CHEMICAL ENGINEERING TRANSACTIONS VOL. 56, 2017 A publication of The Italian Association of Chemical Engineering Online at www.aidic.it/cet Guest Editors: Jiří Jaromír Klemeš, Peng Yen Liew, Wai Shin Ho, Jeng Shiun Lim Copyright © 2017, AIDIC Servizi S.r.l., ISBN 978-88-95608-47-1; ISSN 2283-9216 Sustainable Pervious Concrete Incorporating Palm Oil Fuel Ash as Cement Replacement Elnaz Khankhaje* ,a , Mohd Razman Salim b , Jahangir Mirza c , Mohd Warid Hussin c , Ho Chin Siong d , Mahdi Rafieizonooz a a Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Malaysia b Centre for Environmental Sustainability and Water Security, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Malaysia c UTM Construction Research Centre (UTM CRC), Faculty of Civil Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor Bahru, Malaysia d Low Carbon Asia Centre, Faculty of Built Environment, Universiti Teknologi Malaysia, 81310, UTM, Johor Bahru, Johor, Malaysia [email protected] Pervious concrete is one of the best materials used in sustainable drainage system to control the stormwater at source. The use of waste materials in concrete is able to reduce the negative impacts of concrete towards the environment. Therefore, this study presents the development of a sustainable pervious concrete by partially replacing cement with palm oil fuel ash (POFA) from palm oil industry. Properties, including void content, compressive and tensile strength as well as permeability were discussed. The results indicated that it is possible to produce sustainable pervious concrete by incorporating POFA. Furthermore, pervious concrete containing POFA showed higher water permeability and void content but lower compressive and tensile strength than control pervious concrete. However, the obtained compressive and tensile strength were within the acceptable range which is reported for strengths of pervious concrete. 1. Introduction Pervious concrete is an environmental friendly product, which is recommended by the Environmental Protection Agency (EPA) of United States to control the stormwater at source. The material is advocated to be used as a top layer of permeable pavement systems. Permeable pavement systems are designed to collect stormwater on the pavement surface to prevent flooding during heavy rain, recharge groundwater, reduce the urban heat island effect and remove pollutants from stormwater runoff (Rahman et al., 2015). Moreover, more sustainable and eco-friendly concrete can be produced by using waste materials such as palm oil fuel ash in concrete (Khankhaje et al., 2015). Typical pervious concrete has void content of ranging from 15 to 30 %, high drainage rate from 0.25 to 6.1 mm/s and compressive strength from 2 to 28 MPa. About ten million tonnes of POFA are produced in Malaysia annually (Yusoff, 2006). Currently, using of POFA is very limited. Landfilling of POFA has in turn caused environmental problems (Khankhaje et al., 2015). Therefore, many researches have been carried out on the possibility of using POFA in blended cement. Tay (1990) revealed that POFA can partially replace cement to be used in concrete due to its pozzolanic reaction. However, it could not be used more than 10 % of cement mass. Awal and Hussin (1996) reported that POFA has a good potential in suppressing expansion due to alkali-silica reaction. Tangchirapat et al. (2009) demonstrated that POFA shows good pozzolanic activity and can replace Ordinary Portland Cement (OPC) up to 30 % (by cement weight) when ground. According to Chindaprasirt et al, (2007) both concrete strength and water permeability increased by partial replacement of cement with POFA. In addition, by using high volume of POFA, the more eco-friendly and sustainable concrete can be produced (Altwair et al., 2012). DOI: 10.3303/CET1756075 Please cite this article as: Khankhaje E., Salim M.R., Mirza J., Hussin M.W., Ho C.S., Rafieizonooz M., 2017, Sustainable pervious concrete incorporating palm oil fuel ash as cement replacement, Chemical Engineering Transactions, 56, 445-450 DOI:10.3303/CET1756075 445
Sustainable Pervious Concrete Incorporating Palm Oil Fuel Ash as Cement Replacement
Apr 29, 2023
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