Faisal Mohammed Salah, Ramadhansyah Putra Jaya, Azman Mohamed, Norhidayah Abdul Hassan, Nurul Najihah Mad Rosni, Abdullahi Ali Mohamed, Agussabti
The influence of styrene butadiene rubber (SBR) on asphaltic concrete properties at different aging conditions was presented in this study. These aging conditions were named as un-aged, short-term, and long-term aging. The conventional asphalt binder of penetration grade 60/70 was used in this work. Four different levels of SBR addition were employed (i.e., 0 %, 1 %, 3 %, and 5 % by binder weight). Asphalt concrete mixes were prepared at selected optimum asphalt content (5 %). The performance was evaluated based on Marshall Stability, resilient modulus, and dynamic creep tests. Results indicated the improving stability and permanent deformation characteristics that the mixes modified with SBR polymer have under aging conditions. The result also showed that the stability, resilient modulus, and dynamic creep tests have the highest rates compared to the short-term aging and un-aged samples. Thus, the use of 5 % SBR can produce more durable asphalt concrete mixtures with better serviceability. © 2017 Author(s).
Faculty of Civil Engineering, Universiti Teknologi Malaysia, Johor Bahru, 81310, Malaysia; Faculty of Civil Engineering, Universiti Teknologi MARA, Sarawak, 94300, Malaysia; Faculty of Engineering, University of Nottingham, Malaysia Campus, Jalan Broga, Semenyih, Selangor Darul Ehsan, 43500, Malaysia; Faculty of Agricultural, Syiah Kuala of University, Banda Aceh, 23111, Indonesia
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