e-ISSN 2231-8542
ISSN 1511-3701

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Investigation on Moisture Susceptibility and Rutting Resistance of Asphalt Mixtures incorporating Nanosilica Modified Binder

Ahmad Kamil Arshad, Khairil Azman Masri, Juraidah Ahmad and Mohamad Saifullah Samsudin

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

Keywords: Dense grade asphalt, moisture susceptibility, nanosilica, resilient modulus, rutting, Stone Mastic Asphalt

Published on: 05 Dec 2017

This paper presents the outcome of a laboratory investigation on mix design, resilient modulus, moisture susceptibility and rutting resistance of Stone Mastic Asphalt (SMA) and Dense Graded Asphalt (AC) that is incorporated with Nanosilica (NS) modified binder. Penetration Grade 60-70 (PEN60-70) types of binder were mixed with nanoparticles (NS) using concentration of 0wt%, 2wt%, 4wt% and 6wt% by weight of asphalt binder. The mixtures were tested for resilient modulus, indirect tensile strength and rutting, in order to evaluate the performance of NS-SMA and NS-AC. The results show that the existence of NS is capable of enhancing the performance of both asphalt mixtures, and the addition of NS decreases the susceptibility of moisture damage and provides better resistance against permanent deformation. Furthermore, the addition of 4wt% NS appears to be the most effective amount for the performance enhancement in AC and SMA mixtures.

ISSN 1511-3701

e-ISSN 2231-8542

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