Laboratory Assessment To Correlate DCP And Optimum Moisture Content With Strength Characteristic Of Subgrade

In this research a laboratory investigation has been performed on the soil from different locations of Gujarat, India to Correlate Optimum moisture content (OMC) Dynamic Cone Penetration (DCP) test values with strength parameters of subgrade. In-situ condition has been made in laboratory using bigger testing mould and various tests like Liquid Limit, Plastic limit as well as CBR, PBT, UCS and DCP were carried out on repetitive samples of Maximum Dry Densities achieved through modified proctor effect in soaked condition. The empirical correlations have been developed among test results using multiple variable linear regression procedure. The formulations are formalized using other sets of tests data. The developed empirical correlations may be beneficial to approximate time consuming strength characteristic as well as physical properties at various locations within area under consideration using simple and rapid DCP test. KeywordCBR, DCP, OMC, MDD, PBT,