On the delayed expansion of heat cured portland cement pastes and concretes

被引：19

作者：

Odler, I ^{[1
]}

Chen, YX ^{[1
]}

机构：

[1] TECH UNIV CLAUSTHAL,INST NONMET MAT,D-38678 CLAUSTHAL ZELLERF,GERMANY

来源：

CEMENT & CONCRETE COMPOSITES | 1996年 / 18卷 / 03期

关键词：

D O I：

10.1016/0958-9465(95)00014-3

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Under high temperature heat curing conditions the C(3)A phase of Portland cement hydrates to yield monosulfate. The latter phase converts to ettringite during subsequent curing at ambient temperature, but only after an induction period of many months. This reaction may be associated with an expansion, but only with cements sufficiently high in both C(3)A and SO3. The amount of ettringite needed to cause expansion is distinctly lower than that needed to have this effect in cements with excessive SO3 contents. (C) 1996 Elsevier Science Limited.

引用

页码：181 / 185

页数：5