Setting and hardening of gypsum Portland cement silica fume blends, part 2: Early strength, DTA, XRD, and SEM observations

被引：35

作者：

Kovler, K ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Fac Civil Engn, Natl Bldg Res Inst, IL-32000 Haifa, Israel

来源：

CEMENT AND CONCRETE RESEARCH | 1998年 / 28卷 / 04期

关键词：

D O I：

10.1016/S0008-8846(98)00004-0

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The present work describes a study of setting and hardening of fresh blends of gypsum binder, Portland cement, and silica fume. Such blends can possess the advantages of gypsum (early hardening, high early strength, enhanced workability) and Portland cement (improved durability in moist conditions), but are free of the deleterious effect of ettringite and thaumasite, which an formed when gypsum and Portland cement interact. In part 1, the temperature and setting expansion dependencies in time are described. The influence of superplasticizer on setting and hardening of gypsum, gypsum-cement, and gypsum-cement-silica fume mixes is analyzed. In part 2, the data of early strength, DTA, XRD, and SEM observations are reported and discussed. (C) 1998 Elsevier-Science Ltd.

引用

页码：523 / 531

页数：9