Laserfiche WebLink
t ~~ ~~ ~_~~: i <br />TABLE 1 <br />Materials Quality Control Program <br />Soil/Bentonite Slurry Trench Cul-Off Wall . <br /> <br />SUR/ECT STANDARD : TYPE Of TEST ~ M1NlMUM FREQUENCY SPECIFIED YACUES <br /> Water ---- -p H. - ~, 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 lime As approved 6y Engineer <br /> compliance with stated <br /> <br />characteristics _ <br /> Dentonite API S[d 13A Manufacturers certificate of One time Premium grade sodium <br />Material - compliance - cation montmerillonite <br /> Batk(i11 Soils ---- Selected soils obtained from Per borrow source or as -65 to 100% passing 3/D" <br /> a borrow area approved by changes occur sieve <br /> [he Engineer -40 to 85% passing #20 <br /> sieve <br /> -25 to 40% passing #200 <br /> sieve <br /> Roll l0 1/D' thread <br /> Prepared for API Std 138 -Unit Weigh[ Unil weight 21.01 gmlcc <br /> Placement into the -Viscosity ~ V z 40 sec-March @ GD° <br /> trench ~ i set per shift or per batch <br /> -Filtrate Loss (pond) Loss s 30 cc in 30 min. i <br />S{urry ~ @ 100 psi I <br /> -pH pf I z D <br /> In Trench API Std 13B 1 -Unit Weight <br />~ 1 se[ per shift at point of Unit weight = 1,03 - 1.•10 ~I <br /> -Sand Content trenching gm/cc -Sand content = 0 <br /> to 20% by volume <br /> Al Trench ASTM C 143 -Slump 1 set per 100 cu/yds. -Slump 2 to 6 inches <br /> -Gradation 1 set per 300 cu/yds. -GS [0 100% passing 3/D" <br /> sieve <br />BackDll Mix -40 to DS% passing #20 <br /> sieve <br /> . ~ -25 to 40% passing #200 <br /> sieve <br />