Optimisation of recoverable horizontal deformation and size ratio of compacted rubberized stone mastic asphalt based on rubber and binder contents using response surface methodology

Noura, Sajjad and Sabaeei, Abdulnaser and Ismat, Gailan and Mirzapour, Sina and Muniandi, Ratnasamy and Al-Mansob, Ramez and Carter, Alan (2022) Optimisation of recoverable horizontal deformation and size ratio of compacted rubberized stone mastic asphalt based on rubber and binder contents using response surface methodology. In: The First International Symposium on Civil Engineering and Environmental Research, 1-2 November 2021, Online.

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Abstract

The use of waste materials such as rubber powder in stone mastic asphalt (SMA) has improved the structural performance to some extent, and the research on the improvement is still ongoing. Rubberised stone mastic asphalt has shown good performance in terms of resilient modulus. In this research, response surface methodology was utilised to increase the efficiency in determining the recoverable horizontal deformation and samples compaction level using optimum rubber and binder content. Thirty-one tests were performed on different binders and rubber contents, and the recoverable horizontal deformation and ratio of height to the diameter of Marshall compacted samples were recorded. The ANOVA analysis showed a low P-value with a high correlation coefficient, and the optimisation showed that adding almost 3% rubber powder to SMA could improve the compaction level and desirable recoverable deformation.

Item Type:	Conference or Workshop Item (Plenary Papers)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA401 Materials of engineering and construction T Technology > TE Highway engineering. Roads and pavements
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Civil Engineering
Depositing User:	Dr. Ramez Al-Mansob
Date Deposited:	12 Apr 2022 12:17
Last Modified:	12 Apr 2022 12:17
URI:	http://irep.iium.edu.my/id/eprint/97599

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