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Assessing the role of ASR reactive aggregates in concrete mixes susceptible to DEF
Martin, Liam Thomas, Paul De Silva, Pre Sirivivatnanon, Vute
Martin, Liam
Thomas, Paul
De Silva, Pre
Sirivivatnanon, Vute
Abstract
DEF is a deleterious reaction which may cause cracking in concrete structures. In Australia, reported observations of DEF have been associated with the presence of ASR. Although DEF is an issue of concern for the construction industry, with each state authority having their own specifications for temperature limits in the manufacture of heat-cured precast concrete elements, little work has been done on the susceptibility of structural concrete to DEF or DEF in the presence of reactive aggregates. This paper presents the outcomes of an investigation into the concrete systems at risk of deleterious DEF in the presence of ASR reactive aggregates.
Keywords
delayed ettringite formation, alkali silica reaction, precast concrete, heat-curing, durability loss
Date
2024
Type
Conference paper
Journal
Book
Proceedings of the 17th International Conference on Alkali-Aggregate Reaction in Concrete : ICAAR 2024 - Volume I
Volume
Issue
Page Range
168-175
Article Number
ACU Department
School of Behavioural and Health Sciences
Faculty of Health Sciences
Faculty of Health Sciences
Relation URI
Source URL
Open Access Status
License
All rights reserved
File Access
Controlled