EFFECT OF CHEMICALS ON SOIL-CEMENT STABILIZATION AND DISCUSSION

THE EFFECTS OF CERTAIN CHEMICALS ON SOIL-CEMENT MIXTURES WERE QUANTITATIVELY MEASURED BY THREE TESTS' UNCONFINED COMPRESSIVE STRENGTH, TRIAXIAL COMPRESSIVE STRENGTH, AND IOWA FREEZE-THAW AND WET-DRY DURABILITY TESTS. THE CHEMICALS WERE COMPOUNDS OF SODIUM, CALCIUM AND MAGNESIUM, AND ALSO COMMERCIAL LIME. THE EIGHT SOILS USED VARIED WIDELY IN PROPERTIES DUE TO DIFFERENCES IN SAMPLING LOCATION, DEPTH, TEXTURE, AND TYPE OF CLAY MINERAL. THE UNCONFINED COMPRESSIVE STRENGTHS OF SPECIMENS COMPACTED TO NEAR STANDARD PROCTOR DENSITY AT OPTIMUM MOISTURE CONTENT INDICATED THAT ORGANIC TOP SOILS BENEFITED FROM THE IN- CORPORATION OF SULFATES WHEN THE SOILS WERE ACIDIC AND LOW IN CLAY CONTENT. THE TRIAXIAL COMPRESSIVE STRENGTH TEST ON THE NATURAL SOIL, SELECTED SOIL-CEMENT, AND SOIL-CEMENT CHEMICAL MIXES INDICATED THAT FOR THE SANDY SOIL-CEMENT THE PROMISING CHEMICALS CONTAINING MAGNESIUM OR SODIUM IONS INCREASED BOTH THE COHESION AND ANGLE OF INTERNAL FRICTION. THE UNCONFINED COMPRESSIVE STRENGTH DATA WERE VERIFIED BY THE IOWA FREEZE-THAW AND WET DRY TEST STRENGTHS. CONCLUSIONS WERE' /1/ THE IOWA FREEZE-THAW TEST IS AS DEPENDABLE AS THE STANDARD ASTM-AASHO FREEZE TEST. /2/ THE ESTABLISHMENT OF A FUNCTIONAL RELATIONSHIP BETWEEN THE 14-DAY UNCONFINED COMPRESSIVE STRENGTH OF THE MIXTURE OF SOIL-CEMENT CHEMICAL AND THE STRENGTH OF THE SAME MIXTURE AFTER 7 DAYS HUMID CURING AND A FULL 10-CYCLE SUBJECTION TO THE IOWA FREEZE- THAW TEST FURTHER VALIDATES THE CONTENTION THAT STABILIZING AGENT REQUIREMENTS OF SOILS MAY BE EVENTUALLY DETERMINED BY MEANS OF SIMPLE STRENGTH TESTS.

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  • Authors:
    • Laguros, Joakim G
    • Davidson, Donald T
  • Publication Date: 1963

Media Info

  • Media Type: Print
  • Features: Appendices; Figures; References; Tables;
  • Pagination: pp 172-203
  • Monograph Title: Cement-treated soil mixtures
  • Serial:

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Filing Info

  • Accession Number: 00230509
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 2004 2:40AM