Simulation of a new approach of prestressed concrete component channel quality test

Abstract

Due to lack of effective detection method, channel quality accidents of post-tensioned concrete construction cannot to be discovered on time. An infrared detection principle based on electric heating is intended to be put forward to solve the above-mentioned problem. The results of the numeric simulation on the temperature field of a prestressed concrete component indicate that the electric heating infrared detection technology, for its energy consumption, efficiency and safety, is feasible for detecting the channel quality of prestressed concrete component, but the electric current needs to be controlled to avoid high temperature which affects the physical and mechanical properties of the strand and the concrete.