THE COMPACTION OF UNIFORM, REPLICATE SOIL SPECIMENS

THE SOIL ENGINEERING PROCEDURES OF HIGHWAY ENGINEERING OCCUPY A UNIQUE POSITION IN SOIL MECHANICS BECAUSE OF THEIR EMPHASIS ON THE USE OF REMOLDED MATERIALS. SOME ASPECTS OF THIS PROBLEM ARE EXAMINED, INCLUDING AN INVESTIGATION OF METHODS FOR PREPARING UNIFORM SOIL SPECIMENS TO DESIGNATED VALUES OF DRY DENSITY AND SATURATION. THE INVESTIGATION MAKES USE OF A SPECIALLY DEVELOPED, NON-DESTRUCTIVE NUCLEAR TECHNIQUE FOR DETERMINING THE VARIATION IN DENSITY WITHIN SOIL SPECIMENS. IT IS SHOWN THAT THE WIDELY USED METHOD OF STATIC (PLUNGER) COMPACTION DOES NOT, IN GENERAL, PRODUCE UNIFORM SPECIMENS. A NEW, IMPROVED METHOD OF COMPACTION TERMED FLOATING MOLD COMPACTION IS DESCRIBED. THIS IS SHOWN TO PRODUCE SPECIMENS WHICH ARE MUCH MORE UNIFORM THAN THOSE PREPARED BY MOST OTHER COMMON COMPACTION PROCEDURES. PARTICULAR EMPHASIS IS PLACED ON COMPACTION PROCEDURES FOR MOLDING SPECIMENS WHICH MEET THE STRINGENT DEMANDS OF FREE AND TRIAXIAL TESTING. THE METHODS EXAMINED, HOWEVER, ARE EQUALLY APPLICABLE TO COMPACTING SPECIMENS FOR ROUTINE LABORATORY TESTING. /AUTHOR/

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Filing Info

  • Accession Number: 00235898
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: May 16 1971 12:00AM