The static compaction of soils

This paper describes a new called the compaction test for soils. This is based on the variable peak stress-constant stroke compaction process. Although this does not lend itself to a constant energy impact compaction, an attempt has been made to derive the energy input OMC (optimum moisture content) relationship indirectly. Drawbacks of standard compaction tests are outlined, and a case is made for a static compaction in which the energy input per unit volume can be easily varied. The concept and objectives of the new static compaction are outlined and the procedure described. Results are presented graphically and compared with results using the Proctor compaction test. A difference is found due to the lack of a consolidation phase in the Proctor test. The use of static compaction results using the relationship between optimum moisture content and energy input is discussed.