ADHESION TEST FOR ROAD SURFACE DRESSING BINDERS

A STUDY HAS BEEN MADE OF THE ADHESION OF CHIPPINGS TO A FILM OF ROAD TAR, SUPPORTED ON A BASE PLATE, UNDER CONDITIONS SIMILAR TO THOSE ENCOUNTERED IN SURFACE DRESSING, BUT WITHOUT INTERLOCK OF STONE PARTICLES. CHIPPINGS ARE REMOVED BY INERTIAL STRESSES SET UP IN THEM WHEN A CAREFULLY REGULATED BLOW IS APPLIED TO THE BASE PLATE. A CRITICAL ADHESION TEMPERATURE, ABOVE WHICH CHIPPINGS SHOULD BE APPLIED TO ROAD TAR, HAS BEEN SHOWN TO BE ABOUT 32 DEG. C BELOW THE EQUIVISCOUS TEMPERATURE (E.V.T.) FOR CLEAN, DRY BASALT CHIPPINGS; A LOWER VALUE IS SHOWN TO APPLY IN THE CASE OF PVC-MODIFIED TAR. RESULTS INDICATE THAT THE UNIT REASONABLY SIMULATES SERVICE CONDITIONS, AND ITS USE IS PROPOSED FOR ADDITIONAL STUDIES. /AUTHOR/

  • Supplemental Notes:
    • Vol 20, No 11, PP 329-333
  • Corporate Authors:

    Academic Press Incorporated

    24-28 Oval Road
    London NW1 7DX,   England 
  • Authors:
    • Briggs, D K
    • Croft, J A
  • Publication Date: 1970-11

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00211570
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Feb 12 1971 12:00AM