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KITTITAS COUNTY SOLID WASTE ON-CALL <br />CLE ELUM TRANSFER STATION FRONT ENTRANCE DESIGN <br />PW\JA\KITTCO02\ENTRANCE FILL AND BACKFILL <br />JUNE 2023 31 23 23 - 1 <br />©COPYRIGHT 2023 JACOBS <br />SECTION 31 23 23 <br />FILL AND BACKFILL <br />PART 1 GENERAL <br />1.01 REFERENCES <br />A. The following is a list of standards which may be referenced in this section: <br />1. ASTM International (ASTM): <br />a. C117, Standard Test Method for Materials Finer Than <br />75-Micrometers (No. 200) Sieve in Mineral Aggregates by <br />Washing. <br />b. C136, Standard Method for Sieve Analysis of Fine and Coarse <br />Aggregates. <br />c. D75, Standard Practice for Sampling Aggregates. <br />d. D698, Standard Test Methods for Laboratory Compaction <br />Characteristics of Soil Using Standard Effort (12,400 ft-lbf/ft3 <br />(600 kN-m/m3)). <br />e. D4253, Standard Test Methods for Maximum Index Density and <br />Unit Weight of Soils Using a Vibratory Table. <br />f.D4254, Standard Test Method for Minimum Index Density and <br />Unit Weight of Soils and Calculation of Relative Density. <br />g. D6938, Standard Test Methods for In-Place Density and Water <br />Content of Soil and Soil-Aggregate by Nuclear Methods (Shallow <br />Depth). <br />1.02 DEFINITIONS <br />A. Relative Compaction: <br />1. Ratio, in percent, of as-compacted field dry density to laboratory <br />maximum dry density as determined in accordance with ASTM D698. <br />2. Apply corrections for oversize material to either as-compacted field dry <br />density or maximum dry density, as determined by Engineer. <br />B. Optimum Moisture Content: <br />1. Determined in accordance with ASTM Standard specified to determine <br />maximum dry density for relative compaction. <br />2. Determine field moisture content on basis of fraction passing 3/4-inch <br />sieve.