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DEGRADATION OF THE BOND STRENGTH BETWEEN REBAR AND CONCRETE DUE TO THE IMPRESSED CATHODIC CURRENT

陰極防蝕電流對鋼筋與混凝土界面握裹強度折減之影響

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摘要


本研究係探討外加陰極防蝕電流以鋼筋與混凝土介面間的握裹強度之折減效應。實驗結果顯示出基本上隨著外加電流密度與通電時間的增加,介面握裹強度的折減就越明顯。本文中並提出一個新的參數,其代表著在通電時間內單位受保護的鋼材面積上得失電子總數,且以這個參數來表示電流密度與通電時間的合成效果,而結果顯示當此參數超過某一定值以後,握裹強度便開始隨參數的變大而折減越多。

關鍵字

無資料

並列摘要


In this study, the degradation of the bond strength between the steel rebar and concrete by the impressed cathodic current was investigated. Experimental results showed that the bond strength degraded as the charging current density and the polarization time increased basically. A new parameter representing the total transferred electrons per unit protected area was proposed ,and the bond strength was found to decrease as the parameter increased after some value.

並列關鍵字

Cathodic current bond strength concrete

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