Self-compacting concrete with different levels of pulverized fuel ash |
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| Affiliation: | 1. Department of Civil Engineering, Federal University of Santa Catarina (UFSC), Brazil;2. Department of Civil Engineering, University of Western Santa Catarina (UNOESC), Brazil;1. Department of Civil Engineering, School of Engineering, Nazarbayev University, Kazakhstan;2. Department of Civil Engineering, Faculty of Engineering, University of Nottingham Malaysia Campus, Malaysia;1. Department of Civil Engineering, Dr B R Ambedkar National Institute of Technology Jalandhar, 144 011, India;2. Department of Civil Engineering, Indian Institute of Technology Roorkee, 247 667, India;1. Institute for Infrastructure Engineering, Western Sydney University, Sydney, Australia;2. Zachry Department of Civil Engineering, Texas A&M University, College Station, TX, USA;3. Department of Civil Engineering, University of Toronto, 35 St. George St., Toronto, ON M5S 1A4, Canada |
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| Abstract: | This research investigated self-compacting concrete (SCC) with levels of up to 80% cement replacement by fly ash in mixes adjusted to give constant fresh concrete properties. The hardened concrete and the relationships between hardened properties were then studied.The results show that SCC with up 80% cement replaced by fly ash is possible. To keep the filling ability constant, replacement of cement with fly ash would require an increase in water/powder (W/P) ratio and a reduction in superplasticiser dosage. They also show fly ash have negative effects on passing ability, consistence retention and hardened concrete properties such as strength. The comparison between SCC and normally vibrated concrete (NVC) shows that their material properties of are similar. The successful completion of this project can lead to the use of higher volume fly ash in SCC. |
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