Concrete carbonization depth measuring device and measuring method thereof

Abstract

The invention discloses a non-contact concrete carbonization depth measuring device and method, and the device comprises: a scanning device which is used for carrying out the three-dimensional imaging of a hole of a chiseled part; a data processing device whcih is connected to the scanning device so as to receive three-dimensional imaging data; and a display device which is connected to the data processing device so as to display the boundary graph and the carbonization depth value of the uncarbonized part; The method comprises the following steps: step 1, carrying out hole taking operation on a concrete surface; step 2, removing powder and chippings in the carbonization measurement part by using an ear washing bulb; step 3, spraying a phenolphthalein alcohol solution on a carbonization measurement part; step 4, carrying out stereo scanning imaging on the chiseled hole by adopting a scanning device; and step 5, obtaining the concrete carbonization depth. According to the device and the measurement method, human intervention in the measurement process is reduced, manual measurement errors are reduced, and the measurement efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of concrete detection, and in particular relates to a concrete carbonation depth measuring device and a measuring method thereof. Background technique [0002] At present, the following technical solutions are adopted for the measurement of the carbonation depth of concrete: [0003] 1. Tools can be used to form holes with a diameter of about 15mm on the surface of the survey area, and the depth should be greater than the carbonation depth of the concrete; [0004] 2. The powder and debris in the hole should be removed, and water should not be scrubbed; [0005] 3. The phenolphthalein alcohol solution with a concentration of 1% to 2% should be sprayed on the hole. When the boundary between carbonized and non-carbonized is clear, a carbonization depth measuring instrument should be used to measure the vertical distance between the interface of carbonized and non-carbonated concrete to the concrete surface. ...

AI Technical Summary

Problems solved by technology

[0008] 1. The interface between carbonized and uncarbonated concrete is determined by the observation of the surveyors. There are no clear regulations on the selection of the three measurement points, and there are many human factors, which cannot reflect the real carbonation depth of concrete.

[0009] 2. Due to manual measurement, the number of measurement points is limited and the measurement accuracy is not enough. If more measurement points are used, it will be more accurate, but it will greatly increase the measurement time and affect the detection efficiency

[0010] 3. During the data collection process, the surveyor needs to round off the measured value, and the value is prone to deviation

[0011] 4. The measuring instruments are all contact type, and the contacted measuring points are mostly uneven, so it is difficult to accurately measure the starting point

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