PREDICTING THE FRACTURE OF ASPHALT MIXES BY THERMAL STRESSES

Laboratory experiments have shown that when an asphalt mix is constrained and cooled, it fractures at a temperature that is critical for the binder. This critical temperature depends on the binder properties as measured by penetrations at two temperatures, and the relationship is presented in the form of a nomograph. A low temperature test for bitumen, in which the sample is constrained by glass plates, is shown to be a convenient substitute for tests on asphalt mixes. (A) /TRRL/

• Corporate Authors:

  Institute of Petroleum

  61 New Cavendish Street
  London W1M 8AR,   England 
• Authors:
  • Hills, J F
• Publication Date: 1974

Language

• English

Media Info

• Features: Figures; Photos; References; Tables;
• Pagination: 11 p.

Subject/Index Terms

• TRT Terms: Binders; Bitumen; Bituminous mixtures; Cooling; Forecasting; Fracture mechanics; Low temperature tests; Pendulum tests; Temperature; Test procedures; Thermal stresses
• ITRD Terms: 4948: Binder; 4963: Bitumen; 4967: Bituminous mixture; 6711: Cooling (mater); 5520: Failure; 132: Forecast; 6285: Penetration; 5575: Stress (in material); 6722: Temperature
• Subject Areas: Highways; Materials;

Filing Info

• Accession Number: 00126259
• Record Type: Publication
• Source Agency: Transport and Road Research Laboratory (TRRL)
• Report/Paper Numbers: IP 74-014 R&D Rept.
• Files: ITRD, TRIS
• Created Date: Apr 21 1976 12:00AM