Formation of Tobermorite from Homogeneous Mixture of Silicic Acid Solution and Saturated Calcium Hydroxide Solution

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概要

• 論文の詳細を見る

• The suspended solution of calcium silicate hydrate gel was obtained by adding the saturated calcium hydroxide solution to the free silicic acid solution, which had been prepared from the sodium silicate solution by ion exchange resin method. Then, this suspension of hydrates was kept at a low temperature for a long period. The hydrates at equilibrium were separated and inverstigated by means of XRD, TG-DTA and TEM. The results obtained were as follows. 1) The CaO and SiO_2 concentration of liquid phase markedly decreased after the equilibrium reached. 2) The obtained hydrates on the hydrothermal reaction were CSH (1) at 25℃, 14 A tobermorite at 60℃ and a mixture of 11 A and 14 A tobermorite at 90℃. 3) All these tobermorite group showed the normal type for thermal behavior.

• 東海大学の論文

著者

• AZUMA YASUO

  Department of Industrial Chemistry, Faculty of Engineering, Tokai University

• Azuma Y

  Department Of Industrial Chemistry Faculty Of Engineering

• Azuma Yasuo

  Department Of Industrial Chemistry Faculty Of Engineering Tokai University

• Azuma Yasuo

  Department Of Applied Chemistry Tokai University

• SUEHIRO Kensuke

  Ex-Proffessor

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