Method for evaluating susceptibility to hydrogen embrittlement

摘要

PROBLEM TO BE SOLVED: To evaluate hydrogen embrittlement susceptibility taking into consideration a hydrogen embrittlement promotion effect due to a dynamic load to which the reinforcing bars of ferroconcrete are subjected.SOLUTION: Provided is a method for evaluating hydrogen embrittlement susceptibility, including: a step (S2) for applying stresses to ferroconcrete and measuring a secular change in the strain of reinforcing bars in the ferroconcrete by a displacement gauge installed in the ferroconcrete; a step (S3) for calculating a secular change in the load stress of reinforcing bars in the ferroconcrete on the basis of the secular change of strain; and a step (S5) for installing a reinforcing bar as the object to be tested in a solution that simulates a neutralized concrete environment, and applying a dynamic stress to the reinforcing bar as the object to be tested and performing a rupture test for a predetermined period of time on the basis of the calculated secular change of load stress.SELECTED DRAWING: Figure 1