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The practical use of palm oil fuel ash as a filler in asphalt pavement

Ahmad, Jamaliah and Mohd Yunus, Khairul Nizam and Mohd Kamaruddin, Nurul Hidayah and Zainorabidin, Adnan The practical use of palm oil fuel ash as a filler in asphalt pavement. In: The International Conference on Civil and Environmental Engineering Sustainability (IConCEES 2011), 3-5 April 2012, Johor Bahru, Malaysia.


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Palm oil industry currently has been seen as an important role in Malaysia’s economy. However, it also driving towards increasing of waste such as empty fruit bunch, mesocarp fibre, palm oil mill effluent (POME), and palm oil fly ash (POFA). POFA is identified as a material that shows good potential to be used as filler in asphalt mixture. Intensive literature showed that most of research primarily used POFA in concrete material, and limited in pavement material. Therefore, in this study, the potential of POFA in asphalt concrete was evaluated as an alternative initiative to promote waste recycling in road construction industry. POFA was incorporated as filler (material passing 75m) into a mixture design ACW20 with varied amount - (0, 3, 5, 7 and 10% by weight of total aggregate) and bitumen content 5.1%±0.5. The specific gravity properties of each amount of POFA were assessed to be used during Marshall volumetric properties. These materials then were analyzed using Marshall stability and resilient modulus. A correlation derived as the specific gravity decreased, the Marshall stability decreased and resilient modulus increased compared to conventional asphalt mixes. Based on the results also, the appropriate amount of POFA found as 3% with the optimum asphalt content 5.1%. The laboratory results showed that the resilient modulus of asphalt mixture was improved with the certain amount of POFA and indicated that POFA have the good potential as alternative filler material in asphalt mix.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Palm Oil Fuel Ash (POFA); resilient modulus; mineral filler
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA703-711 Engineering geology. Rock mechanics. Soil mechanics.
Depositing User: Normajihan Abd. Rahman
Date Deposited: 06 Nov 2012 06:49
Last Modified: 06 Nov 2012 06:49
URI: http://eprints.uthm.edu.my/id/eprint/2548
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