A STUDY OF LIME TREATMENT OF SUBGRADE TO DEPTHS OF TWO FEET

THE PURPOSE OF THIS PROJECT IS TO DETERMINE IF TWO FEET OF A COMPACTED SUBGRADE COULD BE PLOWED, MIXED WITH LIME, AND RECOMPACTED IN A SINGLE LIFT AND TO DETERMINE IF THE CHARACTERISTICS OF THE SUBGRADE SOILS COULD BE ALTERED SUFFICIENTLY TO RESULT IN REDUCTION OF SURFACING QUANTITIES AND OVERALL SAVINGS IN CONSTRUCTION COST. THE MAIN OBJECTIVES WERE PARTIALLY ACCOMPLISHED, THAT IS, A COMPACTED SUBGRADE WAS PLOWED TO A DEPTH OF TWO FEET, MIXED WITH LIME WITH FAIRLY EQUAL DISTRIBUTION OF LIME IN THE TOP 16 INCHES WITH A LESSER AMOUNT IN THE BOTTOM 8 INCHES, AND MATERIAL WAS RECOMPACTED IN A SINGLE LIFT TO AN ACCEPTABLE DENSITY BASED ON UNTREATED SOIL; THE ENGINEERING CHARACTERISTICS OF THE SUBGRADE SOILS WERE ALTERED SUFFICIENTLY TO RESULT IN REDUCTION OF SURFACING QUANTITIES AND OVERALL SAVINGS IN CONSTRUCTION COST WITHOUT LOSS OF INTEGRITY OF THE STRUCTURE. THE RANDOM SAMPLING ALSO SHOWED A SIGNIFICANT ALTERATION OF THE SOIL IN THE TOP EIGHT INCHES, A LESSER EFFECT IN THE MIDDLE EIGHT INCHES AND GENERALLY LITTLE OR NO NO EFFECT IN THE LOWEST EIGHT INCHES. /AUTHOR/

  • Corporate Authors:

    Oklahoma Department of Highways

    Research and Development Division, Jim Thorpe Building
    Oklahoma City, OK  United States  73105
  • Authors:
    • Hartronft, B C
    • Buie, L D
    • Hicks, F P
  • Publication Date: 1969

Subject/Index Terms

Filing Info

  • Accession Number: 00232823
  • Record Type: Publication
  • Report/Paper Numbers: 131 pp
  • Files: TRIS, STATEDOT
  • Created Date: May 13 1970 12:00AM