Laserfiche WebLink
Section 02210 <br /> EXCAVATION,BACKFILLING,AND COMPACTION FOR UTILITIES <br /> E. Crushed Rock <br /> Crushed rock shall conform to the following gradation: <br /> Percent by <br /> Sieve Size Weight Passing <br /> 1 1/z in. 87-100% <br /> 3/4 in. 45-90 <br /> No. 4 20-50 <br /> No. 30 6-29 <br /> No. 200 0-12 <br /> F. Filter Fabric <br /> Non-woven fabric; shall have a No. 100 standard sieve size, a 200 lb. grab tensile strength, <br /> 50% elongation, and 120 lb. puncture strength. <br /> G. Drain Rock <br /> Natural gravel, crushed gravel, or crushed rock, free from dirt, clay balls, roots, and organic <br /> material and conforming to Section 68 of the Standard Specifications, Class 2 and the <br /> following washed sieve gradation as determined by ASTM Cl 17 and ASTM C136. <br /> Percent by <br /> Sieve Size Weight Passing <br /> 1 in. 100% <br /> 3/in. 90-100 <br /> 3/8 in. 40-100 <br /> No.4 25-40 <br /> No. 8 18-33 <br /> No. 30 5-15 <br /> No. 50 0-7 <br /> No. 200 0-3 <br /> H. Control Density Fill (CDF) <br /> Control low strength material consisting of lean concrete mix with minimum 28-day <br /> compressive strength of 50 psi to 150 psi in accordance with Section 02225, <br /> CONTROLLED DENSITY BACKFILL (CDF). <br /> Walnut Grove Sewer Project (Conformed) 02210-5 SA0160401 <br /> March 2008 nAAsa0160401\specs\w,, conform\div 2\02210.doc <br />