Leaching Characteristics of Cement-Fly Ash Pastes

Abstract:

The leaching characteristics of cement-fly ash pastes were investigated by MIP, XRD and TG. The results show that the microstructure of hardened cement-fly ash paste deteriorates partly after leaching of soft water. At the leaching duration of 180 days, the hardened paste containing fly ash deteriorated a little more serious than the plain cement paste, but the incorporation of fly ash in a proper ratio was helpful to defer the trend of deterioration of the hardened paste microstructure. The microstructural stability of hardened cement-fly ash paste wasn’t damaged severely during the 180 days leaching duration.

• Periodical: Advanced Materials Research (Volumes 557-559)
• Pages: 915-919
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.557-559.915
• Online since: July 2012
• Authors: Xiang Li, Liang Zhang, Jia Zheng Li
• Keywords: Calcium Hydroxide, Cement, Fly Ash (FA), Leaching, Microstructure

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