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Testing Old Cathodic Protection on Ohio Bridge Decks - Essay Example

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Impressed current cathodic protection is employed to mitigate the problem in bridges between the years1985 and 1994 (Bennett et al. 31). However, insufficient data is available on the efficacy of the…
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Testing Old Cathodic Protection on Ohio Bridge Decks
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"Testing Old Cathodic Protection on Ohio Bridge Decks"

Download file to see previous pages Thereafter, the anode is covered with a layer of superplasticized dense material to protect from tear and wear. A rectifier causes a direct current between the reinforced steel and the anode, which causes polarization of the steel surface towards the cathode. According to NACE, all bridges that have potential decay greater than 100 mV are considered adequately protected from corrosion (Bennett et al. 34). Bridges that have ICCP applied are tested after 20 years of installation. Three of the bridges that are tested are polarized at more than 100 mV indicating that the method is effective. Areas with lower than 100 mV polarization are found to have suffered the effects of ...Download file to see next pagesRead More
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