Aging and rheological properties of latex and crumb rubber modified bitumen using dynamic shear rheometer

Al-Sabaeei, A.M. and Mustofa, B.A. and Sutanto, M.H. and Sunarjono, S. and Bala, N. (2020) Aging and rheological properties of latex and crumb rubber modified bitumen using dynamic shear rheometer. Journal of Engineering and Technological Sciences, 52 (3). pp. 385-398.

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Abstract

Rubberized bitumen technology has been applied for a long time to enhance the performance of the asphalt pavement. In this research, the influence of natural rubber (NR) latex and crumb rubber (CR) on the conventional and rheological characteristics of 80/100 penetration grade bitumen before and after aging was compared. Conventional tests of penetration, ring and ball temperature, and ductility were conducted to evaluate the consistency of base bitumen and rubberized bitumen. A dynamic shear rheometer (DSR) test was carried out to evaluate the viscoelastic characteristics of the base and rubberized bitumen. The results showed that the addition of NR latex and CR reduced the penetration grade and increased the ring and ball temperature and ductility of the rubberized bitumen. This indicates that promising enhancement of the bitumen properties can be expected with the addition of NR latex and CR. The rheological properties analysis results showed that addition of CR up to 8 and NR latex up to 4 improved the complex modulus and rutting resistance of the rubberized bitumen compared to conventional bitumen. This indicates that the application of NR latex and CR in bitumen modification is expected to improve the durability of asphalt pavement. © 2020 Published by ITB Institute for Research and Community Services.

Item Type: Article
Impact Factor: cited By 2
Uncontrolled Keywords: Asphalt mixtures; Asphalt pavements; Ductility; Rheology; Rheometers; Shear flow, Complex modulus; Crumb rubber; Dynamic shear rheometer; Modified bitumen; Rheological characteristics; Rheological property; Rutting resistance; Visco-elastic characteristics, Rubber
Departments / MOR / COE: Research Institutes > Institute for Sustainable Building
Depositing User: Ms Sharifah Fahimah Saiyed Yeop
Date Deposited: 19 Aug 2021 07:26
Last Modified: 29 Mar 2022 04:16
URI: http://scholars.utp.edu.my/id/eprint/23268

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