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Product Specification - Structural Geogrid UXI I OOHS Tensar Earth Technologies,inc.reserves the right to change its product specifications at any time. It Is the responsibility of the specifier and purchaser to ensure that product specifications used for design and procurement purposes are current and consistent with the products used in each Instance. Please contact Tensar Earth Technologies,inc.at 800-8367271 for assistance The structural geogrid shall be an integrally formed grid structure manufactured of a stress resistant high density polyethylene material with molecular weight and molecular characteristics which impart:(a)high resistance to loss of bad capacity or structural integrity when the geogrid is subjected to mechanical stress in installation;(b)high resistance to deformation when the geogrid is subjected to applied force in use;and(c)high resistance to loss of load capacity or structural integrity when the geogrid is subjected to long-term environmental stress. The structural geogrid shall accept applied force in use by positive mechanical interlock(i.e.by direct mechanical keying)with:(a) compacted soil or construction fill materials;(b)contiguous sections of itself when overlapped and embedded in compacted soil or construction fill materials;and(c)rigid mechanical connectors such as bodkins,pins or hooks.The structural geogrid shall possess sufficient cross sectional profile to present a substantial abutment interface to compacted soil or particulate construction fill materials and to resist movement relative to such materials when subject to applied force. The structural geogrid shall possess sufficient true initial modulus to cause applied force to be transferred to the geogrid at low strain levels without material deformation of the reinforced structure. The structural geogrid shall possess complete continuity of all properties throughout its structure and shall be suitable for reinforcement of compacted soil or particulate construction fill materials to improve their long term stability in structural load bearing applications such as earth retention systems. The structural geogrid shall otherwise have the following characteristics: Product Type: Integrally Forted Structural Geogrid Load Transfer Mechanism: Positive Mechanical Interlock Product Properties Load Capacity Units MD Values' • True Initial Modulus in Use kN/m(lb/ft) 800(54,830) • Tensile Strength @5%Strain kN/m(lb/ft) 27(1,850) • Ultimate Tensile Strength kN/m(lb/ft) 58(3,970) • Long-Term Allowable Load in Sands,Silts&Clay" kN/m(lb/ft) 23.6(1,620) • Long-Term Allowable Load in Well Graded Sandi kN/m(lb/ft) 23.0(1,570) • Long-Term Allowable Load in Aggregate kN/m(ib/ft) 22.6(1,550) Integrity of Product Structure • Junction Strength kN/m(lb/ft) 54(3,690) ■ Flexural Stiffness5 X1000 mg-cm 500 Durability • Resistance to Installation Damages_ %SC/%SW/%GP 95/92/90 • Resistance to Long Term Degradation? % 100 Dimensions and Delivery The structural geogrid shall be delivered to the jobsite in roll form with each roll individually identified and nominally measuring 1.33 meters(4.36 feet)in width and 76.2 meters(250.0 feet)in length. A typical truckload quantity is 324 rolls. On special request,the structural geogrid may also be custom cut to specific lengths or widths to suit site specific engineering designs. Notes 1.Unless indicated otherwise,values shown are minimum average roll values determined in accordance with ASTM D4759. Brief descriptions of test procedures are given in the following notes. Complete descriptions of test procedures are available on request from Tensar Earth Technologies. Inc. 2.True resistance to elongation when initially subjected to a load measured via ASTM D6637 without deforming test materials under load before measuring such resistance or employing"secant"or"offset"tangent methods of measurement so as to overstate tensile properties. 3.True strength available for resisting force in long-term load bearing applications is determined by reducing ultimate tensile strength by state-of- practice factors for installation damage,degradation in use,product integrity limitations and long-term product deformation per GRI-GG4. 4.Load transfer capability measured via GRI-GG2-87. 5.Resistance to bending force measured via ASTM D-5732-95,using specimen dimensions of 864 millimeters in length by 1 aperture in width. 6.Resistance to loss of load capacity or structural integrity when subjected to mechanical installation stress in clayey sand(SC),well graded sand (SW),and crushed stone classified as poorly graded gravel(GP).The material shall be sampled in accordance with ASTM D5818 and load capacity measured in accordance with ASTM D6637. 7.Resistance to loss of load capacity or structural integrity when subjected to chemically aggressive environments measured via EPA 9090 immersion testing. Tensar Earth Technologies,Inc. 5883 Glenridge Drive,Suite 200 Atlanta,Georgia 30328-5363 _ (800)8367271 February 1,2004 This product specification supersedes all prior specifications for the product described above and is not applicable to any products shipped prior to February 1,2004.