Abstract:
STRENGTH IS THE RESISTANCE OF COMPACTED SOIL MIXTURES TO PLASTIC FLOW OR CONSOLIDATION AND THEIR ABILITY TO DISTRIBUTE LOAD. THE REPORT REVIEWS METHODS FOR: SELECTING PROPORTIONING AND MIXING, CONTROLLING WATER, COMPACTING, MAKING FIELD CONTROL TESTS AND PREPARING SUBGRADE. THE REVIEWS LED TO THE FOLLOWING CONCLUSIONS AND RECOMMENDATIONS: (1) MORE SOIL SURVEYS AND THEIR USE TO BETTER ADVANTAGE ARE NEEDED. (2) MECHANICAL MIXING IS RECOMMENDED. (3) EQUIPMENT FOR COMPACTION IN ONE PASS AND FOR DIRECT COMPACTION OF SANDY SOIL IS NEEDED. (4) DRAINAGE SHOULD RECEIVE MORE ATTENTION. (5) GREATER SUBGRADE DENSITY AND THICKNESS SHOULD BE REQUIRED. (6) IN SPECIFYING DENSITY MORE ATTENTION SHOULD BE GIVEN TO STRENGTH OF MIXTURE. (7) LABORATORY TESTS FOR CORRELATION WITH FIELD TESTS OF DENSITY ARE NEEDED. (8) CONTRACTING AND INSPECTING PERSONNEL SHOULD KNOW MORE ABOUT BASIC PRINCIPLES OF SOIL COMPACTION. (9) ATTENTION SHOULD BE GIVEN TO POSSIBILITY OF FROST DAMAGE. /AUTHOR/
Supplemental Notes:
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