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<br /> Page 10 <br />3 Construction Quality Assurance For Earthwork <br />3.1 Introduction <br /> <br />This section describes CQA procedures for earthwork operations. The scope of earthwork and <br />related construction quality assurance includes the following elements: <br /> <br />Stockpiling and Soil Management <br />Excavation <br />General Earthfill <br />Clay Liner and Clay Earthfill <br />Subgrade Preparation <br />Granular Drainage Material <br />Coarse Gravel <br />Protective Operations Layer <br /> <br /> <br />3.2 Earthwork Construction Testing <br /> <br />3.2.1 Test Standards <br /> <br />The following test standards apply as called out in this manual or the technical specifications: <br /> <br />Standard Test Description <br /> <br />ASTM C-136 Standard Method for Partial-Size Analysis of Fine and Coarse <br />Aggregates. <br /> <br />ASTM D-698 Moisture-density relations of soils and soil-aggregate mixtures, using <br />5-pound rammer and 12-inch-drop (standard Proctor) <br /> <br />ASTM D-1556 Density of soil in-place by the sand-cone method <br /> <br />ASTM D-1557 Moisture-density relations of soils and soil-aggregate mixtures, using <br />10-pound rammer and 18-inch-drop (modified Proctor) <br /> <br />ASTM D-422 Particle size analysis of soils <br /> <br />ASTM D-2922 Density of soil and soil-aggregate in-place by nuclear methods <br /> <br />ASTM D-3017 Moisture content of soil and soil-aggregate-in-place by nuclear <br />methods <br /> <br />ASTM D-2216 Laboratory determination of water (moisture) content of soil, rock, <br />and soil-aggregate mixtures