A Feasibility Study of Thermal Sensitive Coating as Alternative Steel Bar Position Testing for RC Members

• Main Authors: Wu, Hsin-Ta, 吳信達
• Other Authors: Jau, Wen-Chen
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/79852898665084363881

碩士 === 國立交通大學 === 土木工程學系 === 98 === 　 Purpose of this study is to use a kind of varies with the temperature change the color of paint, its painted concrete test surface, as concrete and steel thermal conductivity of different, so the heat transfer process, will speed difference between the surface of the color change occurs. Using this coating can be visually observed from the specimen within the reinforcing bars, and the possible numbers and depth, and then become a non-destructive testing methods. This paper is divided into two experiments to explore: The first part is used in this concrete mixes heat testing laboratories; second part of the concrete containing steel bars non-destructive testing, use # 4、#6、#8、# 10 steel, the laying depth of 1 cm to 5 cm, the specimen temperature of 40 degrees Celsius, 60 degrees, 80 degrees,a total of 60 kinds of different situations of non-destructive inspection. Non-destructive testing method is not to undermine the substance of the premise, Discovery within the detection method. Advantage of fast, convenient and extensive applications. There is no literature search a use of temperature color coating method to detect the concrete inside the method, the future can be developed in the civil engineering structural material of non-destructive testing methods.