CHEMICAL SOIL SUBBASE STABILIZATION

THE DESIGN, CONSTRUCTION, AND EVALUATION ARE DESCRIBED OF AN EXPERIMENTAL PROJECT FEATURING STABILIZATION OF SOIL SUBBASE BY CHEMICAL ADDITIVES. LIME, PRODUCT DEVELOPMENT CO. STABILIZER (PDC), LIME PLUS PORTLAND CEMENT, PORTLAND CEMENT ALONE, HYDRAULIC LIME, AND LIME-FLYASH WERE USED TO STABILIZE 6 INCHES OF SELECTED SOIL SUBBASE MATERIAL (A-6 TO A-7-6 WITH A GROUP INDEX GREATER THAN 10). EACH OF THE SIX 750 FOOT TEST SECTIONS WAS STABILIZED WITH 5 PERCENT OF ONE OF THE AFOREMENTIONED STABILIZERS. THE PERFORMANCE OF THE STABILIZED SUBBASE WAS EVALUATED BY STRENGTHS OF CORE SAMPLES, BENKELMAN BEAM TESTS, PLATE BEARING TESTS AND SAMPLING AND OBSERVATION OF TRANSVERSE TRENCHES CUT DOWN TO THE SUBGRADE. PAVEMENT PERFORMANCE AND THE RESULTS OF EVALUATION TESTS INDICATE THAT 6 INCHES OF THIS PLASTIC SOIL--WHEN STABILIZED WITH 5 PERCENT LIME, 5 PERCENT PDC OR 2 1/2 PERCENT LIME & 2 1/2 PERCENT CEMENT -- WILL ADEQUATELY SERVE AS A SUBBASE CAPABLE OF REPLACING 8 INCHES OF CRUSHED AGGREGATE MATERIAL. WHEN 6 INCHES OF STABILIZED SOIL SUBBASE AND 4 INCHES OF CRUSHED AGGREGATE BASE WERE USED IN LIEU OF 12 INCHES OF CRUSHED AGGREGATE BASE A SAVINGS OF ABOUT $1.00 PER SQUARE YARD RESULTED. /BPR/

  • Supplemental Notes:
    • Hpr-1/3/, STATE NO 17
  • Corporate Authors:

    West Virginia State Road Commission

    1900 Kanawha Boulevard East
    Charleston, WV  United States  25305-0440

    Bureau of Public Roads /US

    400 7th Street, SW
    Washington, DC  United States  20590
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00230655
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS, STATEDOT
  • Created Date: Aug 15 2004 2:20AM