Alkali-silica reaction inhibited by LiOH and its mechanism

Mo Xiang-yin; Xu Zhong-zi; Wu Ke-ru; Tang Ming-shu

doi:10.1007/BF02835077

Journal of Wuhan University of Technology Materials Science Edition ›› 2003, Vol. 18 ›› Issue (1) : 13 -16. DOI: 10.1007/BF02835077

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Alkali-silica reaction inhibited by LiOH and its mechanism

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Abstract

A high alkali reactive aggregate-zeolitization perlite was used to test the long-term effectiveness of LiOH in inhibiting alkali-silica reaction. In this paper, the rigorous conditions were designed that the mortar bars had been cured at 80°C for 3 years after autoclaved 24 hours at 150°C. Under this condition, LiOH was able to inhibit the alkali-silica reaction long-term effectiveness. Not only the relationship between the molar ratio of n (Li)/(Na) and the alkali contents in systems was established, but also the governing mechanism of such effects was also studied by SEM.

Keywords

lithium compounds / alkali-silica reaction / long-term performance / mechanism

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Mo Xiang-yin, Xu Zhong-zi, Wu Ke-ru, Tang Ming-shu. Alkali-silica reaction inhibited by LiOH and its mechanism. Journal of Wuhan University of Technology Materials Science Edition, 2003, 18(1): 13-16 DOI:10.1007/BF02835077

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References

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