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Laboratory performance evaluation of waste tire rubber (WTR) and ethylene-vinyl acetate (EVA)-modified asphalt mixtures.
- Source :
-
International Journal of Pavement Engineering . November-December 2023, Vol. 24 Issue 1, p1-11. 11p. - Publication Year :
- 2023
-
Abstract
- This paper aims to explore the performance and economy of asphalt mixture with waste tire rubber (WTR)/ethylene-vinyl acetate (EVA) compound-modified asphalt. In this paper, five kinds of WTR/EVA asphalt mixture were selected as research targets, 70# base asphalt mixture and 5% styrene–butadiene–styrene (SBS) asphalt mixture were compared. Laboratory test results showed that WTR and EVA could significantly improve the performance of the asphalt mixture. The rutting resistance and anti-ageing ability of 15%WTR + 4%EVA asphalt mixture were superior to the 5% SBS asphalt mixture, and the anti-cracking ability and water stability were extremely close between them. Furthermore, the analysis of variance results revealed that WTR and EVA had a significant effect on asphalt mixture performance, the effect of EVA was more obvious than WTR. According to the economy analysis, the application of WTR/EVA-modified asphalt could significantly reduce construction costs, the material cost of 15%WTR + 4%EVA asphalt mixture was about 9.3% lower than 5% SBS asphalt mixture. As summarised above, WTR/EVA compound-modified asphalt mixture was an economical and environmentally pavement construction material due to its superior performance and lower cost, and 15%WTR + 4%EVA was the optimal combination dosage for asphalt mixture. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10298436
- Volume :
- 24
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- International Journal of Pavement Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 174390001
- Full Text :
- https://doi.org/10.1080/10298436.2023.2224914