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Influence of using Batu Pahat soft clay on the mechanical properties of hot mix asphalt mixture

Al Allam, Allam Musbah and Mohd Masirin, Mohd Idrus and Abdullah, Mohd Ezree and Mohd Kamaruddin, Nurul Hidayah (2016) Influence of using Batu Pahat soft clay on the mechanical properties of hot mix asphalt mixture. ARPN Journal of Engineering and Applied Sciences, 11 (4). pp. 2380-2386. ISSN 18196608

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Abstract

There many potential ways to enhance the performance of bituminous mixture used in the surfacing course of road pavements. Due to inadequacy from previous research on Batu Pahat soft clay (BPSC) application as an additive in hot mix asphalt (HMA) mixture, BPSC was used as an additive and introduced in powder form in this present study. The purpose of this research is to evaluate and investigate the effects of BPSC particles on the performance of the HMA mixture. The experimental work for this survey included the use of five percentages of BPSC (0%, 2%, 4%, 6%, and 8%) in reference to the weight of bitumen; a design for the HMA was executed using the Superpave method for each additive ratio, and the optimum bitumen content for each percentage was used. In additional, with respect to assessing an impact for BPSC particles in the asphalt mixture, moisture susceptibility, resilient modulus, and dynamic creep tests were conducted. Through blending steps, the binder was kept at 160 °C, and the shear rate mixer was used for approximately 1 h at 3000 rpm. The results demonstrated that dynamic creep prepared with BPSC modified bitumen had a better resistance to deformation than the controlled mixture. In addition, the BPSC particle reduced the susceptibility to moisture damage and increased the strength of asphalt mixes. BPSC particles likewise improved the durability and rutting resistance of the resilient modulus. The increasing BPSC to 4% appears to hold the greatest potential for beneficial modification of the binder. This research proves that BPSC can improve properties such as, resilient modulus and moisture sensitivity and result in superior performance compared with unmodified bitumen under dynamic creep.

Item Type: Article
Uncontrolled Keywords: Asphalt mixture; Batu Pahat soft clay; dynamic creep; moisture susceptibility; resilient modulus; superpave mix design
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA401-492 Materials of engineering and construction. Mechanics of materials
Divisions: Faculty of Civil and Environmental Engineering > Department of Infrastructure and Geomatic Engineering
Depositing User: Mr. Mohammad Shaifulrip Ithnin
Date Deposited: 13 Aug 2018 03:26
Last Modified: 13 Aug 2018 03:26
URI: http://eprints.uthm.edu.my/id/eprint/8854
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