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首页> 外文期刊>ISIJ international >Mathematical Modeling For Corrosion Environment Estimation Based On Concrete Resistivity Measurement Directly Above Reinforcement
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Mathematical Modeling For Corrosion Environment Estimation Based On Concrete Resistivity Measurement Directly Above Reinforcement

机译：钢筋正上方混凝土电阻率测量的腐蚀环境估算数学模型

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This study aims to formulate a resistivity model whereby the concrete resistivity expressing the environment of steel reinforcement can be directly estimated and evaluated based on measurement immediately above reinforcement as a method of evaluating corrosion deterioration in reinforced concrete structures. It also aims to provide a theoretical ground for the feasibility of durability evaluation by electric non-destructive techniques with no need for chipping of cover concrete. This Resistivity Estimation Model (REM), which is a mathematical model using the mirror method, combines conventional four-electrode measurement of resistivity with geometric parameters including cover depth, bar diameter, and electrode intervals. This model was verified by estimation using this model at areas directly above reinforcement and resistivity measurement at areas unaffected by reinforcement in regard to the assessment of the concrete resistivity. Both results strongly correlated, proving the validity of this model. It is expected to be applicable to laboratory study and field diagnosis regarding reinforcement corrosion.
机译：这项研究的目的是建立一个电阻率模型，从而可以直接根据钢筋上方的测量值来直接估算和评估表示钢筋环境的混凝土电阻率，以此作为评估钢筋混凝土结构腐蚀恶化的方法。它还旨在为通过电气无损技术进行耐久性评估而无需覆盖混凝土碎裂提供可行性的理论依据。该电阻率估算模型（REM）是使用镜像方法的数学模型，将常规的四电极电阻率测量与包括覆盖深度，钢筋直径和电极间隔在内的几何参数结合在一起。通过使用该模型在钢筋正上方的区域进行估算，并在未受钢筋影响的区域进行电阻率测量（关于混凝土电阻率评估），可以验证该模型。两项结果均密切相关，证明了该模型的有效性。有望将其应用于关于钢筋腐蚀的实验室研究和现场诊断。

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