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A method for measuring three-dimensional roughness of concrete surface

A technology of concrete surface and measurement method, applied in the direction of measurement device, instrument, computer material science, etc., can solve the problems of limited dimension, difficulty in concrete roughness detection, low precision and so on

Active Publication Date: 2020-11-13
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above deficiencies, the present invention provides a method for measuring the three-dimensional roughness of the concrete surface, which solves the problems of difficulty in detecting the roughness of concrete at the construction site, low precision, and limited dimensions.

Method used

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  • A method for measuring three-dimensional roughness of concrete surface
  • A method for measuring three-dimensional roughness of concrete surface
  • A method for measuring three-dimensional roughness of concrete surface

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Embodiment Construction

[0049] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0050] This embodiment provides a method for measuring the three-dimensional roughness of a concrete surface, comprising the steps of:

[0051] (1) Conduct a 3D scanning test on the object to be tested, and export the file data as source.stl and source.dxf formats after scanning;

[0052] The 3D scanning test is as follows: start the Dr.PICZA3 software on the desktop, click the green SCAN button, select surround scanning, set the scanning surface to 4, set the height and width to 100mm and 150mm respectively according to the CSP standard model size, and set the scanning accuracy to 0.2 mm, to ensure the accuracy of the 3D scanning test; to ensure that the object to be tested is completely scanned, click Preview to preview, and adjust the parameter settings through the small window; after the parameter settings are completed, click Scan to scan....

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Abstract

The invention proposes a method for measuring the three-dimensional roughness of concrete surface, which belongs to the technical field of concrete surface. The method is aimed at the problem that the current evaluation methods of concrete surface roughness are still not uniform, and the surface roughness of concrete poured on site is uneven. And proposed. The invention proposes to carry out 3D scanning test on the object to be measured, and use software to carry out rotation movement, repair optimization and editing calculation processing to obtain three-dimensional roughness index value. The final datum is established by the relationship between the error variance of the MTD value of the CSP standard model sanding method and the 3D scanning Sa value and the 3D scanning test datum. Through the method proposed by the invention, the three-dimensional roughness of the concrete surface can be measured, so that the on-site construction of the concrete bonding interface can be regulated, and the durability of the concrete building can be improved.

Description

technical field [0001] The invention belongs to the technical field of concrete surfaces, in particular to a method for measuring the three-dimensional roughness of concrete surfaces. Background technique [0002] Concrete bonding interfaces widely exist in concrete structures, such as structural joints such as construction joints, settlement joints, and expansion joints during concrete pouring, splicing joints during wet installation of prefabricated components, and joints between old and new concrete in structural repair and reinforcement. Wait. [0003] The concrete bonding interface is composed of different concrete matrix, interface layer and interface reinforcement. The material properties and hydration degrees of different concrete matrices near the interface layer are different, and there is a deformation coordination problem in the interface layer. Under the action of load and shrinkage, it is easy to form weak links; on the other hand, these weak interface layers ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B11/30G06F30/20G16C60/00G06F111/10
CPCG01B11/30G16C60/00
Inventor 夏晋胡淑婷金伟良
Owner ZHEJIANG UNIV
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