Hydration of rapid hardening cements and the dissolution of their hydration products in the neutral solution

Yoko Ohba; Kenta Hirose; Etsuo Sakai; Masaki Daimon; Jong-Kyu Lee

doi:10.14853/pcersj.2005S.0.218.0

Annual Meeting of The Ceramic Society of Japan, 2005

Session ID : 2F30

DOI https://doi.org/10.14853/pcersj.2005S.0.218.0

Conference information

Host: The Ceramic Society of Japan

Hydration of rapid hardening cements and the dissolution of their hydration products in the neutral solution

*Yoko Ohba, Kenta Hirose, Etsuo Sakai, Masaki Daimon, Jong-Kyu Lee

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Keywords: hauyne, hydration, dissolution, alite, silica, simulated body fluid

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Abstract

Hydration of alite and hauyne cement with the amorphous fine silica powder were investigated. The hardened paste of the cement substituted by the silica powder(0, 20 and 50 mass%)was soaked in distilled water or the simulated body fluid at 37 C. The hydration reaction progressed in the inside of the paste, regardless of the kind of the soaked solution. Changes in the ion concentration and pH of soaked solution were suppressed by adding the silica powder.

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