Radwan, A. A. M. and Satar, M. K. I. M. and Hassan, N. A. and Rogo, K. U. (2022) The influence of coal fly ash on the mechanical properties of hot mix asphalt mixture. In: 12th International Conference on Geotechnical Engineering in Tropical Regions: Fostering Future Through Geotechnical, Sustainable Engineering and Technology, GEOTROPIKA 2021 and 2nd International Conference on Highway and Transportation Engineering, 21 - 22 September 2021, Semarang, Virtual.
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Official URL: http://dx.doi.org/10.1088/1755-1315/971/1/012012
Abstract
Coal is one of the most important sources of energy, providing for over 40% of global electricity generation. Coal fly ash (CFA) is the by-product of thermal generation of energy in coal-fired power plant. CFA has been widely employed in the construction of concrete; however, there are only a few cases in which asphalt pavements have employed coal fly ash. This paper aims to determine the performances of CFA as filler in hot mix asphalt (HMA) mixture. This study used four CFA contents as filler by weight of aggregate in the dry method, namely CFA-0, CFA-2, CFA-4, and CFA-6. The mixtures were tested for stability, flow, stiffness, moisture damage, and Cantabro loss test. The findings indicated that the stability values of asphalt mixtures containing CFA were higher than conventional mixture. In addition, incorporating CFA also improved resistance towards moisture damage and durability. As a result, it can be inferred that CFA can be employed as filler substitute in HMA mixtures.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | Coal fly ash (CFA), hot mix asphalt (HMA) |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Civil Engineering |
| ID Code: | 98576 |
| Deposited By: | Widya Wahid |
| Deposited On: | 17 Jan 2023 09:33 |
| Last Modified: | 17 Jan 2023 09:33 |
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