REDUCTION OF OXIDATIVE HARDENING OF ASPHALTS BY TREATMENT WITH HYDRATED LIME -- A MECHANISTIC STUDY

The paper reports on a study to compare the susceptibility of the untreated and lime-treated asphalts to oxidative hardening when subjected to laboratory aging and to suggest a mechanism explaining the action of lime. Four different asphalts were tested, along with four aggregate types, and solvents and hydrated lime. Testing procedures are outlined, and the discussion of results goes into such things as the effect of lime treatment and aggregate type on resilient modulus, chemistry of lime action, mechanism of lime action, and others.

• Supplemental Notes:
  • Technical Session, New Orleans, February 16-18, 1976.
• Corporate Authors:

  University of Minnesota, Minneapolis

  155 Experimental Engineering Building
  Minneapolis, MN  United States  55455
• Authors:
  • Plancher, H
  • Green, E L
  • Petersen, J C
• Conference:
  • Association of Asphalt Paving Technologists Proc
• Publication Date: 1976

Media Info

• Features: References;
• Pagination: p. 1-24
• Serial:
  • Volume: 45

Subject/Index Terms

• TRT Terms: Aggregates; Asphalt; Calcium hydroxide; Calcium oxide; Concrete hardening; Hardness; Modulus of resilience; Oxidation; Solvents
• Old TRIS Terms: Aging; Hydrated; Oxidation reduction
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00158371
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Dec 27 1977 12:00AM