AN IMPACT TEST FOR ROAD BINDERS

A STUDY HAS BEEN MADE OF THE ENERGY ABSORBED IN RUPTURING A ROAD BINDER FILM IN A PENDULUM IMPACT MACHINE. AT HIGH TEMPERATURES THE ENERGY IS ABSORBED BY VISCOUS TRACTION, AT LOW TEMPERATURES BY ELASTIC STRAIN ENERGY, AND IN THE INTERMEDIATE VISCO-ELASTIC REGION THE ENERGY RISES TO A MARKED MAXIMUM PROVIDING OPTIMUM CONDITIONS FOR STONE RETENTION BY THE BINDER. A STANDARD TEST AT -10 DEGREES GIVES AN ENERGY VALUE, UNDER CONDITIONS OF BRITTLE FRACTURE, WHICH IS DEMONSTRATED TO BE SUITABLE FOR COMPARING TARS OF KNOWN EQUIVISCOUS TEMPERATURES AND WHICH REFLECTS THE WIDTH OF THE VISCO-ELASTIC PEAK, GIVING A MEASURE OF RESISTANCE OF BRITTLE FAILURE OF THE BINDER. /RRL/AUTHOR/

  • Supplemental Notes:
    • Vol 19, No 6, PP 157-61, 4 FIG, 5 TAB, 9 REF
  • Corporate Authors:

    Academic Press Incorporated

    24-28 Oval Road
    London NW1 7DX,   England 
  • Authors:
    • Briggs, D K
  • Publication Date: 1969-6

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00211211
  • Record Type: Publication
  • Source Agency: Road Research Laboratory /UK
  • Files: TRIS
  • Created Date: Mar 25 2000 12:00AM