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Systems using size and plasticity

Short answer

Systems using both particle size and plasticity are USCS, ISSCS (IS 1498), AASHTO, Casagrande airfield classification, and British Soil Classification System.

Name the soil classification systems which use both particle size and plasticity characteristics of soil.

Soil classification systems that use both particle size and plasticity are:

  1. Unified Soil Classification System (USCS) - Casagrande.
  2. Indian Standard Soil Classification System (ISSCS) - IS 1498.
  3. AASHTO classification system - uses sieve analysis and Atterberg limits (also gives a group index).
  4. Casagrande's airfield classification (the origin of the USCS).
  5. British Soil Classification System (BSCS).

✓ Answer checked by Claude Opus 5.5 (high effort)

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