Studies on the stability of the calcium sulfoaluminate hydrates. Part II: Effect of alite, lime, and monocarboaluminate hydrate

被引：17

作者：

Ghorab, HY ^{[1
]}

Kishar, EA

Elfetouh, SHA

机构：

[1] Helwan Univ, Cairo, Egypt

[2] Ain Shams Univ, Cairo, Egypt

来源：

CEMENT AND CONCRETE RESEARCH | 1998年 / 28卷 / 01期

关键词：

D O I：

10.1016/S0008-8846(97)00253-6

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The variation of the solubility values of ettringite in the presence of alite, lime, and monocarboaluminate hydrate at 30 and 100 degrees C is studied. The solubility product of ettringite is found to be 1.98 x 10(-37) in pure water, 1.11 x 10(-40) in the presence of alite with a mole ratio of 10, and insoluble in the presence of saturated lime solution as well as in an excess amount of monocarboaluminate hydrate. The ettringite phase reacts with the calcium silicate hydrates with the weakening of its X-ray diffraction intensity; at the boiling water temperature the tobermorite phase forms, in the presence of lime or monocarboaluminate hydrate the hydrogarnet phase appears beside the monophase solid solution. (C) 1998 Elsevier Science Ltd.

引用

页码：53 / 61

页数：9

共 12 条

[1]

AHMED HM, 1989, THESIS AIN SHAMS U

[2]

*APHA AWWA WPCF, 1980, STAND METH EX WAT WA, P39

[3]

DRON R, 1976, GIDRATATSIYA TSEM, V2, P208

[4] STUDIES ON THE STABILITY OF THE CALCIUM SULFOALUMINATE HYDRATES .1. EFFECT OF TEMPERATURE ON THE STABILITY OF ETTRINGITE IN PURE WATER [J].