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Effect of Batu Pahat Soft Clay (BPSC) Concentrations on the Physical and Rheological Properties of Asphalt Binder

Mohd Idrus Mohd Masirin, Allam Musbah Al Allam and Ahmed Suliman Bader Ali

Pertanika Journal of Tropical Agricultural Science, Volume 25, Issue S, May 2017

Keywords: Amplitude sweep, Asphalt binder, DSR, physical properties, soft clay, superpave parameter (rutting)

Published on: 01 Nov 2017

The major aim of this research was to investigate the addition of BPSC on the physical and rheological properties of asphalt binder. In this study, addition of five different percentages of BPSC compositions were studied, namely (2, 4, 6 and 8%). The impact of modifier on the rheological and physical properties was determined using conventional tests, such as softening point, ductility and penetration, and measurements from a dynamic shear rheometer. Based on the results, it was observed that the addition of BPSC has a significant impact on the rheological properties of asphalt binder and would improve rutting resistance at high temperatures. Meanwhile, results related to physical properties indicated that a decrease in penetration and increase in softening points results in stiffness of BPSC. The results showed that BPSC reduced temperature susceptibility and increased stiffness and elastic behaviour in comparison to unmodified asphalt binder. This means BPSC would increase the resistance of permanent deformation (rutting). Finally, BPSC could be considered as an appropriate additive to modify the properties of asphalt binder.

ISSN 1511-3701

e-ISSN 2231-8542

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