716Geotextiles

Furnish geotextile materials listed on the QPL.

716.01GENERAL PHYSICAL REQUIREMENTS

Use geotextiles and thread used in joining geotextiles manufactured from fibers consisting of long-chain polymers, composed of at least 95% by weight of polyolefin or polyesters. Use geotextiles with fibers formed into a stable network such that the fibers or yarns retain their dimensional stability relative to each other, including selvages (edges) during shipping, handling, placement, and in service. Use geotextile free from defects or tears.

(AOS), represent MARV in the weakest principal direction. Provide geotextiles whose average test results from any roll sampled in a lot for conformance or quality assurance testing meets or exceeds minimum values provided in this Section.

Acceptance will be based on ASTM D4759. Furnish geotextiles in accordance with the strength property requirements of Table 716-1 and the AOS, permittivity, and ultraviolet stability requirements of Table 716-2 for separation geotextile, Table 716-3 for stabilization geotextile, Table 716-4 for subsurface drainage geotextile filter, and Table 716-5 for erosion control geotextile. Furnish temporary silt fence geotextile in accordance with Table 716-6. The geotextile properties required for each class of survivability are dependent upon geotextile type (i.e., woven or nonwoven). When sewn seams are used, the strength of the sewn seams must be equal to or greater than 90% of the specified grab tensile strength. – GEOTEXTILES 2020 EDITION V5.1 TABLE 716-1 E GEOTEXTILE STRENGTH PROPERTY REQUIREMENTS Geotextile Survivability1 Moderate Survivability High Survivability Property Test Methods Units Woven Nonwoven Woven Nonwoven Grab elongation ASTM D4632 % < 50 ≥ 50 < 50 ≥ 50 Grab strength ASTM D4632 lbs. 250 160 315 200 Sewn seam strength2 ASTM D4632 lbs. 225 145 285 180 Tear strength ASTM D4533 lbs. 90 55 110 80 Puncture strength ASTM D6241 lbs. 495 310 619 433 Apparent opening size ASTM D4751 sieve size Required property values for AOS, permittivity, and UV stability are based on the geotextile applications. Refer to Table 716-2 for separation geotextile, Table 716-3 for stabilization geotextile, Table 716-4 for subsurface drainage geotextile filter, and Table 716-5 for erosion control geotextile. Permittivity ASTM D4491 sec.-1 Ultraviolet stability (retained strength) ASTM D4355 % Notes:

2020 EDITION V5.1 GEOTEXTILES - 716 TABLE 716-1 M GEOTEXTILE STRENGTH PROPERTY REQUIREMENTS Geotextile Survivability1 Moderate Survivability High Survivability Property Test Methods Units Woven Nonwoven Woven Nonwoven Grab elongation ASTM D4632 % < 50 ≥ 50 < 50 ≥ 50 Grab strength ASTM D4632 N 1100 700 1400 900 Sewn seam strength2 ASTM D4632 N 990 630 1260 810 Tear strength ASTM D4533 N 400 250 500 350 Puncture strength ASTM D6241 N 2200 1375 2750 1925 Apparent opening size ASTM D4751 mm Required property values for AOS, permittivity, and UV stability are based on the geotextile applications. Refer to Table 716-2 for separation geotextile, Table 716-3 for stabilization geotextile, Table 716-4 for subsurface drainage geotextile filter, and Table 716-5 for erosion control geotextile. Permittivity ASTM D4491 sec.-1 Ultraviolet stability (retained strength) ASTM D4355 % Notes:

716.02SEPARATION GEOTEXTILE

Do not use woven slit film geotextiles (i.e., geotextiles made from yarns of a flat, tape-like character). Provide geotextile in accordance with the strength requirements from Table 716-1 for the level of survivability specified in the contract or special provisions. Provide geotextile in accordance with the permittivity, apparent opening size, and ultraviolet stability requirements of Table 716-2. – GEOTEXTILES 2020 EDITION V5.1 TABLE 716-2 SEPARATION GEOTEXTILE PROPERTY REQUIREMENTS Test Methods Units Requirements Geotextile survivability As specified from Table 716-1 Permittivity1 ASTM D4491 sec.-1 ≥ 0.02 Apparent opening size ASTM D4751 sieve size (mm) No. 30 (≤ 0.60) Ultraviolet stability (retained strength) ASTM D4355 % ≥ 50 after 500 hrs. of exposure Notes:

soil. Use greater value as specified in the contract or special provisions.

