PROBLEMS IN THE USE OF IRON-RICH LATERITES IN THE ROADWAY STRUCTURE - S.E. THAILAND

SOIL SURVEY WORK FOR A COASTAL HIGHWAY IN S. E. THAILAND REVEALED AN EXTENSIVE AREA IN WHICH LATERITE AND LATERITIC SOIL PREDOMINATE. THE DEVELOPMENT OBSERVED IS CHARACTERISTIC OF THE LATERITES OF THAILAND IN GENERAL. FOR PROJECT PURPOSES, DIFFERENTATION OF THE TERMS "LATERITIC SOIL" AND "LATERITE" WAS CONSIDERED NECESSARY. DETRIMENTAL ENGINEERING PROPERTIES OF THE LATERITIC GRANULAR MATERIALS ENCOUNTERED, ARE THEIR POTENTIALITY FOR DEGRADING UNDER MECHANICAL STRESS, AND THEIR PLASTICITY. THESE PROPERTIES ARE PRIMARILY RESPONSIBLE FOR UNSATISFACTORY PERFORMANCE OF EXISTING ROADS IN THE AREA WHERE LATERITIC GRANULAR MATERIALS ARE USED IN THE PAVEMENT STRUCTURE. IN AN EFFORT TO BRING THE MATERIALS WITHIN PROJECT REQUIREMENTS, STABILIZATION TECHNIQUES WERE STUDIED IN THE LABORATORY. OF THE FOUR TECHNIQUES TRIED, ONLY CEMENT TREATMENT AND BLENDING WITH NON-LATERITIC UNIFORM SAND APPEARED SATISFACTORY. /RRL/A/

Media Info

  • Serial:
    • Issue Number: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00232129
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Sep 9 1970 12:00AM