Evaluation of Permanent Deformation of BRA Modified Asphalt Paving Mixtures Based on Dynamic Creep Test Analysis
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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 be characterized. The dynamic creep test was conducted on unmodified and BRA modified asphalt mixture using UTM25 machine. Asphalt cement of C170 from a regional supplier in Western Australia was used as the base asphalt binder for unmodified asphalt mixture; and BRA modified asphalt mixtures were made by substituting the base asphalt with 10, 20, and 30% (by weight of total asphalt binder) natural binder continuing granular BRA modified binder. The granular (pellets) BRA modified binder with a diameter of 7-10 mm was produced and extracted according the Australia Standard. Crushed granite was taken from a local quarry of the region; and dense graded for both unmodified and BRA modified asphalt mixture with the nominal size of 10 mm was used. The results of this analysis showed that BRA modified had a good performance as compared with unmodified asphalt mixtures, and increase in the content modified binder to 10%, 20%, and 30% resulted in decrease of the total permanent strain.
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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) ...
Using advanced materials of granular BRA modifier binder to improve the flexural fatigue performance of asphalt mixturesKarami, M.; Nikraz, Hamid (2015)© 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. ...
Karami, M.; Nikraz, Hamid (2015)© 2015 Taylor & Francis Group, London.This study is aimed to evaluate the effect of using a granular Buton RockAsphalt (BRA) modifier binder for improving the stiffness modulus performance of asphalt mixtures. The stiffness ...