Suggested Method of Test for Rapid Compaction Control

    Published: Jan 1970

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    The field density test, ASTM Method D 2167, Test for Density of Soil in Place by the Rubber-Balloon Method,3 or ASTM Method D 1556, Test for Density of Soil in Place by the SandCone Method,3 determines the dry density and the water content of the compacted fill. For control purposes, these values must be compared with the laboratory maximum dry density and the optimum water content. The rapid control procedure described herein yields the exact percentage of laboratory maximum dry density and a very close approximation of the difference between optimum water content and fill water content of a field density sample, without requiring determinations of water contents.4 Thus, compaction control can be effected within 1 h from the time the field test is made. Only one water content, the fill water content, is measured, and after it is available (usually the following day) the values of field dry density, cylinder dry density at fill water content, laboratory maximum dry density, and optimum water content are determined for record purpose.

    Author Information:

    Hilf, JW

    Committee/Subcommittee: D18.03

    DOI: 10.1520/STP38547S

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