A Study of Detect Corrosive Damang of Reinforce Concrete

• Main Authors: Po-Jen Su, 蘇柏仁
• Other Authors: Ming-Te Liang
• Format: Others
• Language: zh-TW
• Published: 1995
• Online Access: http://ndltd.ncl.edu.tw/handle/57699513286595643074

碩士 === 國立海洋大學 === 河海工程學系 === 83 === This study addresses on the feasibility, relibility and applicability of the rebar corrosion detection of RC blocks by using impact echo method and eletrochemical method. For this investigation, two sets of RC blocks are under accelerated corrosion by impressed anodic current.Using open circuit potential method(OCP),direct current polarization method(DC), alternative current impedance method(AC) and impact-echo method to detect the rebar corrosion of RC blocks. Some results are drawn from this study as followings: 1.The corrosive damage of specimen can be evaluated from the comparison between analystic method and relative amplitude.The DC method is under estimated the phenomena of corrosive damage. 2. There is a linear relationship between corrosion thickness and relative amplitude. This can directly response the degree of corrosive damage. 3.In the acceleration spectrum,if one makes some reasonable assumptions and uses a suitable analytic process, then the results of corrosive damage can be expressed in quantities. The value of relative amlpitude after quantitative analysis can directly response the degree of corrosive damage of tested specimen.