A STUDY OF THE SWELLING CHARACTERISTICS OF A REMOULDED CLAY

THE RESULTS OF SWELLING TESTS PERFORMED ON REMOULDED, SATURATED, OVERCONSOLIDATED SAMPLES OF A LOCAL CLAY IN ON-DIMENSIONAL CONSOLIDOMETERS ARE DISCUSSED. THE VARIATION OF SWELLING WITH TIME IS OBSERVED FOR DIFFERENT EQUILIBRIUM PRESSURES AND PRESSURE-DECREMENT RATIOS FOR A DURATION OF TWO WEEKS. A LINEAR RELATION IS OBTAINED FOR THE VARIATION IN SWELLING WITH THE SQUARE-ROOT OF TIME FOR SMALL VALUES OF TIME. FOR LARGE VALUES OF TIME, SWELLING IS FOUND TO VARY LINEARLY WITH THE LOGARITHM OF TIME FOR MOST OF THE TEST SAMPLES. THE EXPERIMENTS SHOW THAT THE SWELLING-TIME CURVE CAN BE DEFINED SATISFACTORILY BY THE THEORY SUGGESTED BY GIBSON AND LO (1961) TO EXPLAIN THE CONSOLIDATION BEHAVIOR OF CLAYS. VALUES OF THE SOIL PARAMETERS ARE DETERMINED FROM THE SWELLING TESTS AND THEIR BEHAVIOR WITH EQUILIBRIUM PRESSURES AND PRESSURE-DECREMENT RATIOS ARE STUDIED. THE COEFFICIENT OF SECONDARY SWELLING IS FOUND TO INCREASE WITH INCREASING ULTIMATE VOIDS RATIO AND THE VARIATION IS REPRESENTED BY A LINEAR RELATION. /TRRL/

  • Corporate Authors:

    J Se Asia Soc Soil Engr

    ,    
  • Authors:
    • Thurairajah, A
  • Publication Date: 1970-6

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. I9-39
  • Serial:
    • Volume: 1
    • Issue Number: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00235223
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: TRIS
  • Created Date: Jun 11 1972 12:00AM