SAND EQUIVALENT TEST

The Sand Equivalent Test indicates the relative portion of undesirable clay-like or plastic fines and dusts that occur in granular soils and fine aggregates passing the No. 4 sieve.
The sample to be tested is placed in a special solution of calcium chloride, formaldehyde and glycerine. After shaking the cylinder, it is allowed to stand for a 20-minute sedimentation period.
Readings are then taken on the cylinder scale for the level of the top of the clay suspension and for the sand level.

The “Sand Equivalent” is the sand reading divided by the clay reading x 100. When the water content of a fine-grained soil is reduced below the plastic limit, shrinkage of the soil mass continues
until the shrinkage limit is reached.

Sand Equivalent Test Set ASTM EN, supplied with 4 pcs. transparent two graduated acrylic plastic measuring cylinders, 2 pcs. solid rubber stopper, syphon assembly (irrigator tube with valve, syphon tube and hose, blow tube and hose, 5 L plastic can with two-hole stopper), plunger assembly, measuring can, wide-mouth funnel, ruler with special set bag. Washing and Flocculating (Stock Solution) should be ordered separately.