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

• Serial:
  • Journal of Applied Chemistry

Subject/Index Terms

• TRT Terms: Adhesion; Basalt; Binders; Chippings; Pavement surface course; Stone; Stresses; Structural plates; Tar; Temperature; Testing
• Uncontrolled Terms: Plates
• Old TRIS Terms: Chips; Interlocking
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

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