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A Review on Improving Asphalt Pavement Service Life Using Gilsonite-Modified Bitumen

Al Hawesah, H, Sadique, MM, Harris, C, Al Nageim, H, Stopp, K, Pearl, H and Shubbar, A (2021) A Review on Improving Asphalt Pavement Service Life Using Gilsonite-Modified Bitumen. Sustainability, 13 (12). ISSN 2071-1050

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Hot mix asphalt has various benefits such as good workability and durability. It is one of the most general materials used as asphalt mixtures in road pavements. Asphalt mixtures and binders can be improved by modifying them with various additives. Gilsonite is a natural asphalt hydrocarbon which may be used as an additive to hot mix asphalt. It is used as an asphalt binder modifier (wet process) and an asphalt mixture modifier (dry process) to improve the properties of the mix. It provides the option of improved rheological properties, stability, strength rutting resistance and moisture sensitivity. This paper examines the current research relating to the use of gilsonite to improve the asphalt properties (binder and mixture). The rheological properties of the modified asphalt binders and mechanical properties of the modified asphalt mixtures will be reviewed. The influence of adding gilsonite individually or combined with other additives will be discussed. Furthermore, assessment of the environmental and economic perspectives of the studied asphalt along with some suggestions to improve the asphalt binders and mixtures will be explored.

Item Type: Article
Uncontrolled Keywords: 12 Built Environment and Design
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TE Highway engineering. Roads and pavements
Divisions: Civil Engineering & Built Environment
Publisher: MDPI
Date Deposited: 14 Jun 2021 10:19
Last Modified: 04 Sep 2021 05:21
DOI or ID number: 10.3390/su13126634
URI: https://researchonline.ljmu.ac.uk/id/eprint/15130
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