STRENGTH AND DURABILITY OF STABILIZED LAYERS UNDER EXISTING PAVEMENTS

THE RESULTS OF A FIELD AND LABORATORY STUDY TO EVALUATE THE STRENGTH AND DURABILITY OF STABILIZED LAYERS UNDER EXISTING PAVEMENTS ARE SUMMARIZED. EIGHT SITES IN DIFFERENT GEOGRAPHIC AND CLIMATIC REGIONS OF THE COUNTRY WERE TESTED, USING LIME AND CEMENT AS THE STABILIZING AGENTS. TEST RESULTS INDICATE THAT COMPACTION OF STABILIZED SUBGRADE WAS 90-100% OF MAXIMUM DENSITY AT THE SOUTHERN TEST SITES, BUT BELOW 90% AT THE NORTHERN TEST SITES. STABILIZED SUBGRADES SHOWED CONSIDERABLE INCREASE IN STRENGTH COMPARED TO UNSTABILIZED SUBGRADES. ALL BUT TWO TEST SECTIONS OF STABILIZED SUBGRADE GAINED STRENGTH WITH AGE. THERE WAS NO VISIBLE FAILURE OF THE PAVEMENT SYSTEMS AT THE SITES INVESTIGATED. THERE HAS BEEN A RELUCTANCE TO USE STABILIZED LAYERS IN A PAVEMENT SYSTEM DUE TO THE LACK OF DEMONSTRATION OF PERMANENCE OF STRENGTH WITH AGE AND AN INABILITY TO INCORPORATE THIS PHENOMENON INTO DESIGN CRITERIA. RESULTS OF THIS PROGRAM WILL DEMONSTRATE THE PERMANENCE OF STABILIZED SUBGRADES WITH AGE. /AUTHOR/

  • Supplemental Notes:
    • Tech Rept M-4, 18 PP
  • Corporate Authors:

    Army Construction Engineering Research Laboratory

    P.O. Box 9005
    Champaign, IL  USA  61826-9005
  • Authors:
    • Aufmuth, R E
  • Publication Date: 1970-10

Subject/Index Terms

Filing Info

  • Accession Number: 00233000
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 25 1971 12:00AM