| The bond performance of reinforced have decreased in different degree because of erosion corrosion environment. For many engineering structures such as bridges, railway, water conservancy and ports, bear the bonding property of reinforced concrete effect. In this paper, I analyze the degradation of corrosion environment of bonding by means of improving experiment scheme and simplifying experimental modal.This paper plans "pass electrical" as corrosion scheme. Through Faraday’s law we can control the corrosion time and the current. At the same time, I described the mechanism of the corrosion of the scheme in detailed. In durability, bonding between corroded steel bars and concrete has play a decisive role. At the same time, many scholars in this field has achieved fruitful results. Based on the existing research achievements, the specimens of the rate(2%,3%,4%,5%,6%) of different corrosion by accelerated corrosion test was studied by experiment and data processing, analyzing the degradation law of bond corrosion conditions.I intends to cooperate maps by recorded data of the dynamic data acquisition instrument. Finally, I acquire maps of effect of corrosion on the bond performance(λ-Z).Then the fitting formula(4-5) of the change of bond strength with the corrosion depth obtained. Through the formula, I can calculate the bond strength of reinforced bars under different corrosion depth. In addition, we will draw curves taking the value of the end of slip as horizontal coordinate and pull-out load as ordinate. Through comparison and analysis of the corrosion rate between the load slip curves, we can obtain some useful conclusions, guiding for solving many knotty problems in engineering practice significance. |
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