Title:
Delayed Ettringite Formation: Many Questions and Some Answers
Author(s):
W. G. Hime and S. L. Marusin
Publication:
Symposium Paper
Volume:
177
Issue:
Appears on pages(s):
199-206
Keywords:
alkali-silica reaction; clinker; electron microscopes; ettringite; steam
curing; sulfate; sulfate attack
DOI:
10.14359/6236
Date:
1/1/1999
Abstract:
During the past few years delayed ettringite formation (DEF) has probably received more attention, and been involved in more controversy, than any other concrete deterioration mechanism. Even its name has been subject to dispute. Our extensive experience on the investigation of many occurrences of DEF is presented here as a series of questions, with some answers. Where answers have become available, they have explained phenomena that have greatly bothered us and other investigators. Where answers are not available, the questions will provide directions for needed research.