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ASTM International - ASTM D425-17

Standard Test Method for Centrifuge Moisture Equivalent of Soils

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Organization: ASTM International
Publication Date: 15 January 2017
Status: active
Page Count: 5
ICS Code (Earthworks. Excavations. Foundation construction. Underground works): 93.020
significance And Use:

5.1 All water contained in a saturated soil cannot be removed by gravity drainage alone. The amount of water retained after gravity drainage is usually expressed as the water holding capacity or... View More

scope:

1.1 This test method covers the determination of the moisture equivalent of soil in the laboratory by means of a centrifuge technique.

1.2 This test method is limited to specimens of coarse-grained sandy soils having a maximum particle size of less than 2.00 mm and with fines of low plasticity. Soils having a unified soil classification, based upon procedures outlined in Practice D2488 such as SP, SW, SC-SM, or SM are considered acceptable for the test method.

1.2.1 For soils that are predominantly fine-grained, coarse-grained soils with medium to high plasticity, intact specimens or soils being tested at a specific density or unit weight refer to Test Methods D6836.

1.3 This test method is intended to be performed in a constant temperature environment. Variations in temperature exceeding the range outlined in 8.7 may influence the test data.

1.4 Units-The values stated in SI units are to be regarded as the standard except for sieve designations, which also include the "alternative" system in accordance with E11.

1.5 All recorded and calculated values shall conform to the guide for significant digits and rounding established in Practice D6026.

1.6 The procedures used to specify how data are collected/recorded and calculated in this standard are regarded as the industry standard. In addition, they are representative of the significant digits that generally should be retained. The procedures used do not consider material variation, purpose for obtaining data, special purpose studies, or any considerations for the user's objectives; and it is common practice to increase or reduce significant digits of reported data to commensurate with these considerations. It is beyond the scope of these test methods to consider significant digits used in analysis methods for engineering design.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Document History

ASTM D425-17
January 15, 2017
Standard Test Method for Centrifuge Moisture Equivalent of Soils
1.1 This test method covers the determination of the moisture equivalent of soil in the laboratory by means of a centrifuge technique. 1.2 This test method is limited to specimens of coarse-grained...
February 1, 2008
Standard Test Method for Centrifuge Moisture Equivalent of Soils
1.1 This test method covers the determination of the moisture equivalent of soil in the laboratory by means of a centrifuge technique. 1.2 This test method is limited to disturbed specimens of...
May 27, 1988
Standard Test Method for Centrifuge Moisture Equivalent of Soils
1.1 This test method covers the determination of the moisture equivalent of soil in the laboratory by means of a centrifuge technique. 1.2 This test method is limited to disturbed specimens of...
May 27, 1988
Standard Test Method for Centrifuge Moisture Equivalent of Soils
Not all water contained in a saturated soil can be removed by gravity drainage. The amount of water retained after gravity drainage is usually expressed as water holding capacity or specific...
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