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TABLE 1 <br />Materials Quality Control Program <br />Soil/Benlnnile <br />Slurry Trench Cut-Oft Wall <br />SUBJECT STANDARD TYPE OF TEST MINIMUM FREQUENCY SPECIFIED VALUES <br /> Water ---- -pH Per water source or as As required to properly <br /> -Total Hardness changes occur hydrate bentonite with <br /> a roved additives <br /> Additives ---- Manufacturers certificate of One timz As approved by Engineer <br /> compliance wish slated <br /> cltaruCleflsliCs <br />Material Bentonite API SW 13A I\'IanufaClartfS l'erll ~IC'Jle Of One lime Premium grade sodium cation <br /> compliance montomorillonite <br /> Backfill Soils ---- Selected soils obtained from a Per borrow source or as -65 to 1004'° passing 3/8" <br /> borrow urea approved by the changes occur -40 to 85% passing q20 <br /> Engineer -25 to 40'7° passing H2W <br /> Roll to I/8" thread <br /> Prepared (or API Std 1313 -Unit \V eight Unit weight z 1.03 gn>!cc <br /> Placement into the -Visaisity V z 40 sec-March @ 68° <br /> trench -Filtrate Loss I set per shift or per batch Loss s 30 cc in 30 min. <br /> (pond) @ I W psi <br />Slurry - H H z 8 <br /> In Trench API Std 136 I -Unit Weight I set per shift at point of -Unit weight = 1.03 - 1.40 <br /> -Sand Consent trenching gm/cc <br /> -Sand content = 20r9° by <br /> volume <br /> Al Trench ASTM C 143 -Slump 1 set per 100 cu/yds. -Slump 2 to t5 inches <br /> -Gradation I set per 3W cu/yds. -65 to 100% passing 3/B" <br /> sieve <br />Backfill Mix -40 to 85% passing N20 <br /> sieve <br /> -25 to 40`70 passing p200 <br /> SIe VC <br />• <br />• <br />