EFFECT OF MICA ON K (SUB O) COMPRESSIBILITY OF TWO SOILS

SPECIFIC INTERPRETATIONS OF SOME EXPERIMENTAL RESULTS CONTAINED IN AN EARLIER ARTICLE (PROC PAPER 8401) ARE PRESENTED IN THIS DISCUSSION. THE VARIATION OF AXIAL STRAIN VERSUS PERCENT MICA, AND OF AXIAL STRAIN VERSUS VOID RATIO IS ATTRIBUTED TO: (1) VARIATION OF POROSITY AND GEOMETRY OF PACKING; (2) DIFFERENCES IN THE ELASTIC AND COMPRESSIBILITY FACTORS OF THE MINERAL CONSTITUENTS; (3) PARTICLE SHAPE AND SURFACE PROPERTIES. IF THE ELASTIC AND SLIDING COMPONENTS ARE CONSIDERED, IT CAN BE OBSERVED THAT SAND IN THE LOOSE STATE IS MORE COMPRESSIBLE AND THE ADDITION OF WEATHERED MICA MAKES IT MORE COMPRESSIBLE. ALTHOUGH ATTRIBUTING DIFFERENCE IN EXPERIMENTAL VALUES TO SAMPLE MOISTURE CONTENT IS IN NONCOMPLIANCE WITH THE CONDITIONS FOR THE DEFINITION OF K SUB O, IT DOES EXPLAIN OBSERVED BEHAVIOR IN TERMS OF EASILY OBTAINED SOIL PARAMETERS.

  • Authors:
    • Pise, P J
  • Publication Date: 1972-6

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  • Accession Number: 00236391
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 15 1972 12:00AM