Abstract:
Paper presented at the 23rd Annual Southern African Transport Conference 12 - 15 July 2004 "Getting recognition for the importance of transport", CSIR International Convention Centre, Pretoria, South Africa. The aging of asphalt binder is an important factor to asphalt pavement service property. In
this paper, rolling thin film oven (RTFO) is used to simulate the short-term age of asphalt
binder during construction, then pressure aging vessel (PAV) is used to age the RTFO test
residues for different hours. The authors studied the effects of aging on viscoelastic
performance of asphalt binder by using bending beam rheometer and dynamic shear
rheometer. The results indicate that the aging of asphalt binder will decline its viscous
performance and enhance its elastic performance, so its resistance to deformation will be
enhanced while its anti-fatigue cracking capacity will decrease.
Description:
This paper was transferred from the original CD ROM created for this conference. The material on the CD ROM was published using Adobe Acrobat technology. The original CD ROM was produced by Document Transformation Technologies Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: doctech@doctech.co.za URL: http://www.doctech.co.za
