ASTM D 422-63 PDF

() ASTM D Standard Test Method for Particle-Size Analysis of Soils. West Conshohocken, PA. This test method covers the quantitative determination of the distribution of particle sizes in soils. The distribution of particle sizes larger than 75 micrometers . American Society for Testing and Materials ASTM. Current edition approved Oct. 15, Published October 8 р. This test method.

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Because of the de? When mechanical sieving is used, test the thoroughness of sieving by using the hand method of sieving as described above. This option is mobile friendly and compatible with all devices, including mobile tablets and smart phones.

Such a device is illustrated in Fig. This water must be removed, either by using a water trap on the air line, or by blowing the water out of the line before using any of the air for dispersion purposes.


The distribution of particle sizes larger than 75 micrometers. A air gage must be on the line between the cup and the control valve. Sieve analysis, hydrometer analysis, and hygroscopic moisture analysis shall be performed on the sample soil. Nominal Diameter of Largest Particles, in. Replaces D — When the hydrometer analysis is not made on a portion of the soil, the preparation of the graph is optional, since values may be secured directly from tabulated data.

Such a device is illustrated in Fig. It is a number less than one, except when there is no hygroscopic moisture.

ASTM D 422 – 63 (Reapproved 2007) Standard Test Method for Particle-Size Analysis of Soils

If particles larger than those contained in the sample were removed before testing, the report shall so state giving the amount and maximum size. This mass is equal to the total percentage retained on the No. Use numerical value of one in both instances in the equation. This set consists of the following sieves: Bottles containing solutions should have the date of preparation marked on them. The distribution of particle sizes larger than 75?


Sieve analysis, hydrometer analysis, and hygroscopic moisture analysis shall be performed on the sample soil. After the dispersion period, reduce the gage pressure to 1 psi preparatory to transfer of soil-water slurry to the sedimentation cylinder. At the end of 1 min set the cylinder in a convenient location and take hydrometer readings at the following intervals of time measured from the beginning of sedimentationor as many as may be needed, depending on the sample or the speci?

This set consists of the following sieves: NOTE 11—The number of turns during this minute should be approximately 60, counting the turn upside down and back as two turns. Other devices include the wash-water bottle and a hose with nozzle connected to a pressurized distilled water tank.


The shaft shall be equipped with a replaceable stirring paddle made of metal, plastic, or hard rubber, as shown in Fig. Astm d 63 example, if the sedimentation cylinder is to be placed in the water bath, the distilled satm demineralized water to be used shall be brought to the astm d 63 of the controlled water bath; or, if the sedimentation cylinder is used in a room with controlled temperature, the water for the test shall be at the temperature of the room.

The inside diameter shall be such that the mL mark is 36 6 2 cm from the bottom on the inside. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM Headquarters.

If you feel that your comments have not received a fair hearing you should make your views known astj the ASTM Committee on Standards, at the address shown below.

ASTM – D – STM for Partical-Size Analisis of Soil_百度文库

The value of K does not change for wstm series of readings constituting a test, while values of L and T do vary. A superscript epsilon e indicates an editorial change since the last revision or reapproval.


NOTE 12—It is important to remove the hydrometer immediately after each reading. NOTE 9—A large size syringe is a convenient device for handling the water in the washing operation.

The balances, stirring apparatus, hydrometer, astm d 63 cylinder, thermometer, sieves, water bath or constant-temperature room, beaker, and timing device used in the method are specified. For the remaining sieves, continue the calculations in the same manner.

Disperse the soil according to the following schedule: The distribution of particle sizes larger than 75 micrometers retained on the No. Add distilled or demineralized water, if necessary, so that the total volume in the cup is mL, but no more.

Plasticity Index Under 5 6 to 20 Over 20 Dispersion Period, min 5 10 15 Soils containing large percentages of mica need be dispersed for only 1 min. Allow to soak for at least 16 h. For whatever sieve used, the size shall be indicated in the report. In cases where the work is performed in a room at an automatically controlled constant temperature, the water bath is not necessary.

When the soil is mostly sand the sample should be approximately g. You must have JavaScript enabled in your browser to utilize the functionality of this website. The fractions smaller than the No.

For a given hydrometer and sedimentation cylinder, values vary according to the hydrometer readings. From these two masses the percentages retained and passing the No. Measurement of the composite corrections may be made at two temperatures spanning the range of expected test temperatures, and corrections for the intermediate temperatures calculated assuming a straight-line relationship between the two observed values.