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Durability and service life of concrete repairs in the presence of cracks



Title: Durability and service life of concrete repairs in the presence of cracks
Author(s): Jian Zhou, Guang Ye, Klaas van Breugel
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: 1121 - 1129
Total Pages: 9
Nb references: 11
Language: English


Abstract: Engineered Cementitious Composite (ECC) has been proposed to be one of the most promising repair materials due to its unique high ductility and tight crack width control. In concrete repairs, the shrinkage of repair materials is restrained by concrete substrate, and the repair material therefore often cracks. When ECC is used as repair material, the crack width is much smaller compared to normal concrete. The tight crack width of ECC retards the penetration of water and harmful substances and thus enhances the durability of concrete repairs. This paper is aimed to explore the chloride penetration in cracked ECC repairs and to assess the service life of the repair systems. Rapid chloride migration test was conducted to investigate the chloride penetration profile. Based on the experimental results, the service life of repair systems was evaluated.


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