ASTM-D422 › Standard Test Method for Particle-Size Analysis of Soils (Withdrawn 2016)

ASTM-D422 - 1963 R07(E2) EDITION - CANCELLED
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This test method covers the quantitative determination of the distribution of particle sizes in soils. The distribution of particle sizes larger than 75 micrometers (retained on the No. 200 sieve) is determined by sieving, while the distribution of particle sizes smaller than 75 micrometers is determined by a sedimentation process using a hydrometer. The balances, stirring apparatus, hydrometer, sedimentation cylinder, thermometer, sieves, water bath or constant-temperature room, beaker, and timing device used in the method are specified. Sieve analysis, hydrometer analysis, and hygroscopic moisture analysis shall be performed on the sample soil.

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Scope

1.1 This test method covers the quantitative determination of the distribution of particle sizes in soils. The distribution of particle sizes larger than 75 μm (retained on the No. 200 sieve) is determined by sieving, while the distribution of particle sizes smaller than 75 μm is determined by a sedimentation process, using a hydrometer to secure the necessary data (Note 1 and Note 2).

Note 1: Separation may be made on the No. 4 (4.75-mm), No. 40 (425-μm), or No. 200 (75-μm) sieve instead of the No. 10. For whatever sieve used, the size shall be indicated in the report.

Note 2: Two types of dispersion devices are provided: (1) a high-speed mechanical stirrer, and (2) air dispersion. Extensive investigations indicate that air-dispersion devices produce a more positive dispersion of plastic soils below the 20-μm size and appreciably less degradation on all sizes when used with sandy soils. Because of the definite advantages favoring air dispersion, its use is recommended. The results from the two types of devices differ in magnitude, depending upon soil type, leading to marked differences in particle size distribution, especially for sizes finer than 20 μm.

Keywords

grain-size; hydrometer analysis; hygroscopic moisture; particle-size; sieve analysis; ICS Number Code 13.300 (Protection against dangerous goods); 91.100.30 (Concrete and concrete products)

To find similar documents by ASTM Volume:

04.08 (Soil and Rock (I): D420 - D5876)

To find similar documents by classification:

13.300 (Protection against dangerous goods Including performance requirements for dangerous goods, their handling, storage, transportation, marking, labelling, etc. Nuclear fissile materials, see 27.120.30 Explosives, see 71.100.30)

91.100.30 (Concrete and concrete products Including admixtures)

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Document Number

ASTM-D422-63(2007)e2

Revision Level

1963 R07(E2) EDITION

Status

Cancelled

Modification Type

Withdrawn

Publication Date

Aug. 1, 2014

Document Type

Test Method

Page Count

8 pages

Committee Number

D18.03