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2016-06-01_REVISION - M1985112
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2016-06-01_REVISION - M1985112
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Last modified
8/24/2016 6:22:56 PM
Creation date
6/3/2016 2:33:03 PM
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Template:
DRMS Permit Index
Permit No
M1985112
IBM Index Class Name
REVISION
Doc Date
6/1/2016
Doc Name
TR02
From
Loloff Construction, Inc.
To
DRMS
Email Name
PSH
WHE
Media Type
D
Archive
No
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1.3 ABBREVIATIONS AND DEFINITIONS <br /> A. API-American Petroleum Institute <br /> B. ASTM-American Society for Testing and Materials <br /> C. Slurry Trench-A narrow,vertical-walled trench of specified width excavated by the slurry trench <br /> method and backfilled with specified materials to form a cutoff wall of low permeability. The terms <br /> "Slurry Trench"and"Slurry Wall"are used interchangeably in these specifications. <br /> D. Slurry Trench Method-A method of excavating a narrow,vertical trench using a slurry mixture to <br /> support the trench walls and prevent movement of groundwater into or through the excavated trench. <br /> E. Water-Bentonite Slurry-A stable colloidal suspension of powdered bentonite in water. The terms <br /> "slurry"and"water-bentonite slurry"are used interchangeably in these specifications. <br /> F. Soil-Bentonite(SB)Backfill-A homogeneous mixture of specified s aterial, bentonite and water. <br /> The terms"soil-bentonite backfill"and"backfill"are used inter geably in these specifications. <br /> G. Slurry Trench Specialist-An individual employed by the Co t o has had proven and successful <br /> experience in slurry trench construction and is knowled:' •• e of:(1 roper methods employed to <br /> mix slurry and backfill,(2)the use,testing and contro •entonite as a ,(3)construction <br /> equipment,(4)excavation and backfill operations, • (5)to ' g for slurr rench quality control. <br /> H. Working Platform-The working platform is the su . • •mpacted fill and/or excavated surface from <br /> which the slurry wall is constructed.The w.rk platform • be relatively level,stable. <br /> I. Supplemental Fines—The soil that contai nt pe •tage of fines content(passing the-#200 <br /> sieve or.075 mm in the largest dimension) , - he excavated soil for the purpose of <br /> increasing the overall fines conte. - the so onite backfill. <br /> J. Key Depth-The depth tow ' he sI tren, 's excavated into less weathered suitable bedrock <br /> providing the connection • , een t• . • wa .nd the less weathered bedrock. <br /> 1.4 SUBMITTALS <br /> A. The following r- s shall • •rep. • by the Slurry Trench Specialist on a regular schedule during the <br /> progress oft •rk. <br /> 1. Fresh Bentonit- rry <br /> a. A record of plan -mixed bentonite slurry properties during construction. <br /> 2. Trench Bentonite Slurry Mix <br /> a. A record of in-trench bentonite slurry properties made during construction. <br /> 3. Slurry-Bentonite(SB)Backfill Mix <br /> a. A record of SB backfill material properties.Location of sample and number of molded <br /> specimens for laboratory testing shall be noted. <br /> 4. Supplemental Fines Testing—Results of supplemental fines tests performed on borrow sources <br /> samples and/or supplemental fines staged along trench. <br /> B. The following reports shall be prepared by the Contractor on a regular schedule during the progress of <br /> the work. <br /> Loloff Slurry Wall 3156 00-2 <br />
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