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.~ <br />TABLE 1 <br />Materials Quality Control Program <br />Soil/Bentonite Slurry Trench Cul-Off Wall <br />SUB/fCT STANDARD TYPE Of TEST MINiMUAI FREQUEN(:Y SPECIFIED S'ALUES <br /> Water ---- -pH Per water source or as As required to properly <br /> -Total Hardness changes occur hydrate bentonite with <br /> approved additives <br /> Additives ---- Manufacturers certificate of One time As approved by Engineer <br /> compliance with slated <br /> characteristic <br /> Oentonite API Std 13A Manufacturers certificate of One time Premium grade sodium <br />Material compliance cation monlmerillonite <br /> Backfill Soils ---- Selected soils obtained from Per borrow source or as GS to 100% Massing 3(8' <br /> a borrow area approved by changes occur sieve <br /> the Engineer -40 l0 85% passing #20 <br /> sieve <br /> -25 to 40% passing #200 <br /> sieve <br /> Roll to 1/t3' Ihrcad <br /> Prepared for AP! Sld 136 -Unit Weigh[ Unit weight x1.03 gmJcc <br /> Placement into the -Viscosity V x 40 sec-March @ 68° <br /> bench ~ _ 1 se[ per shill or per 6alch <br /> -FilVale Loss (pond) I oss s 30 cc in 30 min. <br />Slurry C 100 psi <br /> -pH pH z 8 <br /> In Trench API Std 13B 1 -Unit Weight 1 set per shift at point of Unit weight = 1.03 - 1.40 <br /> -Sand Content trenching gndcc -Sand content = 0 <br /> l0 20% V,y volume <br /> At Trench ASTM C 143 -Slump 1 set per 100 cu/yds. -Slump ? to 6 inches <br /> -Gradation 1 set per 300 cu/yds. -65 to 100% passing 3(8' <br /> sieve <br />Backfill Mix _ <br />~ -40 to 85% passing #20 <br /> sieve <br /> -25 to 40°,' passing #200 <br /> sieve <br />• <br />u <br />