Volume 8, Issue 2, June 2019, Page: 48-55
Evaluation of the Effect of Polystyrene on the Performance of Asphalt Mixes
Aftab Akbar, Civil Engineering from Department of Civil Engineering, Sarhad University of Science & Information Technology, Peshawar, Pakistan; Transportation Engineering, Sarhad University of Science and Information Technology, Peshawar, Pakistan
Kashif Akbar, Department of Civil Engineering, Sarhad University of Science and Information Technology, Peshawar, Pakistan
Naveed Khan, Department of Civil Engineering, Sarhad University of Science and Information Technology, Peshawar, Pakistan
Afaq Ali, Department of Civil Engineering, Sarhad University of Science and Information Technology, Peshawar, Pakistan
Abdul Karim, Department of Civil Engineering, Sarhad University of Science and Information Technology, Peshawar, Pakistan
Fayaz-ur-rehman, Department of Civil Engineering, Sarhad University of Science and Information Technology, Peshawar, Pakistan
Received: Nov. 7, 2018;       Accepted: Dec. 28, 2018;       Published: Apr. 26, 2019
DOI: 10.11648/j.am.20190802.12      View  261      Downloads  82
Abstract
Asphalt, sometimes known as Bitumen is a sticky, black and highly viscous liquid or semi-solid form of petroleum. It is mainly found in natural deposits or may be a refined product. The primary use (70%) of asphalt/bitumen is in road construction, where it is used as the glue or binder mixed with aggregate particles to create asphalt concrete. The reason for its extensive use is that asphalt is exceptionally rigid and durable; it flings sufficient flexibility to fit defect in underlying surfaces. Replacement/reprocessing and removal of damaged asphalt is a simple and comparatively easy operation. The asphalt is also a hundred percent recyclable product. Ordinary asphalt pavement has a limited amount of stress bearing capacity. Asphalt pavements are also affected by the surroundings and climate. The usual pavement distresses include: cracking; disintegration, distortion, skidding hazards; and surface treatment distresses. In this modern age, civil engineering constructions have their own structural and durability requirements, every structure has its own intended purpose and hence to meet this purpose, modification in traditional asphalt has become mandatory. It has been found that different types of additives added in specific percentage to asphalt improves the physical properties i.e. resistance of cracking and strengthening of asphalt. In this project, we have carried out test on asphalt with Polystyrene as an additive to check the influence of these additives on strength of Asphalt. According to various research papers, it has been found that addition of Polystyrene gives strength to asphalt. Hence, in this project we were interested in finding out the optimum quantity of polystyrene required achieving the maximum strength. From the exhaustive and extensive experimental work it was found that with increase in Polystyrene content in asphalt mix up to a limit, there was a tremendous increase in strength. At 5% Polystyrene content maximum stability achieved was 10.41 KN and flow was 3.46 mm, but as the percentage of Polystyrene increased, a decrease in the strength occurs. Hence the optimum amount of Polystyrene is 5%.
Keywords
Bitumen, Reclaimed, Pavement, Distresses, Polystyrene, Modifiers, Bearing Capacity
To cite this article
Aftab Akbar, Kashif Akbar, Naveed Khan, Afaq Ali, Abdul Karim, Fayaz-ur-rehman, Evaluation of the Effect of Polystyrene on the Performance of Asphalt Mixes, Advances in Materials. Vol. 8, No. 2, 2019, pp. 48-55. doi: 10.11648/j.am.20190802.12
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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