The influence of coal bottom ash as filler in asphalt mixture

Liew Siaw Ing, Nicole and Ng, Cui Ming and Muzamir, Hasan and Putra Jaya, Ramadhansyah and Ekarizan, Shaffie and Nordiana, Mashros and Mohamed, Abdullahi Ali (2022) The influence of coal bottom ash as filler in asphalt mixture. In: Key Engineering Materials; 5th World Sustainable Construction Conference, WSCC 2021 , 15 - 16 October 2021 , Virtual, Online. 185 -198., 912. ISSN 1013-9826 (print); 1662-9795 (online) ISBN 978-303571792-1

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The number of transport or vehicles on the road is increasing, which cause the road pavement or asphalt surface exposed to greater loading. Problems such as permanent deformation, cracking, fatigue, and skidding happened because of this repeated loading. There are many studies have been done to determine the suitable waste materials that can be used in order to improve resistance to rutting and fatigue cracking due to filler hardening and improve adhesion of filler to aggregate. The aim of this study is to investigate the effect of CBA on engineering properties of asphalt mixture. The different percentages of CBA (0%, 2%, 4% and 6%) were added to the asphalt mixture. The 60/70 penetration grade asphalt was used. The performance of the samples was evaluated through Marshall Stability, indirect tensile strength, resilient modulus, dynamic creep and image analysis. From the result obtained, there are significant effect comes from the addition of CBA. The result show that the addition of CBA in range of 2 to 4% produces the best outcomes for the density, stability, stiffness and flow while 6% for indirect tensile strength, dynamic creep and resilient modulus. Thus, it can conclude that the existence of CBA can enhance the performance of asphalt mix.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Asphalt mixture; Coal bottom ash; Creep modulus; Image; Marshall stability
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
T Technology > TE Highway engineering. Roads and pavements
Faculty/Division: Institute of Postgraduate Studies
College of Engineering
Depositing User: PM Dr. Ramdhansyah Putra Jaya
Date Deposited: 12 Jul 2022 08:04
Last Modified: 12 Jul 2022 08:04
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