Influence of Caustic Soda Flakes-Phosphogypsum on Activation and Microstructure of Carbide Slag-Flyash

Qing Rong Ding; Yu Ying Ma; Xing Xiang; Hong Cao; Xue Jun Chen

doi:10.4028/www.scientific.net/AMR.790.94

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 790Influence of Caustic Soda Flakes-Phosphogypsum on...

Influence of Caustic Soda Flakes-Phosphogypsum on Activation and Microstructure of Carbide Slag-Flyash

Abstract:

This article studied the influence of the caustic soda flakes (CSF) phosphogypsum (Ard) activator on the properties and microstructure of hydration product generated by carbide slag (CS)-flyash (FA) system which used in high-grade highways pavement. Studies have shown that: the main hydration products generated by carbide slag-flyash system are calcium silicoaluminate hydrate (C-A-S-H) and ettringite (AFt), but the reaction of hydration is slow and the content of hydration products is low. However, the caustic soda flakes-phosphogypsum can promote the formation of C-A-S-H and AFt, so can improve the strength and engineering application of the system effectively.

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Periodical:

Advanced Materials Research (Volume 790)

Pages:

94-97

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.790.94

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Online since:

September 2013

Authors:

Qing Rong Ding, Yu Ying Ma, Xing Xiang, Hong Cao, Xue Jun Chen

Keywords:

Carbide Slag, Caustic Soda Flakes, Fly Ash (FA), Hydration Product, Phosphogypsum

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