woven Nonwoven Grab Tensile Strength
Cross Machine Directions D 4632 lb 180 113 Grab Failure Strain
Cross Machine Directions D 4632 % < 50 ≥ 50 Tear Strength (minimum) D 4533 lb 68 41 Puncture Strength
Apparent Opening Size
U.S. Standard Sieve D 4751 — 30 30 Permittivity (minimum) D 4491 sec-1 0.05 0.05 Ultraviolet Stability Retained Strength (minimum) D 4355 (at 500 hours) % 50 50 1 All geotextile properties are Minimum Average Roll Values (MARV). The test results for any sampled roll in a lot shall meet or exceed the values shown in the table.
02320.20 1084 Table 02320 -5 Geotextile Property Values for Embankment Geotextile 1 Geotextile Property ASTM Test Method Unit Geotextile Property Requirements Woven Nonwoven Grab Tensile Strength
Cross Machine Directions D 4632 lb 315 200 Grab Failure Strain
Cross Machine Directions D 4632 % < 50 ≥ 50 Tear Strength (minimum) D 4533 lb 110 80 Puncture Strength
Apparent Opening Size
U.S. Standard Sieve D 4751 — 30 30 Permittivity (minimum) D 4491 sec-1 0.02 0.02 Ultraviolet Stability Retained Strength (minimum) D 4355 (at 500 hours) % 50 50 1 All geotextile properties are Minimum Average Roll Values (MARV). The test results for any sampled roll in a lot shall meet or exceed the values shown in the table.
Table 02320 -6 Geotextile Property Values for Pavement Overlay Geotextile 1 Geotextile Property ASTM Test Method Unit Geotextile Property Requirements Nonwoven Grab Tensile Strength
Cross Machine Directions D 4632 lb 100 Grab Failure Strain
Cross Machine Directions D 4632 % ≥ 50 Asphalt Retention
Melting Point (minimum) D 276 °F 300 1 All geotextile properties are Minimum Average Roll Values (MARV). The test results for any sampled roll in a lot shall meet or exceed the values shown in the table.