State of the Art Report on Corrosion Verification of Steel Bars in Concrete Structures
By K. Takewaka, T. Maruya, T. Shimomura, A. Yamaguchi and N. Takeda
Concrete Journal, Vol.47, No.11, Nov. 2009
- Synopsis
- Research committee on corrosion evaluation and protection for steel bars (rebars) in concrete (338 Committee) was established in September 2007 as one of research committees in Japan Society of Civil Engineers. In the Committee, the following research works has been carried out; (1) Framework of durability verificaion for concrete structures deteriorated by chloride attack, (2) Clarification of inspection and monitoring for rebar corrosion in concrete, (3) Protection and repair system for deteriorations due to rebar corrosion and their quantitative performance evaluation method. In this report, the research results on a future strategy of durability verification system for concrete structures in Standard Specifications for Concrete Structures are summarized.
- Keywords:
- verification for chloride attack on concrete structure, diffusion coefficient of chloride ion into concrete, threshold value of chloride ion concentration for corrosion initiation, corrosion rate on steel bars in concrete, threshold value of corrosion amount for crack generation, JSCE Standard Specifications for Concrete Structures
