PROPERTIES AND BEHAVIOR OF FORMED BITUMEN MIXTURES FOR ROAD BUILDING

FOAMED BITUMEN IS FINDING INCREASED ACCEPTANCE IN AUSTRALIA AS A MEANS OF STABILIZING AND STRENGTHENING MARGINAL QUALITY PAVEMENT MATERIALS. THE PAPER SUMMARIZES THE BASIC REQUIREMENTS FOR SATISFACTORY PERFORMANCE OF ROAD PAVEMENT MATERIALS, WITH PARTICULAR REFERENCE TO THE SPECIAL REQUIREMENTS FOR BITUMEN-STABILIZED MATERIALS. DEVELOPMENT OF A LABORATORY TEST SYSTEM TO ADEQUATELY DESCRIBE PAVEMENT MATERIALS PRODUCED BY THE INCORPORATION OF FOAMED BITUMEN WAS UNDERTAKEN. THIS SYSTEM WAS BASED ON USE OF THE HVEEM STABILOMETER AND AIMED AT CLEARLY DEFINING THE EFFECTIVE RANGE OF BINDER CONTENT FOR SIGNIFICANT IMPROVEMENT IN THE MATERIALS' PERFORMANCE. IT ALSO PROVIDES INFORMATION TO ALLOW ASSESSMENT OF THE OPTIMUM BINDER CONTENT BOTH FOR THE PARTICULAR MATERIAL, AND FOR A GIVEN PAVEMENT SERVICE CONDITION. RESULTS OBTAINED USING THIS SYSTEM ARE GIVEN TO SHOW THE DIFFERENT POTENTIAL OF VARIOUS TYPES OF MATERIAL USED WITH THE FOAMED BITUMEN PROCESS. THE PROPERTIES OF THE LABORATORY MIXTURES REPORTED ON ARE DISCUSSED AGAINST THE PERFORMANCE OF THE RESULTING FIELD MIXTURES OBSERVED TO DATE. TENTATIVE TEST CRITERIA ARE GIVEN BASED ON THE LIMITED FIELD PERFORMANCE OBSERVATIONS AVAILABLE TO DATE. /ARRB/

Media Info

  • Serial:
    • Volume: 5
    • Issue Number: Pt5

Subject/Index Terms

Filing Info

  • Accession Number: 00233238
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Apr 2 1972 12:00AM