Study on Critical Corrosive Ratio of Reinforced Concrete Based on Monte-Carlo Method

Abstract:

Based on the relationship between the displacement and the corresponding strain in protective layer concrete during their corrosive expanding, the strain in protective layer arrives the critical strain have been think as the cracking condition, then a certainty critical corrosive ratio model has been constructed in this paper. Considering the probability distribution and the statistical characteristics of concrete protective layer thickness c, reinforced bar diameter d_st and the effectively volume expansion coefficient neff, the Monte-Carlo method have been used to simulate the critical corrosive ratio ρ_cr, its probability distribution has been shown in good agreement with Weibull distribution and lognormal distribution in results. Through the constant current polarization accelerated corrosion test, the critical corrosive model has been validated. With comparison of critical corrosive ratio which be obtained with the test and the model simulation results respectively, where a good agreement have been shown.

• Periodical: Applied Mechanics and Materials (Volumes 105-107)
• Pages: 1060-1064
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.105-107.1060
• Online since: September 2011
• Authors: Yue Shun Chen, Li Liu
• Keywords: Concrete Structure, Corrosive Expanding, Critical Corrosive Ratio, Monte-Carlo Method (MC-Method)

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