This test method assigns an empirical value to the relative amount, fineness, and character of clay like material present in the test specimen.This test method provides a rapid field method for determining changes in the quality of aggregates during production or placement.The term “sand equivalent” expresses the concept that most granular soils and some fine aggregates are mixtures of desirable coarse particles, sand-size particles, and generally undesirable clay or plastic fines and dust.