EFFECT OF MICROWAVE HEATING ON ADHESION AND MOISTURE DAMAGE OF ASPHALT MIXTURES

Microwave energy has been demonstrated to be capable of heating pavements rapidly, uniformly, and to depths of up to 5 in. without overheating the surface. Microwave treatment of asphalt mixtures is believed to have the potential of improving asphalt adhesion to aggregate. Presented in this paper is the work that was carried out to investigate this aspect of microwave heating in two ways. First, possible mechanisms by which adhesion improvement may occur when mixtures are exposed to microwave energy are discussed. Second, results of resilient modulus and split tension tests conducted on mixtures that were prepared in the laboratory using a convection oven and a kitchen-type microwave oven are reported. The study involved preparing three groups of mixtures: plain, virgin with an antistripping additive, and artificially aged materials. Test results indicate that microwave energy treatment of asphalt mixtures improves their adhesion and their resistance to water damage.

• Record URL:
  http://onlinepubs.trb.org/onlinepubs/trr/1988/1171/1171-004.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=EFFECT+OF+MICROWAVE+HEATING+ON+ADHESION+AND+MOISTURE+DAMAGE+OF+ASPHALT+MIXTURES&author=A.+Al-Ohaly&author=R.+Terrel&publication_year=1988
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309047102
• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1171, Asphalt Materials and Mixtures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Al-Ohaly, A A
  • Terrel, R L
• Publication Date: 1988

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 27-36
• Monograph Title: Asphalt materials and mixtures
• Serial:
  • Transportation Research Record
  • Issue Number: 1171
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Adhesion; Asphalt mixtures; Heating (Structures); Improvements; Loss and damage; Microwaves; Modulus of resilience; Moisture content; Tensile strength
• Old TRIS Terms: Microwave heating; Test results
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00483620
• Record Type: Publication
• ISBN: 0309047102
• Files: TRIS, TRB, ATRI
• Created Date: May 31 1989 12:00AM