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1. Geogrid - The geogrid shall provide the following allowable tensile properties: Is LOAD CAPACITY PROPERTY METHOD VALUE Load Capacity True Initial Modulus ASTM D6637*, 54,830 Tensile Strength @5% ASTM D6637* 1,850 Strain, lbs/ft Ultimate Tensile Strength ASTM D6637* 3,970 Long -Term (Ta), lbs/ft** FHWA NHI-00-043 • sand, silt, and clay 1,620 • 3/4" minus angular 1,570 aggregate • 1-1/2" minus angular 1,550 aggregate PROPERTY METHOD VALUE Junction Strength, lbs/ft GRI GG2-87@ 3,690 10%/min * Use Method A. The tensile strength at 2 percent and 5 percent strain shall be determined with this test conducted without artificially deforming test materials under load before measuring such resistance or employing an artificial "secant" or "offset" tangent basis of measurement so as to overstate tensile properties. Ta = TULT **Where: RFCR X RFID X RFD as described in FHWA NHI-00-043 and 044 a. Tm,T - Ultimate Tensile Strength shall be the minimum average roll value ultimate tensile strength as tested per ASTM D6637. This test shall be conducted without artificially deforming test materials under load before measuring such resistance or employing an artificial "secant" or "offset" tangent basis of measurement so as to overstate tensile properties. b. RFoR - Reduction Factor for Creep Rupture (FScR) is the ratio of TULT divided by the creep rupture strength determined in accordance with ASTM D5262-97 and FHWA NHI-00-043. The test results shall be extrapolated for a 75 -year design life per FHWA NHI-00-043. Creep rupture data of a polymer product at a designed temperature is limited to one order of magnitude in extrapolation. Creep rupture testing at an elevated temperature permits an additional order of magnitude in Forward Landfill WMU FU -13 02779 4 GEOGRID