Patent ID: 11867609
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. An accelerated corrosion test apparatus that accelerates corrosion of a reinforcing steel contained in a reinforced concrete specimen having a crack with an inside that extends to the reinforcing steel so as to expose a surface of the reinforcing steel, comprising:
a moisture sensor disposed within the reinforced concrete specimen;
a weight measuring instrument that measures a weight of the reinforced concrete specimen; and
a control terminal that is connected both to the moisture sensor and to the weight measuring instrument and controls a moisture supply and removal device, the control terminal being configured to alternately and repeatedly perform a wetting step of supplying a moisture to the inside of the crack in the reinforced concrete specimen so that the moisture extends to the exposed surface of the reinforcing steel, and a drying step of removing the moisture in the inside of the crack and the moisture on the exposed surface of the reinforcing steel, wherein
the control terminal terminates the wetting step and starts the drying step when the moisture is detected in the moisture sensor, or when change in slope of weight change of the reinforced concrete specimen is detected, after the start of the wetting step.