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Field cases of delayed ettringite formation



Title: Field cases of delayed ettringite formation
Author(s): M. D. A. Thomas, T. Ramlochan
Paper category : conference
Book title: International RILEM Workshop on Internal Sulfate Attack and Delayed Ettringite Formation
Editor(s): K. Scrivener and J. Skalny
Print-ISBN: 2-912143-44-6
e-ISBN: 2912143802
Publisher: RILEM Publications SARL
Publication year: 2004
Pages: 85 - 97
Total Pages: 13
Nb references: 37
Language: English


Abstract: This paper discusses some field cases where DEF has been implicated in deterioration of concrete structures. In most of the reported "cases" of DEF some other mechanism of deterioration, usually ASR, has also been present and it is difficult to determine the actual contribution made by DEF to the apparent damage or, indeed, whether DEF played a role at all in the deterioration of the concrete. Based on the number of confirmed cases of DEF damage in the field, it would appear that this risk of this process causing premature deterioration in real concrete structures is low compared to other more established deterioration processes. This is surprising given the relative ease with which expansion due to DEF can be produced in the laboratory. The disparity between laboratory and field behaviour is discussed.


Online publication: 2002-09-07
Publication type : full_text
Public price (Euros): 0.00
doi: 10.1617/2912143802.006