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Product Specification - Structural Geogrid UX1800HS Tensar Earth Technologies,Inc.reserves the right to change Its product specH7cations at any time. it Is the responsib7lty 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 800-836-7272 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 mtilecular 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 longterm 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)rigidmechanical 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 appiied-force. The structural geogrid shall possess sufficient true initial modulus to cause applied force to be tfansferred 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 Formed Structural Geogrid Load Transfer Mechanism: Positive Mechanical interlock Product Properties Load Capacity Units MD Values' • True Initial Modulus in Use kN/m(lb/ft) 2,800(191,910) • Tensile Strength @5%Strain kN/m(lb/ft) 95(6,510) • Ultimate Tensile Strength2 kN/m(lb/ft) 210(14,390) • Long-Term Allowable Load in Sands,Silts&Ciay3 kN/m()b/ft) 77.8(5,330) • Long-Term Allowable Load in Well Graded Sandi kN/mQb/ft) 75.7(5,190) Long-Term Allowable Load in Aggregate3 kN/m(lb/ft) 74.3(5,090) ntegrity of Product Structure • Junction StrengO kN/m(lb/ft) 180(12,340) • Flexural Stiffness X1000 mg-cm 9,500 Durability • Resistance to installation DamagW %SC/%SW/%GP 95/92/90 • Resistance to Long Term Degradation' % 100 Dimensions and Delivery The structural geogrid shall be delivered to the jobshe in roll form with each roil individually identified and nominally measuring 1.33 meters(4.36 feet)in width and 61.0 meters(200.0 feet)in length. A typical truckload quantity is 144 rolls. On special request,the structural geogrid may also be custo}tt cut to specific lengths or widths to suit site specific engineering designs. Notes I.Unless indicated otherwise,values shdwn are minimum average roil values determined in accordance with ASTM D-4759. Brief descriptions of test iProcedures are given in the following rtes. complete descriptions of test procedures are available on request from Tensar Earth Technologies, 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 empioyirlg"secant"or"offset"tangent methods of measurement so as to overstate tensile properties. 3.True strength available for resisting in long-term bad 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 4RI-GG2-87. 5.Resistance to bending force measured Nia 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 s(ructural integrity when subjected to mechanical installation stress in clayey sand(SC),well graded sand (SVV).and crushed stone classified as dooriy graded gravel(GP).The material shall be sampled in accordance with ASTM D5818 and load capacity measured in accordance with ASTM 637. 7.Resistance to toss of load capacity or s rat integrity when subjected to chemically aggressive environments measured via EPA 9090 immersion testing. Tensar Earth Technologies,Inc. 5883 Gienddge Drive,Suite 200 Atlanta,Georgia 30328-5363 (800)-836-7271 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.