Karami, Muhammad and Nega, Ainalem and Musadegh, Ahdyeh and Nikraz, Hamid
(2016)
Evaluation of Permanent Deformation of BRA Modified Asphalt Paving Mixtures Based on Dynamic Creep Test Analysis.
Advanced Engineering Forum, 16.
pp. 69-81.
ISSN 2234-991X
Abstract
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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Evaluation of Permanent Deformation of BRA Modified Asphalt Paving Mixtures Based on Dynamic Creep Test Analysis. (deposited 12 Jun 2017 04:36)
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