Lab Services: Soil testing

Lab Services: Soil testing

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Test Method Title

Standard Classification of Soils for Engineering Purposes

Reference Number

ASTM D2487

Material

Soil

Test Property

Soil Classification

Description of Test

This practice describes a system for classifying mineral and organo-mineral soils for engineering purposes based on laboratory determination of particle-size characteristics, liquid limit, and plasticity index and shall be used when precise classification is required. This classification system identifies three major soil divisions, which are further subdivided into a total of 15 basic soil groups. Based on the results of visual observations and prescribed laboratory tests, a soil is catalogued according to the basic soil groups, assigned a group symbol(s) and name, and thereby classified.

Preferred Test Sample Size

5 gallon bucket to a drillers jar, depending on the maximum particle size

Number of Test Specimens

1

Test Specimen Size

Material passing #10 sieve of 115 grams for sandy soil and 65 grams for silt and clay soil

Keywords

Atterberg limits, classification, clay, gradation, gravel, laboratory classification, organic soils, sand, silt, soil classification, soil tests, USCS

For more information, contact GeoTesting Express:



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224.676.1371


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