Detection device and method for rebar in concrete

Abstract

The invention relates to a detection device and method for rebar in concrete, and provides a static field capacitance principle-based low-cost, high-accuracy and nondestructive detection device and method. Various types of targeted detection are implemented on the rebar in the concrete, and an accurate and convenient detection result comprising rebar position, size and corrosion quantity is expected to be acquired, and operation efficiency of detection, building engineering acceptance and detection, reinforcement and identification of an existing rebar concrete structure are improved. The detection device comprises an electrode plate, a DC power supply and a data acquisition processing device, wherein the data acquisition processing device comprises a capacitance meter, a display module, an operation module, a processing module and a data connection line socket, wherein an angular frequency of the capacitance meter is set as 10KHz, the display module is used for displaying a numericalvalue obtained after detection of a capacitance sensor, the operation module is used for performing artificial actual operation and inputting special engineering information to set a parameter, the processing module is used for performing data analysis statistics on the numerical value measured by the capacitance meter and other relevant numerical values, and the data connection line socket is used for connecting the electrode plate.

Description

technical field [0001] The invention relates to a device and method for non-destructive testing of steel bars applied in concrete structures, belonging to the field of building construction. Background technique [0002] At present, in the construction of rail transit projects such as commercial and civil buildings, railways and highways, reinforced concrete structures are used in concrete construction. In order to ensure the quality of construction and the safety of subsequent long-term use, it is necessary to carry out a number of special inspections on the steel bars in the concrete, which is the first prerequisite to ensure the safety of reinforced concrete structures. [0003] According to the latest version of my country's "Construction Quality Acceptance Standards for Construction Engineering", the inspection items of the steel bars in the concrete structure include whether the position, size and other parameters are consistent with the design drawings, whether the de...

AI Technical Summary

Problems solved by technology

The electromagnetic induction method is a relatively common detection method, which can measure the position and depth of the steel bar relatively accurately. However, due to the high environmental requirements and the susceptibility to the influence of the material composition, it is easy to cause errors.

The ground radar method is mainly used for the layered detection of concrete, and can also detect the position of the steel bars in the concrete, but the ground radar is relatively complicated to operate and the equipment is expensive

Tomography is also commonly used to evaluate concrete, but its application in practical engineering is limited due to expensive equipment, troublesome operation and data processing

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