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Test Frequency <br />The test frequency for earthwork related construction materials shall be a minimum of one test <br />for every 1,000 cubic yards of material compacted in place or three tests per lift, whichever is <br />more. Testing intervals shall be determined in the field by the Engineer and the testing lab <br />technician. All other related earthwork testing such as Proctor Density curves and Atterburg <br />limits shall be done as changes in borrow material warrant. Good engineering judgement shall <br />be used to determine when a change in material warrants a new Proctor, however, the use of <br />numerous Proctor density curves for materials of the same classifications is discouraged. <br />The testing outlined in Table 1 is based on ASTM procedures. The Engineer of Record will need <br />to approve any proposed changes in testing procedures prior to them being implemented. <br />TABLE 1 <br />rroceaures <br />Earthwork ~ ASTM D698 Lab compaction of soils; <br />ASTM D4254, Relative Density; <br />ASTM D421-85, D422-63 Particle size and Soil <br />Constants; <br />ASTM D4318, Liquid Limit, Plastic Limit and <br />Plasticity Index; <br />ASTM D2487„ Soils Classification <br />ASTM D1556, Density and Unit Weight by Sand-Cone <br />Method <br />ASTM D2922-96e1, Density and of Soil and Soil- <br />Aggregate by Nuclear Methods <br />Each change of fill <br />material. For each one <br />foot lift of fill placed, <br />perform sufficient <br />number of tests on each <br />type of material to <br />evaluate conformance <br />with specifications <br />Fulton Lake Embankment Specifications and Testing requirements <br />9000 - 3 <br />