TEMPERATURE EFFECTS ON THE COMPACTION AND STRENGTH BEHAVIOR OF A CLAY

THE EFFECTS OF TEMPERATURE IN THE 35F TO 85F RANGE ON THE COMPACTION AND STRENGTH CHARACTERISTICS OF A KAOLINITIC CLAY SOIL HAVE BEEN REVIEWED. THE CLAY WAS COMPACTED WITH A HARVARD MINATURE DEVICE AND UNCONFINED COMPRESSION TESTS WERE CARRIED OUT. THE LABORATORY PROGRAM WAS BASED ON A STATISTICAL EXPERIMENTAL DESIGN AND THE DATA PROCURED FROM THE EXPERIMENTS WERE ANALYZED USING THE STATISTICAL ANALYSIS OF VARIANCE METHOD. COMPACTION EFFORT, WATER CONTENT, AND COMPACTION TEMPERATURE WERE FOUND TO HAVE SIGNIFICANT EFFECTS ON THE DRY DENSITY VARIABLE. IN ADDITION TO THESE THREE FACTORS, THE TEMPERATURE AT THE TIME OF UNDRAINED STRENGTH DETERMINATION HAS A STATISTICALLY SIGNIFICANT EFFECT ON THE UNDRAINED STRENGTH VARIABLE. IT IS BELIEVED THAT TEMPERATURES AFFECT THE COMPACTION PROCESS AND THE STRENGTH CHARACTERISTICS OF THE COMPACTED SOIL BY MEANS OF TWO MECHANISMS. FIRST, THE TEMPERATURE AT WHICH THE SOIL IS COMPACTED INFLUENCES THE STRUCTURE OF THE COMPACTED SOIL. SECONDLY, THE TEMPERATURE AT WHICH THE UNDRAINED STRENGTH IS TESTED AFFECTS THE SOIL PORE PRESSURE. IT WAS FOUND THAT THE STRENGTH OF SOIL TESTED AT THE SAME TEMPERATURE BUT COMPACTED AT DIFFERENT TEMPERATURES INCREASED WITH INCREASING COMPACTION TEMPERATURE. FOR SOIL COMPACTED AT THE SAME TEMPERATURE, THE UNDRAINED STRENGTH INCREASED WITH DECREASING TEST TEMPERATURE. IT APPEARS THAT THE DETRIMENTAL EFFECTS OF LOW TEMPERATURE COMPACTION MAY BE OVERCOME BY USING A LARGER COMPACTION ENERGY. /AUTHOR/

  • Supplemental Notes:
    • No 30, 83 PP, 18 FIGS, 10 TABS, 1 APP
  • Corporate Authors:

    Purdue University/Indiana Department of Transportation JHRP

    Purdue University, School of Civil Engineering
    West Lafayette, IN  USA  47907-1284
  • Authors:
    • Highter, W H
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00232794
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 9 1970 12:00AM