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  Scopus ID: 21100926589

The Durability of Asphalt Concrete Mix (AC-WC) Using Fly Ash from Coal Bottom Ash as Filler Substitution

Ucha Arief Pratama, Sofyan M. Saleh and Yusria Darma

Abstract

Plastic waste is a big problem and is troubling because it takes a long time to decompose. This is a severe problem that must be resolved immediately. One of the efforts that can be made to manage plastic waste is to reuse it. In addition to plastic waste, using coal as a fuel creates new problems because, after burning, it leaves solid waste in the form of fly ash and coal bottom ash. This study aimed to determine the effect of the asphalt concrete mixture due to using coal bottom ash as a filler substitution in wear layer concrete (AC-WC) with LDPE (Low-density polyethylene) mixture on Marshall characteristics using the wet mixing method. After obtaining the best combination of the best LDPE substitution variations on asphalt, tested the substitution of fly ash from coal bottom ash as a filler with variations in the addition of 0%, 25%, 50%, 75%, and 100% filler. The best variation was obtained from adding fly ash as a filler of 25% with a durability value of 94.65% and already fulfilling the requirements of the 2018 Highways Specifications Revision 2 (2020), namely ≥ 90%. Data analysis was carried out using significant results in the one-way ANOVA (Analysis of variance) test showing the effect of fly ash on the density, VIM (Void in mix), VMA (Void in mineral aggregate), and VFA (Void filled by asphalt) values.

Published on: September 27, 2023
doi: 10.17756/nwj.2023-s2-026
Citation: Pratama UA, Saleh SM, Darma Y. 2023. The Durability of Asphalt Concrete Mix (AC-WC) Using Fly Ash from Coal Bottom Ash as Filler Substitution.NanoWorld J 9(S2): S144-S148.

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