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<br />PROPERTY TEST METHOD UNITS VALUE <br />Material <br />- high density polyethylene <br /> <br />- carbon black <br />ASTM D 1248 <br />Type II1(Class A/ Grade 5 <br />ASTM 4218 <br />% <br /> <br />% <br />97 (mint <br /> <br />2.0 Iminl <br />notes: <br />i. Percent open area measured without magnification by Corps of Engineers Method as specified in CW 02215 Civil <br />Works Construction Guide, November 1977. <br />2. Long term load capacity measured by through the junction tensile creep testing to 10,000 hours as described in <br />Geosynthetic Research Institute test method GG3-87 'Creep Behavior and Long Tertn Design Load of Geogdds." <br />3. ASTM D 1388-64 modified to account far wide specimen testing as described in Tenser test method TTM-5.0 <br />'Stiffness of Geosynthetics.' <br />4. Secant modulus at 2% elongation measured by Geosynthetic Research Institute test method GG7-67 "Geogrid <br />Tensile Strergth' No offset albwances are made in cafcutating secant modulus. <br />5. Geogritl junction strength and junction efficiency measured by Geosynthetic Research Institute test method GG2- <br />87 'Geogrid Junction Strength.' <br />6. The long-term allowable design strength ILTADSI is determined using the method outlined in GRI-GG4 <br />'Determination of the Long Term Design Strength of Stiff Geogrids.' The GRI-GG4 method applies various partial <br />lectors of safety to account for construction damage, junction strength, connexions, chemical and biological <br />degradation. <br />B. Geogrid shall be capable of retaining its structure during handling, placement, and <br />long-term service. <br />C. Geogrid provided shall be a stock product, i.e., except when specifically <br />authorized in writing by OWNER, supplier shall not furnish products specifically <br />manufactured to meet the specifications of this Project. <br />2.02 MANUFACTURER QUALITY CONTROL: <br />CONTRACTOR shall ensure that geogrid MANUFACTURER meets the conditions in this section. <br />A. Geogrid Tests and Inspection <br />1. Geogrid MANUFACTURER shall perform quality control testing of the <br />gecgrid. Samples not satisfying specifications shall result in the rejection <br />of applicable rolls. At a minimum, the following tests shall be performed <br />for quality control in accordance with test methods specified in Table <br />2.01. <br />a. Density <br />b. Mass per unit area <br />c. Thickness <br />d. Carbon black content <br />2. At geogrid MANUFACTURER'S discretion and expense, additional testing <br />of individual rolls may be performed to more closely identify noncomplying <br />rolls and to qualify individual rolls. <br />3. Geogrid manufacturer shall perform quality control tests at a frequency of <br />at least every 50,000 ft~ of geogrid produced. <br />March 22, 1996 Section 02776.1 <br />02276.1.4 Geogrid <br />Revision 1 <br />