POLYURETHANE FOAMED PLASTICS IN SOIL GROUTING

SIGNIFICANT INCREASES IN STRENGTH AND IMPERMEABILITY IN BOTH DRY AND SATURATED GRANULAR SOILS HAVE BEEN EFFECTED FOLLOWING INJECTION OF POLYURETHANE FOAMED ELASTIC SYSTEMS. SIX SYSTEMS WERE DEVELOPED, SATISFYING SEVEN CRITERIA ESTABLISHED TO MEASURE STABILIZER SUITABILITY. THEY WERE INJECTED INTO BOTH DRY AND SATURATED SAND MASSES; AND UNCONFINED COMPRESSIVE STRENGTH AND PERMEABILITY TESTS WERE PERFORMED ON THE RESULTANT STABILIZED SAMPLES. COMPARISON OF THE RESULTS OF TESTS ON AIR-DRY CURED SAMPLES TO THOSE FOR SAMPLES CURED UNDER WATER ALLOWED AN EVALUATION OF THE WATER SENSITIVITY OF A PARTICULAR SYSTEM TO BE MADE. IN THE CASE OF INJECTION INTO AN INITIALLY DRY SAND, CYLINDERS CORED FROM A LARGE STABILIZED SPHERE HAD UNCONFINED COMPRESSIVE STRENGTHS IN EXCESS OF 6,000 PSI AND WERE IMPERMEABLE. CYLINDERS CORED FROM A LARGE STABILIZED SPHERE FORMED BY INJECTING A SATURATED SOIL MASS HAD UNCONFINED COMPRESSIVE STRENGTHS IN EXCESS OF 1,400 PSI AND PERMEABILITIES OF 1/10 TO THE 6TH CM/SEC. /ASCE/

  • Supplemental Notes:
    • PROC PAPER 8947
  • Authors:
    • VINSON, T S
    • Mitchell, J K
  • Publication Date: 1972-6

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  • Accession Number: 00233299
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 19 1972 12:00AM