Dynamic properties and fatigue life of stone mastic asphalt mixtures reinforced with waste tyre rubber

Mashaan, N.S. and Ali, A.H. and Koting, S. and Karim, M.R. (2013) Dynamic properties and fatigue life of stone mastic asphalt mixtures reinforced with waste tyre rubber. Advances in Materials Science and Engineering, 2013. pp. 1-9. ISSN 1687-8434

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Abstract

Today, virgin polymer modified asphalt mixes are comparatively more expensive for road pavement. One way to reduce the expense of such construction and to make it more convenient is the application of inexpensive polymer, such as waste polymer. The primary aim of this study was to investigate the effect of adding waste tyre rubber (crumb rubber modifier (CRM)) on the stiffness and fatigue properties of stone mastic asphalt (SMA) mixtures. Various percentages of waste CRM with size of 0.60 mm were added to SMA mixtures. Indirect tensile stiffness modulus test was conducted at temperatures of 5, 25, and 40°C. Indirect tensile fatigue test was conducted at three different stress levels (2000, 2500, and 3000 N). The results show that the stiffness modulus of reinforced SMA samples containing various contents of CRM is significantly high in comparison with that of nonreinforced samples, and the stiffness modulus of reinforced samples is in fact less severely affected by the increased temperature compared to the nonreinforced samples. Further, the results show that CRM reinforced SMA mixtures exhibit significantly higher fatigue lives compared to the nonreinforced mixtures help in and promotion of sustainable technology by recycling of waste materials in much economical and environmental-friendly manner. © 2013 Nuha Salim Mashaan et al.

Item Type: Article
Additional Information: 246IJ Times Cited:0 Cited References Count:26
Uncontrolled Keywords: Crumb rubber modifiers, Environmental-friendly, Fatigue properties, Increased temperature, Indirect tensile fatigue, Recycling of wastes, Stone mastic asphalts, Sustainable technology, Fatigue of materials, Fatigue testing, Mastic asphalt, Polymers, Reinforcement, Rubber, Stiffness, Mixtures
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: Faculty of Engineering
Depositing User: Mr Jenal S
Date Deposited: 07 Apr 2014 02:19
Last Modified: 07 Apr 2014 02:19
URI: http://eprints.um.edu.my/id/eprint/8797

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