STABILIZATION OF LOESS WITH A PROMISING QUATERNARY AMMONIUM CHLORIDE

THIS PAPER PRESENTS A FURTHER EVALUATION OF ARQUAD 2 HT, A QUATERNARY AMMONIUM CHLORIDE, WITH A CALCAREOUS SILTY LOESS AND LEACHED CLAYEY LOESS. THE CHEMICAL WAS ADDED TO THE SOILS AS A WATER DISPERSION; FOR MOST TESTS A 3 PERCENT CONCENTRATION IN WATER WAS USED WITH THE SILTY LOESS AND A 5 PERCENT CONCENTRATION IN WATER FOR THE CLAYEY LOESS (0.47 AND 0.85 PERCENT OF THE DRY SOIL WEIGHT). RESULTS OF TESTS ON SUCH SOIL PROPERTIES AS PLASTICITY, MOISTURE-DENSITY RELATIONSHIP, MOISTURE-CURING TIME RELATIONSHIP, UNCONFINED COMPRESSIVE STRENGTH, BEARING CAPACITY, AND RESISTANCE TO WEATHERING INDICATE THAT: (1) IMMERSED COMPRESSIVE STRENGTH DEPENDS TO A GREAT EXTENT ON THE TYPE OF CURING PRECEEDING IMMERSION. AIR DRYING PROVED TO BE THE BEST CURING METHOD. (2) PLASTICITY DECREASED. (3) MAXIMUM DRY DENSITY DECREASED SLIGHTLY IN BOTH SOILS, WHEREAS THE OPTIMUM MOISTURE CONTENT OF THE SILTY LOESS INCREASED AND THAT OF THE CLAYEY LOESS DECREASED. (4) THE SOAKED CALIFORNIA BEARING RATIO INCREASED AND SWELLING DECREASED. (5) A CONSIDERABLE RESISTANCE TO PHYSICAL WEATHERING WAS INDICATED. A THEORETICAL INTERPRETATION OF THE MECHANISM OF SOIL STABILIZATION WITH ORGANIC CATIONIC COMPOUNDS IS PRESENTED. DIFFERENTIAL THERMAL ANALYSES OF THE SILTY LOESS TREATED WITH ARQUAD 2HT, BOTH UNDER NORMAL AND NITROGEN ATMOSPHERES, ARE EVALUATED. /AUTHOR/

  • Supplemental Notes:
    • Vol 36, pp 736-754, 9 FIG, 7 TAB, 14 REF
  • Authors:
    • Kardoush, F B
    • Hoover, J M
    • Davidson, E T
  • Publication Date: 1957

Media Info

  • Monograph Title: Proceedings of the Thirty-Sixth Annual Meeting of the Highway Research Board, Washington, D.C., January 7-11, 1957
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00233146
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: May 22 1972 12:00AM