SOIL-CEMENT TEST-DATA CORRELATION IN DETERMINING CEMENT FACTORS FOR SANDY SOILS

TO PROVIDE QUICK AND SIMPLE PROCEDURES FOR DETERMINING CEMENT FACTORS FOR SOIL-CEMENT CONSTRUCTION AND TO RELIEVE THE PRESSURE ON LABORATORY PERSONNEL AND FACILITIES, THE PORTLAND CEMENT ASSOCIATION IS CORRELATING DATA OBTAINED FROM TESTING MORE THAN 6,000 SOILS, REPRESENTING MANY DIFFERENT SOIL TYPES, TEXTURES, AND MIXTURES. THIS PAPER PRESENTS AND DISCUSSES THE RESULTS OF A CORRELATION OF SOIL AND SOIL-CEMENT LABORATORY DATA OBTAINED BY TESTING 2,229 SANDY SOILS FOLLOWING ASTM OR AASHO STANDARD TEST PROCEDURES. BY USE OF THE CORRELATION, METHODS OF QUICKLY DETERMINING CEMENT FACTORS FOR MOST SANDY SOILS ENCOUNTERED IN SOIL-CEMENT CONSTRUCTION WERE DEVELOPED. THE 2,229 SOILS WERE PLACED INTO THREE GROUPS, TWO OF WHICH ARE BASED ON TEXTURAL CLASSIFICATION. THE THIRD GROUP INCLUDES SPECIAL OR MISCELLANEOUS GRANULAR MATERIALS. THE METHODS INVOLVED ARE PRESENTED AS STEP-BY-STEP PROCEDURES AND INCLUDE THE USE OF CHARTS BASED ON RELATIONSHIPS BETWEEN MAXIMUM DENSITY, COMBINED SILT, AND CLAY CONTENT AND THE CEMENT REQUIREMENT FOR ADEQUATELY HARDENING THE SOIL. MINIMUM COMPRESSIVE STRENGTHS ALSO ARE REQUIRED. THE PROCEDURES REQUIRE CONSIDERABLY LESS LABORATORY WORK AND TIME THAN IS NEEDED FOR MAKING COMPLETE ASTM OR AASHO SOIL-CEMENT TESTS, AND IN ADDITION, SMALLER SOIL SAMPLES CAN BE USED. THE DEPENDABILITY OF THE TEST METHODS WHEN CHECKED AGAINST THE SANDY SOILS PREVIOUSLY TESTED BY THE STANDARD ASTM-AASHO TESTS IS DISCUSSED. THE STEP-BY-STEP TESTING PROCEDURES PROVIDED RELIABLE METHODS FOR ESTABLISHING SAFE CEMENT FACTORS FOR 2,201 (OR 98.7 PERCENT) OF THE 2,229 SOILS. WHILE THE CEMENT FACTORS OBTAINED WERE PRACTICAL, THEY WERE NOT ALWAYS THE MINIMUM OR MOST ECONOMICAL THAT COULD BE USED TO HARDEN THE SOIL. THE PAPER SUGGESTS ADOPTION OF THE TEST METHODS DEVELOPED. IT FURTHER SUGGESTS THAT THE CHARTS BE USED IN THE FORM SHOWN UNTIL LOCAL DATA AND EXPERIENCE ARE OBTAINED THAT WILL PERMIT REVISION TO CONFORM MORE CLOSELY TO LOCAL CONDITIONS. /AUTHOR/

  • Supplemental Notes:
    • No 69, pp 29-46, 11 FIG, 2 TAB, 6 REF
  • Authors:
    • Leadabrand, J A
    • Norling, L T
  • Discussers:
    • Davidson, D T
    • Cornthwaite, A B

Language

  • English

Subject/Index Terms

Filing Info

  • Accession Number: 00232663
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 2004 2:44AM