I am working now for an project of oil & gas industry. Here we are doing river sand fillig activity in layers of 200 mm. The sand was already tested in laboratory and the result is MDD=1.75gm/cc & OMC=9.70%. On working site in situ we are doing compaction of river sand layer by 10MT Vibro roller and carrying out compaction test by core cutter method. On site Moisture content is average=7% or 8%. But sometimes resulting compaction is achieved more than 100% i.e. 101%,103%. Is that acceptable or not?
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