Asphalt-rubber gap-graded mixture design practices: a state-of-the-art research review and future perspective
The use of asphalt-rubber gap-graded (AR-Gap) mix as a pavement material has gained importance due to its environmental benefits and enhanced performance. This paper reviews the current state-of-the-art pertinent to AR-Gap mix design research and practice. The various mix design practices of AR-Gap mixes adopted by various agencies were summarised. Furthermore, the performance characteristics of AR-Gap mixes such as drain-down, moisture susceptibility, permanent deformation, and fatigue cracking were also documented. The field performances of AR-Gap pavements were also reviewed. Due to an increased use of AR-Gap as a pavement material owing to its several benefits, there exists an extensive scope for further research to understand the material better, which will make it a promising sustainable pavement material in future. Furthermore, considering that AR-Gap mix design and construction technologies are yet to be fully implemented worldwide, the present work aims to be an up-to-date reference to provide benefits and issues associated with the AR-Gap mixes. However, based on the various research questions emanating out of the review process, it was adjudged that there is still further scope for advancing the current state-of-the-art pertaining to the AR-Gap mix design, and the contribution of rubber inclusions in assisting the mix’s augmented performance.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/14680629
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Supplemental Notes:
- Abstract reprinted with permission of Taylor & Francis.
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Authors:
- Venudharan, Veena
- Biligiri, Krishna Prapoorna
- Sousa, Jorge B
- Way, George B
- Publication Date: 2017-5
Language
- English
Media Info
- Media Type: Web
- Features: References;
- Pagination: pp 730-752
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Serial:
- Road Materials and Pavement Design
- Volume: 18
- Issue Number: 3
- Publisher: Taylor & Francis
- ISSN: 1468-0629
- EISSN: 2164-7402
- Serial URL: http://www.tandfonline.com/loi/trmp20
Subject/Index Terms
- TRT Terms: Asphalt rubber; Crumb rubber; Gap grading; Mix design; Pavement performance; State of the art
- Subject Areas: Design; Highways; Materials; Pavements;
Filing Info
- Accession Number: 01635436
- Record Type: Publication
- Files: TRIS
- Created Date: Mar 22 2017 3:00PM