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Method for measuring three-dimensional roughness of concrete surface

A concrete surface and measurement method technology, applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems of limited dimensions, difficult detection of concrete roughness, low precision, etc., and achieve the effect of improving durability

Active Publication Date: 2020-03-31
ZHEJIANG UNIV
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  • Abstract
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  • Claims
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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.

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  • Method for measuring three-dimensional roughness of concrete surface
  • Method for measuring three-dimensional roughness of concrete surface
  • 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 provides a method for measuring the three-dimensional roughness of a concrete surface, and belongs to the technical field of concrete surfaces. The method aims to solve the problems thatthe conventional method for evaluating the surface roughness of the concrete is still not unified and the surface roughness of the concrete poured by on-site construction is uneven. According to theinvention, a 3D scanning test is carried out on a to-be-tested object, and rotary movement, repair optimization and editing calculation processing are carried out by using software, so that a three-dimensional roughness index value is obtained. A final reference surface is determined according to the change relationship between the error variance of the MTD value and the 3D scanning Sa value of the CSP standard model sand paving method and the 3D scanning test reference surface. Through the method provided by the invention, the three-dimensional roughness of the concrete surface can be measured, so that the construction of a concrete bonding interface on site can be standardized, and the durability of a concrete building is 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 Applications(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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