ASPHALT TECHNOLOGY FOR IN-PLACE SURFACE RECYCLING USING THE HEAT REFORMING PROCESS. PROCEEDINGS OF THE THIRTY-FOURTH ANNUAL CONFERENCE OF THE CANADIAN TECHNICAL ASPHALT ASSOCIATION, HALIFAX, NOVA SCOTIA, 1989

The heat reforming process for in-place, hot rehabilitation of deteriorated asphalt pavements consists of a heating system (lpg infrared preheaters) which can heat the pavement up to a depth of 50 mm, and a reforming system (reform, remix and/or repave options) which improves the pavement quality through rejuvenation and/or placing a new hot mix overlay, from very thin to 50 mm in thickness, all in one pass. The main asphalt technology aspects of the heat reforming process are 1) determining the overall suitability of the aged, cracked and/or rutted pavement for processing, 2) testing the existing pavement to determine the necessary rejuvenator application rate, and 3) monitoring the quality of the in-place, hot recycled mix and any new not mix. No problems have been encountered in meeting 'softening' requirements for aged pavements. The key aspects of cost effective, technically sound, in-place hot rehabilitation are described through project experience and the associated asphalt technology. (a) for the covering abstract of the conference see IRRD 807386.

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    Multiscience Publications Incorporated

    555 Legendre E, Suite 20
    Montreal, PQ  Canada 
  • Publication Date: 1989

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  • Accession Number: 00498281
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • ISBN: 0-921-317-33-6
  • Files: ITRD, TRIS
  • Created Date: Sep 30 1990 12:00AM