Effect of polymer-modified bitumen and reclaimed asphalt pavement on the physical properties of bitumen

C.A., Odubela and H., Yaacob and M.N.M, Warid and K.J.A, Karim and M.K.A, Mohd Lazi and N.H.M., Kamaruddin and R.P., Jaya and Z.H., Al-Saffar and M.I.K.A., Rahim (2023) Effect of polymer-modified bitumen and reclaimed asphalt pavement on the physical properties of bitumen. In: IOP CONF. SERIES: EARTH AND ENVIRONMENTAL SCIENCE.

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Abstract

The high cost of road construction due to the energy required for new material production and the environmental impact necessitates the use of reclaimed asphalt pavement (RAP) and other waste materials. This paper examined the effect of using RAP with a PET additive as a rejuvenator. PET additive (2%) was added to the virgin binder (VB) of 60/70 penetration grade to form a Polymer modified bitumen (PMB). RAP percentages used were 30, 40, and 50%, respectively. The physical properties were examined using the penetration, softening point, and ductility. The results show that the physical properties of RAP were improved by utilizing Rap binder (RB) and PMB mix ratio. The penetration and ductility values increased by 46.4% and 66.7%, respectively, with the PMB (30): RB (70) ratio blend, compared to RB: VB blend. This suggests a reduction in brittle behavior and less stiffness with the addition of PMB in the blend, enhancing the flexibility of the RAP. Although both mixtures blended with RB exhibited softening points within the acceptable range, improved performance was observed with RB/PMB mix blend over RB/VB blend when used in hot asphalt mixture

Item Type:	Conference or Workshop Item (Paper)
Subjects:	T Technology > T Technology (General)
Divisions:	Faculty of Civil Engineering and Built Environment > FKAAB
Depositing User:	Mrs. Sabarina Che Mat
Date Deposited:	25 Sep 2024 07:19
Last Modified:	25 Sep 2024 07:19
URI:	http://eprints.uthm.edu.my/id/eprint/11596

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