Influence of anti-corrosive coatings on bond behavior of corroded rebar

Mohammad Ridduhan Natino*, Yizhou Yang, Hikaru Nakamura, Taito Miura

*この研究の対応する著者

研究成果: Conference contribution

抄録

This research aims to investigate the influence of anti-corrosive coating on the bond behavior of coated corroded rebar to concrete. Two different types of anti-corrosive coating materials have been considered and each is to be applied manually. The test specimens are divided into six groups. Group I contains sound or non-corroded rebar serve as control group, Group II and III are the coated sound rebar groups serve to investigate the direct effect of coating, while Group IV is the bare corroded rebar group, and the Group V and VI are the coated corroded rebar groups. The accelerated electric corrosion method is employed for the Group IV-VI with a varying target degree of corrosion ranging from 5% to 10%. After the target corrosion degree is achieved, laser scanning test is conducted to investigate the change in geometrical properties of the sound/coated and the coated corroded rebar groups. Thereafter, Group I-III are casted and Group IV-VI are re-casted into new specimens and bond-slip relationships are measured through two-end pull out test. As important findings, the anti-corrosive coating materials have a significant influence on the bond behavior. Cementitious coated exhibits a brittle bond-slip behavior and shows a better performance as compared to epoxy coated with a ductile bond-slip behavior.

本文言語English
ホスト出版物のタイトルProceedings of the fib Symposium 2020
ホスト出版物のサブタイトルConcrete Structures for Resilient Society
編集者Bin Zhao, Xilin Lu
出版社International Federation for Structural Concrete
ページ2205-2213
ページ数9
ISBN(電子版)9782940643042
出版ステータスPublished - 2020
外部発表はい
イベント2020 fib Symposium: Concrete Structures for Resilient Society - Virtual, Shanghai, China
継続期間: 2020 11月 222020 11月 24

出版物シリーズ

名前Proceedings of the fib Symposium 2020: Concrete Structures for Resilient Society

Conference

Conference2020 fib Symposium: Concrete Structures for Resilient Society
国/地域China
CityVirtual, Shanghai
Period20/11/2220/11/24

ASJC Scopus subject areas

  • 土木構造工学
  • 建築および建設
  • 建築

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