Evaluation of Fatigue Life of CRM-Reinforced SMA and Its Relationship to Dynamic Stiffness
Joint Authors
Mashaan, Nuha Salim
Karim, Mohamed Rehan
Abdelaziz, Mahrez
Katman, Herda Yati
Ibrahim, Mohd Rasdan
Koting, Suhana
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-06-18
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
Fatigue cracking is an essential problem of asphalt concrete that contributes to pavement damage.
Although stone matrix asphalt (SMA) has significantly provided resistance to rutting failure, its resistance to fatigue failure is yet to be fully addressed.
The aim of this study is to evaluate the effect of crumb rubber modifier (CRM) on stiffness and fatigue properties of SMA mixtures at optimum binder content, using four different modification levels, namely, 6%, 8%, 10%, and 12% CRM by weight of the bitumen.
The testing undertaken on the asphalt mix comprises the dynamic stiffness (indirect tensile test), dynamic creep (repeated load creep), and fatigue test (indirect tensile fatigue test) at temperature of 25°C.
The indirect tensile fatigue test was conducted at three different stress levels (200, 300, and 400 kPa).
Experimental results indicate that CRM-reinforced SMA mixtures exhibit significantly higher fatigue life compared to the mixtures without CRM.
Further, higher correlation coefficient was obtained between the fatigue life and resilient modulus as compared to permanent strain; thus resilient modulus might be a more reliable indicator in evaluating the fatigue life of asphalt mixture.
American Psychological Association (APA)
Mashaan, Nuha Salim& Karim, Mohamed Rehan& Abdelaziz, Mahrez& Ibrahim, Mohd Rasdan& Katman, Herda Yati& Koting, Suhana. 2014. Evaluation of Fatigue Life of CRM-Reinforced SMA and Its Relationship to Dynamic Stiffness. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1051792
Modern Language Association (MLA)
Mashaan, Nuha Salim…[et al.]. Evaluation of Fatigue Life of CRM-Reinforced SMA and Its Relationship to Dynamic Stiffness. The Scientific World Journal No. 2014 (2014), pp.1-11.
https://search.emarefa.net/detail/BIM-1051792
American Medical Association (AMA)
Mashaan, Nuha Salim& Karim, Mohamed Rehan& Abdelaziz, Mahrez& Ibrahim, Mohd Rasdan& Katman, Herda Yati& Koting, Suhana. Evaluation of Fatigue Life of CRM-Reinforced SMA and Its Relationship to Dynamic Stiffness. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-11.
https://search.emarefa.net/detail/BIM-1051792
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051792