Title:
Understanding How Supplementary Cementitious Materials Suppress ASR
Author(s):
Scrivener
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
10/17/2021
Abstract:
My first contact with Mike was in the early 80s when he was hired via Imperial College to work on use of fly ash in Concrete at BRE. We also did at the time a bit of work to look at the impact of fly ash on ASR. When I moved to Switzerland in 2001 we took up research on ASR again as this is a major issue confronting Dams in Switzerland. In the thesis of Chappex we looked at SCMs containing alumina as well as silica and found that alumina in solution could directly suppress the dissolution of silicate minerals. More recently, through a large collaborative project in Switzerland we have had the opportunity to look at the impact of alumina in more detail. This work highlights the mechanisms by which SCMs suppress ASR.