The Research and Comparing Test on Calcium Carbonate-Acid Water Glass Grouting Material

Abstract:

The change law of gel time of calcium carbonate-acid water glass grouting material with the content of calcium carbonate is researched in this paper. But the gel time does not increase evenly with reduction calcium carbonic reducing. It increases suddenly because there is sudden exceeding range with the solution pH value increasing. Meanwhile, the change relation of strength of pure gelation with suitable gel time and time is measured. Firming sand strength experiment is conducted by the better mixture ratio. The strength of pure gelation body increases with the time and the content of calcium carbonate increasing. It is closely related with the reaction mechanism of calcium carbonate-acid water glass. The active Ca²⁺ in this system can react with a series of silicate ion to form silicate precipitate which is filled with colloid and forming skeletonation. And the correlation between firming sand strength and the calcium carbonic acid content is non-significant. Finally, the contrast test of the water glass-glyoxal is done, which is the preparation for the subsequent engineering application.

• Periodical: Applied Mechanics and Materials (Volumes 357-360)
• Pages: 635-640
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.357-360.635
• Online since: August 2013
• Authors: Zun Qun Xiao*, Cai Yun Xu, Guo Dong Wu
• Keywords: Gelation, Grouting, Material, Strength, Water Glass

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