Using advanced materials of granular BRA modifier binder to improve the flexural fatigue performance of asphalt mixtures
MetadataShow full item record
© 2015 The Authors. Published by Elsevier Ltd. The objective of this research is to determine the effect on the flexural fatigue performance of asphalt mixtures of using granular Buton rock asphalt (BRA) modifier binder. A repeated flexural bending test under the controlled-strain mode of loading in accordance with Austroads AG:PT/T233 test method was conducted to examine fatigue behaviour of the BRA modified asphalt mixtures and the unmodified asphalt mixtures (as control mixtures) for a dense grading of 10 mm. Beam specimens were tested at the temperatures of 20°C and three different peak tensile strain (400, 600 and 800 µe) and used classical and energy-stiffness ratio approach to analyse fatigue life of the asphalt mixtures. According to the test results, the fatigue lifes of the BRA modified asphalt mixtures were higher than that for the unmodified asphalt mixtures at the test temperature and tensile strain. Moreover, based on the initial flexure stiffness and phase angle values, BRA modified asphalt mixtures showed more elastic and less viscous behaviour than unmodified mixtures.
This open access article is distributed under the Creative Commons license http://creativecommons.org/licenses/by-nc-nd/4.0/
Showing items related by title, author, creator and subject.
Lim, R.; Chegenizadeh, Amin; Nikraz, Hamid (2016)A series of experiments has been conducted at Curtin University, Australia to explore the influence of different conventional binders used in asphalt mixes on their fatigue performance. Fatigue cracking is one of the key ...
Evaluation of Permanent Deformation of BRA Modified Asphalt Paving Mixtures Based on Dynamic Creep Test AnalysisKarami, M.; Nega, A.; Mosadegn, A.; Nikraz, Hamid (2016)The main objective this study is to evaluate the permanent deformation of buton rock asphalt (BRA) modified asphalt paving mixtures using dynamic creep test so that long term deformation behavior of asphalt mixtures can ...
Karami, M.; Nikraz, Hamid; Sebayang, S.; Irianti, L. (2018)The objective of this research is to determine the potential effect on the resilient modulus of asphalt mixtures of using granular Buton Rock Asphalt (BRA) modified binder. The indirect tensile stiffness modulus (ITSM) ...