CORROSION ACCELERATING TEST METHOD AND CORROSION ACCELERATING TEST APPARATUS

摘要

PROBLEM TO BE SOLVED: To accelerate the corrosion of a reinforcing bar included in a ferro-concrete test piece with a crack.;SOLUTION: A corrosion accelerating test apparatus 100, for accelerating the corrosion of a reinforcing bar 12 included in a ferro-concrete test piece 1 with a crack, comprises: a moisture sensor 3 arranged beside the reinforcing bar 12 exposed from a crack portion 13 of a concrete 11; a weight measuring instrument 4 for measuring a weight of the ferro-concrete test piece 1; and a control terminal 6 that is connected to the moisture sensor 3 and the weight measuring instrument 4, and repeats alternately to perform a wetting step, in which moisture is supplied to the inside of the crack by controlling a temperature-humidity controller 5 and a drying step, in which the moisture inside the crack and the moisture of the exposed surface of the reinforcing bar 12 are removed. The control terminal 6, after starting the wetting step, stops the wetting step and starts the drying step when detecting the moisture via the moisture sensor 3 or when detecting a deviation of inclination of the weight change of the ferro-concrete test piece 1.;SELECTED DRAWING: Figure 2;COPYRIGHT: (C)2020,JPO&INPIT