Permanent Deformation in Asphaltic Materials

by Geoffrey E. Blight, (M.ASCE), Prof. of Construction Materials; Univ. of Witwatersrand, Johannesburg, South Africa,

Serial Information: Transportation Engineering Journal of ASCE, 1974, Vol. 100, Issue 1, Pg. 263-276

Document Type: Journal Paper


This review investigates traffic load-associated causes of permanent deformation in asphaltic materials. The environmental effects of temperature and moisture are also considered insofar as they affect the deformation process. Deformation in nonasphaltic layers which may contribute to deformation of the asphaltic layers they support is also given consideration. The following aspects of permanent deformation in asphalt pavements are specifically considered: (1) criteria for unacceptable load-associated deformation of a road surface; (2) susceptibility of materials and pavements to permanent deformation; (3) response of materials to repeated loading; and (4) prediction of rut depth-time or rut depth-traffic count relationships.

Subject Headings: Pavement rutting | Asphalt pavements | Construction materials | Dead loads | Deformation (mechanics) | Repeated loads | Traffic management | Environmental issues

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