Comparing concrete performance using conventional and alternative coal ash
Abstract
Fly ash is widely used as a supplementary cementitious material in concrete as it can contribute to strength gain and increased durability of the concrete. The coal ash production volume has decreased in recent years due to most coal combustion energy use being converted to natural gas. One solution is to use alternative coal ash, such as reclaimed coal ash and bottom coal ash. This research aims to investigate the performance of different fly ash materials at both 20% and 40% replacement so that it can be used to develop performance-based testing. This work investigated concrete's slump, compressive strength, and electrical resistivity to compare the performance of traditional, reclaimed, blended, and bottom coal ash sources.
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- OSU Theses [15752]