IS 2720 : Part 38 : 1976 Methods of test for soils: Part 38 Compaction control test (hilf method)

1. SCOPE

1.1 This standard (Part XXXVIII) describes the procedure for determining the relative compaction and/or the difference between the optimum moisture content and the field water content of a soil by relating 'converted' wet density and 'added' water, without the immediate need to determine the water content. It is a rapid method based on tests covered by IS: 2720 (Part VII)-I974t I<1nd IS: 2720 (Part VIII)-1974t using a 1000 cm3 mould. Usually, the results of only three compacted test specimens are required and both the test and the calculations can be done in less than an hour.