STABILIZATION OF SILTY SOILS IN ALASKA, PART 2

THIS BRIEF INTERIM REPORT DESCRIBES A LABORATORY STUDY OF THE EFFECTS ON THE PERMEABILITY AND FROST HEAVE CHARACTERISTICS OF AN ALASKAN SILT, AASHO CLASSIFICATION A-4 /8/, PRODUCED BY ADDING PORTLAND CEMENT, TETRA-SODIUM PYROPHOSPHATE /TSPP/, TRI-SODIUM PHOSPHATE, CALCIUM CHLORIDE , AND SODIUM HEXAMETAPHOSPHATE. FROST HEAVE TESTS WERE PERFORMED TO MEASURE THE EFFECTIVENESS OF POLYVINYL MEMBRANE TO PREVENT THE DETRIMENTAL EFFECTS OF FROST. TSPP /0.3 PERCENT/ CAUSED A LARGE DECREASE IN PERMEABILITY AND ALSO PROVED MOST EFFECTIVE IN REDUCING FROST HEAVE. PORTLAND CEMENT APPLIED AT RATES FROM 1 TO 3 PERCENT DID NOT GREATLY AFFECT PERMEABILITY AND, FOR THE SOIL TESTED, INCREASED FROST HEAVE. THE POLYVINYL MEMBRANE PREVENTED FROST HEAVE BUT CAUSED REDISTRIBUTION OF THE WATER TO THE TOP OF THE SPECIMEN INDICATING THE POSSIBILITY OF SERIOUS LOSS OF STRENGTH IN THE UPPER LAYERS OF THE PAVEMENT. /BPR/

  • Supplemental Notes:
    • Hpr-1/2/, 12470, 5
  • Corporate Authors:

    University of Alaska, Fairbanks

    Fairbanks, AK  United States  99701
  • Authors:
    • Peyton, H R
    • Lund, J W
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00230579
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Aug 15 2004 2:18AM