Laserfiche WebLink
Recommended geotextile physical properties <br /> for embankment stabilization and sedimentation control. <br /> The geotextile shall be of nonwoven needle- passage of water as specified. The fabric shall be <br /> punched construction and consist of long chain free of any chemical treatment or coating which <br /> polymeric fibers composed of polypropylene, poly- reduces permeability. It must also be inert to <br /> ethylene, or polyamide. The fibers shall be oriented chemicals commonly found in soil. The geotextile <br /> into a multi-directional stable network which retains shall conform to the following typical physical <br /> their positions relative to each other and allows the properties: <br /> Embankment stabilization. <br /> Category A: Stream lining, beneath wire baskets and minimum wave Category B:Beneath riprap and moderate to high wave action. <br /> action. <br /> TYPICAL TEST RESULTS <br /> GEOTEXTILE CATEGORY <br /> PHYSICAL PROPERTY TEST PROCEDURE A_ B <br /> Tensile Strength,wet,lbs. ASTM D-1682 120 200 <br /> Elongation,wet,% ASTM D-1682 15-90 15-90 <br /> Coefficient ofVAter Permeability,cm/sec. Constant Head(50mm) 0.03 0.03 <br /> Puncture Strength,lbs. ASTM D-751* 65 110 <br /> Mullen Burst Strength,psi ASTM D-3786 210 375 <br /> Abrasion Resistance,lbs. ASTM D-1175 25(minimum) 55(minimum) <br /> Taber Test <br /> (1000 revolutions, <br /> 1 kg.load/wheel) <br /> Pore Size—EOS Corps of Engineers 40(maximum 40(maximum <br /> U.S.Standard Sieve CW-02215 sieve size) sieve size) <br /> Tension testing machine with ring clamp;steel ball replaced with a 5/16"diameter solid steel cylinder with hemispherical tip centered within the <br /> ring damp. <br /> If prolonged exposure to ultraviolet rays during installation or the geotextile's service life is anticipated, <br /> the UV grades of Supac are recommended. <br /> Sedimentation control. <br /> PHYSICAL PROPERTY TEST PROCEDURE TYPICAL TEST RESULTS <br /> Tensile Strength,lbs. ASTM D-1682 100 <br /> Coefficient of Water Permeability,cm/sec. Constant Head(50mm) 0.10 <br /> Mullen Burst Strength,psi ASTM D-3786 220 <br /> Pore Size—EOS,U.S.Standard Sieve Corps of Engineers CW-02215 40(maximum sieve size) <br /> Ultraviolet resistance.%Strength Retention ASTM D-1682(After 70 <br /> 500 Xenon Vkatherometer hours) <br /> 8 <br />