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11.2 The type and number of tests will be determined by the Engineer and will be <br /> performed at locations and depth of his or her choosing. <br /> 11.3 Acceptance of earth materials will be made only after such materials have been <br /> incorporated into the completed work. Rejection of such materials by the <br /> Engineer can be made in the borrow areas, transportation vehicles, or in-place in <br /> the completed work. The Contractor shall cooperate with the Engineer to provide <br /> access to the work areas as needed for testing and to insure that only acceptable <br /> materials will be incorporated into the completed work. <br /> 11.4 Unacceptable work shall be reworked by Contractor until satisfactory tests are <br /> obtained, or shall be removed and replaced to meet the requirement of this <br /> specification. <br /> 11.5 The following tests, either in the field or in the laboratory, will be performed to <br /> identify materials, to determine the compaction characteristics, to define the <br /> moisture content of earth material and to determine the in-place density of the <br /> compacted fill. The Contractor shall aid and cooperate with the Engineer in <br /> obtaining samples of the earth materials for testing. <br /> 1. Unified classification of soil, ASTM D 2487. <br /> 2. Density of fill by in-place sand cone method, ASTM D 1556, or <br /> nuclear density, ASTM D 2922. <br /> 3. Relative density, ASTM D 4253 and D 4254. <br /> 4. Grain size analysis of the soil, ASTM D 422. <br /> 5. Moisture content of the soil, ASTM D 2216 and D 3017. <br /> 6. Moisture-density relationship, standard Proctor density, ASTM D <br /> 698. <br /> 7. The frequency of field testing of materials during construction will <br /> be no less than one (1) test per five-thousand cubic yards (5,000 <br /> cy) for grain size analyses (ASTM D 422), Atterberg limits (ASTM <br /> D 4318 and ASTM D 425) and moisture density relationships <br /> (ASTM D 698). <br /> SPEC.A- EARTHWORK <br /> PAGE 15 <br />