テトラカルシウムアルミノフェライトの酢酸水溶液中での水和反応
1990 年 98 巻 1133 号 p. 110-112
詳細
1990 年 98 巻 1133 号 p. 110-112
Tetracalcium aluminoferrite was hydrated at 25°C with acetic acid solutions. The hydration rate of tetracalcium aluminoferrite was retarded remarkably when 1.00mol/l acetic acid solution was used. When distilled water, 0.10 and 0.25mol/l acetic acid solutions were used, tetracalcium aluminate tridecahydrate was formed. However, a hydrate characterized by two X-ray diffraction peaks with spacings of 10.9 and 5.4Å appeared when 0.50 to 1.00mol/l acetic acid solutions were used. This hydrate was stable up to 150°C in air, and was a complex of organic-tetracalcium aluminate hydrate. Acetic acid molecules were probably sorbed in the interlayer region of tetracalcium aluminate hydrate.
