EFFICIENCY OF COMPACTION OF SOIL STRUCTURE

A LABORATORY INVESTIGATION IS UNDERTAKEN TO EVALUATE THE RELATIVE EFFICIENCY OF IMPACT AND KNEADING COMPACTION METHODS BY THE STUDY OF VARIATIONS OF DRY DENSITY AND STRENGTH CHARACTERISTICS OF PARTICULATE MATERIALS SUCH AS SOILS IN TERMS OF COMPACTIVE EFFORT FOR VARIOUS MOLDING WATER CONTENTS. A DEVICE HAS BEEN DESIGNED, FABRICATED, AND USED TO EVALUATE THE APPLIED COMPACTIVE EFFORT TO A REASONABLE ACCURACY. THE TEST RESULTS INDICATE THAT THE IMPACT COMPACTION METHOD HAS GREATER EFFICIENCY IN TERMS OF GREATER STRENGTH AND HIGHER DRY DENSITY. THE IMPACT- COMPACTED SPECIMENS PRODUCE MORE RANDOM STRUCTURE THAN KNEADING COMPACTION METHODS FOR ANY GIVEN WATER CONTENT AND AT ANY GIVEN COMPACTIVE EFFORT, EVEN FOR SPECIMENS COMPACTED ON THE DRY SIDE OF OPTIMUM. /AUTHOR/