Effect of the Composite of Fly Ash and Slag on Alkali-Silica Reaction

Abstract:

The study used the method of accelerated mortar bar test to study alkali aggregate reaction (ASR) with sandstone aggregate. Both fly ash and slag can inhibit the expansion of mortar bar. Results show that 50% slag can inhibit ASR reluctantly, but 10% fly ash and 20% slag can inhibit ASR very well, and the inhibitory effect of fly ash is far better than slag. Because of the high content of CaO in slag, it has inhibit and promote aspects, when the ASR is fierce, slag can inhibit ASR, otherwise slag can promote ASR.

• Periodical: Advanced Materials Research (Volume 936)
• Pages: 1428-1432
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.936.1428
• Online since: June 2014
• Authors: Tong Chao Liu*, Bo Xiao, Gu Hua Li, Nian Hong Luo, Long Sheng Zhang
• Keywords: Admixture, Alkali-Aggregate Reaction (AAR), Fly Ash (FA), Slag

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