The specific gravity of soils is a ratio of the mass of the soil particles compared to the mass of an identical volume of water. The ratio is widely used in geotechnical engineering and laboratory soil testing applications to compute densities, void ratios, grain size distribution, and other physical properties of soils.
Gilson's soil-specific gravity test equipment meets the specialized test method requirements of ASTM D854, AASHTO T 100, and more.
ASTM D854 and AASHTO T 100 test methods describe soil-specific gravity tests for soil solids that pass the 4.75-mm (No. 4) sieve. For soils that include larger particles, equipment for the ASTM C127/AASHTO T 85 methods is required. To test the coarser fraction, see Gilson's SG-6 Specific Gravity & Absorption of Coarse Aggregate Set.
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