Determination apparatus and determination method for reinforcing steel bar corrosion rate

Abstract

The present invention discloses a determination apparatus and a determination method for reinforcing steel bar corrosion rate. The determination apparatus comprises a weighing instrument, a computer system, a fixture and a container for holding a liquid, wherein the computer system comprises a processor, an input device and a display device, the data output terminal of the weighing instrument is connected with the processor of the computer system, the determination apparatus further comprises a reinforcing steel bar lifting device, the reinforcing steel bar lifting device comprises a frame, the fixture, a fixture lifting mechanism and a linear displacement sensor for sensing a fixture lifting distance, and the displacement data output terminal of the linear displacement sensor is connected with the processor of the computer system. According to the present invention, characteristics of simple operation, high detection efficiency and high detection precision are provided, and the maximum corrosion rate along the reinforcing steel bar length direction and the corrosion rate curve along the reinforcing steel bar length direction can be accurately obtained.

Description

[technical field] [0001] The invention relates to measuring steel bar corrosion, in particular to a measuring device and a measuring method for steel bar corrosion rate. [Background technique] [0002] In the field of civil engineering, steel bars and concrete are currently the most widely used building materials in the world. A large number of building structures are made of reinforced concrete. However, due to concrete carbonation and chloride corrosion, steel bars are corroded and the structure is reduced. Therefore, the research on the corrosion of steel bars is a durability problem that needs to be solved urgently in engineering. [0003] At present, most of the methods for measuring the corrosion rate of steel bars adopt the method stipulated in "Test Methods for Long-term Performance and Durability of Ordinary Concrete" (GBJ82-85): Take out the steel bars in the test piece, scrape off the concrete attached to the steel bars, and use 12% hydrochloric acid The solution...

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Problems solved by technology

Although the test device of this invention can measure the corrosion rate of steel bars along different length directions, the amount of corrosion of steel bars itself is a very small value, which needs to be measured accurately; Measurement error; using manual adjustment and visual inspection of the falling amount h of the steel bar to measure the corrosion, not only the operation process is cumbersome, the detection efficiency is low, but also there will be a large error

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