() 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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Solutions should be prepared frequently at least once a month or adjusted to pH of 8 or 9 by means of sodium carbonate. A full set of 42263 includes astm d 63 following Note 6: If stirring apparatus A is used, transfer the soil-water slurry from the beaker into the special dispersion cup shown in Fig.
No further reproductions authorized. The shaft shall be of such length that the stirring paddle will operate not less than 3? Replaces D — A dispersing agent is used in the water, however, and the speci?
Sieve analysis, hydrometer analysis, and hygroscopic moisture analysis shall be performed on the sample soil. D mm11? For a given hydrometer and sedimentation cylinder, values vary according to the hydrometer readings. For both hydrometers, H and H: This set consists of the following sieves: Open the control valve so that the gage indicates 1 psi 7 kPa pressure Note This mass is equal to the total percentage retained on the No.
Other devices include the wash-water bottle and a hose with nozzle connected to a pressurized distilled water tank. When it is used, soaking of the sample can be done in the sedimentation cylinder, thus eliminating the need for transferring the slurry. 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.
Hygroscopic Moisture Correction Factor 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. Add distilled or demineralized water, if necessary, so that the cup is more than half full. This set consists of the following sieves: Stir for a period of 1 min.
ASTM D – 63() Standard Test Method for Particle-Size Analysis of Soils
Readings shall be taken at the top of the meniscus formed by the suspension around the stem, since it is not possible to secure readings at the bottom of the meniscus. Bottles containing astm d 63 should have the date of preparation marked on them.
This test method covers the quantitative determination of the distribution of particle sizes in soils. NOTE 7—Solutions of this salt, if acidic, slowly revert or hydrolyze back to the orthophosphate form with a resultant decrease in dispersive action.
ASTM D 422 – 63 (Reapproved 2007) Standard Test Method for Particle-Size Analysis of Soils
NOTE 5—Water may condense in air lines when not in use. At the end of weighing, the sum of the masses retained on all the sieves used should equal closely the original mass of the quantity sieved.
Disperse the soil according to the following schedule: 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.
Nominal Diameter of Largest Particles, in. Solutions should be 4222-63 frequently at least once a month or adjusted to pH of 8 or 9 by means of sodium carbonate. The distribution of particle sizes larger than 75 micrometers retained on the No.
Dispersion of Soil Sample 9. A special dispersion cup conforming to either of the designs shown in Fig. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every?
The mass of air-dried soil selected for purpose of tests, as prescribed in Practice Dshall be sufficient to yield quantities for mechanical analysis as follows: NOTE 12—It is important to remove the hydrometer immediately after each reading.
Add together the fractional masses retained on all the sieves, including the No. This option is mobile friendly and compatible with all devices, including mobile tablets and smart phones. The amount of the inaccuracy increases as the variation from the standard temperature increases.
When the soil is mostly sand the sample should be approximately g. Originally approved in V previous astm d 63 approved in as D — 63?
Diameter of Soil Particles NOTE 16—This tabulation of graph represents the gradation of the sample tested. Since it is not possible to secure readings of soil suspensions 42263 the bottom of the meniscus, readings must be taken at the top and a correction applied.