Concrete crack repairing quality detection method

Abstract

The invention patent relates to the technical field of the constructional engineering nondestructive detection, and especially relates to a detection method of the concrete crack repairing quality. Anew quantitative judgment method of crack repairing degree after the crack repairing is provided by combining the amplitude-frequency characteristic after crack repairing, thereby quantitatively obtaining a repairing degree result and the testing error range of the method. The research of the invention belongs to the research field of the constructional engineering nondestructive detection technology. The method can be used for the crack repairing process of the housing construction, and bridge and like concrete beam; whether the unknown crack and the crack are completely repaired can be quantitatively evaluated, and the method has good reference function for the crack repairing quality acceptance on the engineering.

Description

technical field [0001] The invention relates to the technical field of non-destructive testing of construction engineering, in particular to a method for testing the quality of concrete crack repair. Background technique [0002] At present, there are three commonly used detection methods for the depth of cracks: one is the ground penetrating radar method, which uses a transmitter to emit electromagnetic waves to concrete. When it encounters materials with different electromagnetic properties such as steel bars or defects, the electromagnetic waves will be reflected back. After receiving the reflected wave, the electromagnetic wave can obtain a waveform diagram, and based on this diagram, the internal defects of the concrete can be inferred. The second is the ultrasonic method, which uses a transmitter to continuously emit ultrasonic pulse waves, so that the ultrasonic waves propagate in the detected concrete, and then the transducer receives the signal. The received signal...

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Problems solved by technology

However, it is impossible to make a judgment on the specific repair situation inside the crack, how deep the crack is unrepaired, and where the unrepaired crack is located.

[0004] To sum up, if the cracks are not repaired completely, we can only roughly estimate whether the cracks inside the concrete are well repaired, and cannot quantitatively determine the specific repair degree of the cracks inside the concrete and the exact depth of the unrepaired area.

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