コンクリート工学年次大会 2013(名古屋)

講演情報

第35回コンクリート工学講演会 » 腐食・防食

[L21] 腐食・防食Ⅱ

2013年7月9日(火) 15:30 〜 17:30 第7会場 234号室 (名古屋国際会議場)

[座長(建築)]兼松 学、[座長(土木)]山口 明伸

[L1183] Cover Crack-Width Propagation of Reinforced Concrete Members Induced by Corrosion

Aris ARYANTO1,篠原 保二2 (1.Tokyo Institute of Technology,2.東京工業大学)

キーワード:ひび割れ幅,腐食,鉄筋コンクリート,保守性

Cover crack-width propagation of reinforced concrete beams caused by corrosion are experimentally investigated through the accelerated corrosion testing. The study evaluates the relative influence of stirrup confinement, bar diameter, and concrete strength. The crack-width propagation increases with increasing of concrete strength. It was found that the stirrups strain rate is coherent with the rate of crack propagation so that the crack propagation rate can be monitored from the strain rate. Vice versa, the corrosion rate and strain of stirrups can be estimated from the crack propagation.
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