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Title:

MICROWAVE HEATING OF ASPHALT PAVING MATERIALS (WITH DISCUSSION)

Accession Number:

00739806

Record Type:

Component

Availability:

Association of Asphalt Paving Technologists

400 Selby Avenue, Suite I
St Paul, MN 55102 USA

Abstract:

For many years the concept of heating with microwave energy has been intriguing to highway engineers, but no commercial applications have been forthcoming. More recently, however, several patents have been issued and prototype equipment has demonstrated the feasibility of microwave heating of asphalt paving materials, with emphasis being placed on recycling. One thrust has been toward over-the-road heating applications such as for shoulders, longitudinal crack repair, rut repair, and pothole patching. The other is aimed at heating reclaimed asphalt pavement (RAP) in a microwave tunnel and competes with conventional central plant recycling, but with several added twists such as minimal air pollution and aging of the asphalt. This paper reviews over-the-road and central plant microwave heating projects, discusses the microwave heating concept and microwave principles, reviews microwave heating of pavement materials in the laboratory, and comments on strength and bonding enhancement in asphalt paving materials heated by microwaves. Concluding comments concern the implications and applications of microwave heating.

Language:

English

Corporate Authors:

Association of Asphalt Paving Technologists

400 Selby Avenue, Suite I
St Paul, MN 55102 USA

Authors:

Terrel, R L
Al-Ohaly, A

Editors:

E L Skok Jr

Pagination:

p. 454-491

Publication Date:

1987

Features:

Figures (33) ; Photos (2) ; References (27) ; Tables (4)

Old TRIS Terms:

Subject Areas:

Construction; Highways; Maintenance and Preservation; Materials; I31: Bituminous Binders and Materials; I52: Construction of Pavements and Surfacings; I61: Equipment and Maintenance Methods

Files:

TRIS

Last Modified:

Sep 2 1997 12:00AM

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