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Side effect of electrochemical desalination in concrete structures



Title: Side effect of electrochemical desalination in concrete structures
Author(s): Y. Tanaka, Y. Hayamizu
Paper category : conference
Book title: 2nd International Symposium on Service Life Design for Infrastructures
Editor(s): K. van Breugel, Guang Ye, Yong Yuan
Print-ISBN: 978-2-35158-096-7
e-ISBN: 978-2-35158-097-4
Publisher: RILEM Publications SARL
Publication year: 2010
Pages: 715 - 722
Total Pages: 8
Nb references: 8
Language: English


Abstract: In electrochemical desalination, alkali silica reaction (ASR) may occur if involved aggregate is potentially reactive. In this study, conventional concrete and fly ash concrete are desalinated to examine the influence of fly ash on desalting rate and ASR. Although fly ash does not influence on desalting process, less ASR expansion took place in fly ash concrete.
Chemical analysis of alkali concentration cleared that alkali concentration of concrete after desalination is much higher than upper limit for general use. Therefore, the reactivity of aggregate should be inspected preliminary when electrochemical desalination is applied to concrete structures.


Online publication: 2011-04-20
Publication type : full_text
Public price (Euros): 0.00