Publication Date:
2018-11-09
Description:
The pre-stressing in concrete structures is a popular construction method these days. One of the main problems is degradation of the structures due to the corrosion of the pre-stressing tendon that frequently generates serious damage. Hence, the corrosion detection in tendons is very important to maintain the health of the pre-stressed concrete (PSC) structures. In this study, a numerical simulation is conducted to find the feasibility of detecting corrosions by using an electric signal. For the numerical simulation, COMSOL multi-physics program which can apply the electric signal is used. The simulation is performed by modeling a set of pre-stressing tendons and ducts placed inside of the PSC structure. The ducts are filled with cement grout, and the corrosions are assumed to occur on the pre-stressing tendons. The electric signal applied at a starting point of the PSC ducts and reflected signal at the positions of corrosions is analyzed. It is confirmed that the electric signa...
Print ISSN:
1757-8981
Electronic ISSN:
1757-899X
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