716.03STABILIZATION GEOTEXTILE

Do not use woven slit film geotextiles (i.e., geotextiles made from yarns of a flat, tape-like character). Provide geotextile in accordance with the strength requirements for high survivability from Table 716-1 . Provide geotextile in accordance with the permittivity, apparent opening size, and ultraviolet stability requirements of Table 716-3. TABLE 716-3 STABILIZATION GEOTEXTILE PROPERTY REQUIREMENTS1 Test Methods Units Requirements Geotextile survivability High survivability from Table 716-1 Permittivity2 ASTM D4491 sec.-1 ≥ 0.10 Apparent opening size ASTM D4751 sieve size (mm) No. 40 (≤ 0.43) Ultraviolet stability (retained strength) ASTM D4355 % ≥ 50 after 500 hrs. of exposure Notes:

soil. Use greater value as specified in the contract or special provisions.

716.04SUBSURFACE DRAINAGE GEOTEXTILE FILTER

Do not use woven slit film geotextiles (i.e., geotextiles made from yarns of a flat, tape-like character). Provide geotextile in accordance with the strength requirements from Table 716-1 for the level of survivability specified in the contract or special provisions. Provide geotextile in accordance with the permittivity, apparent opening size, and ultraviolet stability requirements of Table 716-4. 2020 EDITION V5.1 GEOTEXTILES - 716 TABLE 716-4 SUBSURFACE DRAINAGE GEOTEXTILE FILTER PROPERTY REQUIREMENTS1 Requirements2 Test Methods Units Class A Class B Class C Geotextile survivability As specified from Table 716-1 Permittivity3 ASTM D4491 sec.-1 ≥ 0.5 ≥ 0.4 ≥ 0.3 Apparent opening size ASTM D4751 sieve size (mm) No. 40 (≤ 0.43) No. 60 (≤ 0.25) No. 80 (≤ 0.18) Ultraviolet stability (retained strength) ASTM D4355 % ≥ 50 after 500 hrs. of exposure Notes:

fines (gravel or sand). Use Class “B” subsurface drainage geotextile when the in situ soil has 15 to 50% fines (silty or clayey sand or gravel). Use Class “C” subsurface drainage geotextile when the in situ soil has more than 50% fines (silt or clay).

soil. Use greater values as specified in the contract or special provisions.

716.05PERMANENT EROSION CONTROL GEOTEXTILE

Do not use woven slit film geotextiles (i.e., geotextiles made from yarns of a flat, tape-like character). Provide geotextile in accordance with the strength requirements from Table 716-1 for the level of survivability specified in the contract or special provisions. Provide geotextile in accordance with the permittivity, apparent opening size, and ultraviolet stability requirements of Table 716-5. – GEOTEXTILES 2020 EDITION V5.1 TABLE 716-5 PERMANENT EROSION CONTROL GEOTEXTILE PROPERTY REQUIREMENTS1 Requirements2 Test Methods Units Class A Class B Class C Geotextile survivability As specified from Table 716-1 Permittivity3 ASTM D4491 sec.-1 ≥ 0.7 ≥ 0.4 ≥ 0.2 Apparent opening size ASTM D4751 sieve size (mm) No. 40 (≤ 0.43) No. 60 (≤ 0.25) No. 70 (≤ 0.22) Ultraviolet stability (retained strength) ASTM D4355 % ≥ 70 after 500 hrs. of exposure Notes:

15% fines (gravel or sand). Use Class “B” permanent erosion control geotextile when the in situ soil has 15 to 50% fines (silty or clayey sand or gravel). Use Class “C” permanent erosion control geotextile when the in situ soil has more than 50% fines (silt or clay).

soil. Use greater values as specified in the contract or special provisions.

716.06TEMPORARY SILT FENCE GEOTEXTILE

Provide geotextile in accordance with Table 716-6 . TABLE 716-6 TEMPORARY SILT FENCE PROPERTY REQUIREMENTS Test Methods Units Stabilized Silt Fence1 Unstabilized Silt Fence2 Grab strength, machine direction ASTM D4632 lb. (N) ≥ 90 (≥ 400) ≥ 125 (≥ 550) Grab strength, X-machine direction ASTM D4632 lb. (N) ≥ 90 (≥ 400) ≥ 100 (≥ 450) Permittivity3 ASTM D4491 sec.-1 ≥ 0.05 ≥ 0.05 Apparent opening size ASTM D4751 sieve size (mm) No. 30 (≤ 0.60) No. 30 (≤ 0.60) Ultraviolet stability (retained strength) ASTM D4355 % ≥ 70 after 500 hrs. of exposure Notes: