Effects of crumb rubber and styrene-butadiene rubber additives on the properties of asphalt binder and the Marshall performance properties of asphalt mixtures

Main Article Content

DOI

Diyar Khan

diyar.khan@polsl.pl

https://orcid.org/0000-0002-5810-9012
Basit Ali

2021021904@chd.edu.cn

Peilong Li

lipeilong@chd.edu.cn

Mohd Rosli Mohd Hasan

cerosli@usm.my

https://orcid.org/0000-0001-6922-4158
Fazli Karim

engr_fazli@yahoo.com

https://orcid.org/0000-0002-5773-8562
Noman Khan

nomi38899@gmail.com

https://orcid.org/0009-0007-3931-7119

Abstract

The primary aim of this study is to evaluate the impact of incorporating crumb rubber (CR) and styrene-butadiene rubber (SBR) additives, ranging from 0% to 5% by weight of bitumen, on the performance of a bituminous concrete mixture using the wet process. Laboratory experiments, including the Marshall test, were conducted to establish the optimum bitumen content (OBC) for the hot mix. The study focuses on determining the optimal proportions of CR and SBR to achieve maximum strength. The results show that increasing the proportions of both CR and SBR leads to significant improvements in strength, with the maximum stability recorded at 16.14 kN and a flow of 1.23 mm for a mix containing 5% CR and 4% SBR. The findings further suggest an inverse relationship between CR content and strength, while an increasing SBR content enhances strength. Consequently, the optimal proportions for incorporating CR and SBR additives are identified as 5% and 4%, respectively.

Keywords:

Crumb rubber, styrene-butadiene rubber, fly ash, hot mix asphalt, Marshall properties

References

Article Details

Khan, D. (2023) “Effects of crumb rubber and styrene-butadiene rubber additives on the properties of asphalt binder and the Marshall performance properties of asphalt mixtures”, Budownictwo i Architektura, 22(4), pp. 147–161. doi: 10.35784/bud-arch.5499.