Astm D 2487 Pdf Download PORTABLE
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This classification system is based on particle-size characteristics, liquid limit, and plasticity index. According to ASTM D2487-17, there are three major soil divisions: coarse-grained soils, fine-grained soils, and highly organic soils. These are subdivided further into 15 basic groups, each with its own group symbol (e.g. GW).
The above information was drawn from Table 1 of ASTM D2487-17, and the group symbols are included in parentheses. These groups are based on laboratory tests performed on the portion of a soil sample passing the 3 inch sieve (see ASTM E11-22: Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves for more information).
ASTM D2487-17 not only describes the Unified Soil Classification System for classifying mineral and organo-mineral soils for engineering purposes, but it also details the specific procedures for laboratory determination of the different soil classification groups. 153554b96e
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