IS 2720 : Part 28 : 1974 Methods of Test for Soils - Part XXVIII : Determination of Dry Density of Soils In-place, by the Sand Replacement Method

UDC 624.131.431.5                                           CED 23

Reaffirmed 2020

1 Scope

1.1 This method covers the determination, in-place, of the dry density (in g/cm³ or kg/m³) of natural or compacted fine- and medium-grained soils for which a small sand-pouring cylinder is used. The method is applicable to layers not exceeding 150 mm in thickness (see Note).

Note - With granular materials having little or no cohesion, particularly when they are wet, there is a danger of errors in the measurement of dry density by this method. These errors are caused by the slumping of the sides of the excavated density hole and always result in an over-estimation of the density.