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Erschienen in:
2020 | OriginalPaper | Buchkapitel
Air permeability coefficients of expansive concrete confined by rebars
verfasst von : Le Anh Van, Kenichiro Nakarai, Nguyen Huu May, Yasutaka Kubori, Toshikazu Matsuyama, Hajime Kawakane, Shintaro Tani
Erschienen in: CIGOS 2019, Innovation for Sustainable Infrastructure
Verlag: Springer Singapore
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Torrent air permeability tester has been widely used as one the most reliable non-destructive tests for evaluating the quality of the concrete cover. In this study, the Torrent tester was employed to evaluate the influence of rebar con-finement on the surface layer quality of expansive concrete. Blast furnace slag cement was used with the expansive agent to prepare two types of specimens with/without embedded rebars. The results comparing the variation of the measured air permeability at the ages of 28 and 56 days indicated that the con-crete cover confined by rebars obtained a better quality than that of the plain one without rebars.