Delayed ettringite formation - A concern for precast concrete

被引：13

作者：

Hime, WG ^{[1
]}

机构：

[1] HIME ASSOCIATES CONSTRUCT MAT CONSULTANTS,NORTHBROOK,IL

来源：

PCI JOURNAL | 1996年 / 41卷 / 04期

关键词：

D O I：

10.15554/pcij.07011996.26.30

中图分类号：

TU [建筑科学];

学科分类号：

0813 [建筑学];

摘要：

Internal sulfate attack on present concrete products has been investigated by the author. The cause fir these failures has been identified as delayed etteringite attack, a process whereby the normal formation of etteringite in plastic portland cement concrete is either delayed or is formed and then decomposed, only to destructively reform in the hardened concrete after months of years of exposure to water. Reasons for the apparent newness of the phenomenon, and methods for preventing it, are given on the basis of investigations of incidences during the past several years.

引用

页码：26 / 30

页数：5