CN109029304A - A kind of surface roughness measuring method of concrete - Google Patents
A kind of surface roughness measuring method of concrete Download PDFInfo
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- CN109029304A CN109029304A CN201810758495.2A CN201810758495A CN109029304A CN 109029304 A CN109029304 A CN 109029304A CN 201810758495 A CN201810758495 A CN 201810758495A CN 109029304 A CN109029304 A CN 109029304A
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000003746 surface roughness Effects 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 8
- 238000003384 imaging method Methods 0.000 claims abstract description 7
- 238000004439 roughness measurement Methods 0.000 claims 2
- 230000032683 aging Effects 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000011156 evaluation Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000012417 linear regression Methods 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 238000011158 quantitative evaluation Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/30—Measuring arrangements characterised by the use of optical techniques for measuring roughness or irregularity of surfaces
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Processing Or Creating Images (AREA)
Abstract
The invention discloses a kind of surface roughness measuring method of concrete, based on computer-implemented, comprising steps of 1) in response to the specific information data on concrete sample surface to obtain concrete sample surface data;The specific information data on the concrete sample surface are 3D imaging data, including tomographic data, super depth-of-field microscope imaging data etc.;2) roughness computer storage media is established according to the information data of solidifying native surface of test piece obtained, and it carries out calculating roughness metric of the revision to obtain concrete sample surface, this method can quantify concrete surface roughness index accurately to measure the situation of change of concrete, influence for evaluation external environment to concrete construction determines that building aging conditions all have the certain significance.
Description
Technical field
The present invention relates to technical field of concrete, in particular to a kind of surface roughness measuring method of concrete.
Background technique
Concrete is porous structure, and after use, after by external various erosion medium resistance, concrete surface will appear
Different degrees of destarch, surface can become coarse.Although it is led currently, there is various surface roughometers in the market
To be applied to the accurate machine components of measurement, more coarse test specimen this for concrete still none be capable of quantification
Measurement method.However, the situation of change of quantization concrete, for quantifying to determine influence of the external environment to concrete construction, with
The security situation for determining that building aging conditions are even built all has very important significance.
In order to accurately measure the situation of change of concrete, allow this only to become one kind as the index of appearance and quantify to comment
The index estimated, present inventors have proposed a kind of measurement methods of concrete surface roughness.
Summary of the invention
It is an object of the invention to propose a kind of surface roughness measuring method of concrete, this method can be with quantitative expression
The roughness situation of change of surface of test piece.
The measurement method of concrete surface roughness of the present invention, based on computer-implemented, comprising steps of
1) in response to the specific information data on concrete sample surface to obtain concrete sample surface data;The coagulation
The specific information data of native surface of test piece are 3D imaging data, including tomographic data, super depth-of-field microscope imaging data etc.;
2) roughness computer storage media is established according to the information data of solidifying native surface of test piece obtained, and is calculated
It revises to obtain the roughness metric on concrete sample surface.
From practical application angle, in such a way that super depth-of-field microscope obtains concrete sample surface specific data more just
It is prompt, practical.It is preferred that selection obtains concrete sample surface specific data with 30 times of super depth-of-field microscopes, 30 times of super depth of field are established
Microscope roughness computer storage media, and the roughness for calculate the roughness value that revision obtains concrete sample surface is surveyed
Amount method.
Beneficial effects of the present invention:
1. this method can make concrete surface roughness become one kind from a kind of appearance phenomenon can be with the finger of quantitative evaluation
Mark, accurately to measure the situation of change of concrete.
2. influence of this method for evaluation external environment to concrete construction, for determining that building aging conditions are even built
The security situation built all has the certain significance.
Detailed description of the invention
Fig. 1 is that the surface of test piece of the super depth-of-field microscope shooting of embodiment amplifies the 3D shape appearance figure after 30 times.
Fig. 2 is the scatter plot drawn out in embodiment.
Fig. 3 is the least squares that least-squares linear regression is drawn in embodiment.
Specific embodiment
In order to understand the present invention, below with reference to embodiment, the present invention will be further described, but does not limit the present invention.It is retouched
The embodiment stated is only a part of the invention, based on the obtained other embodiment of enlightenment of the invention, all should belong to this
Invent protected range.
Embodiment
The test specimen that selection need to measure surface roughness value first determines measurement position A, with super depth-of-field microscope shooting, collecting
3D pattern diagram data of the position under 30 times imports the pattern diagram data A-3D.csv in computer, and A is classified as Y-axis data,
X-axis spacing is the Lens calibration value in file.
Secondly, roughness at the A of calculating position and establishing 30 times of super depth-of-field microscope roughness computer storage medias:
With EXCEL open A--3D.csv file, click view-it is macro-record macro;It is C that macro shortcut key, which is arranged, clicks creation;
X-axis spacing Lens calibration value arranges (since 0, successively increasing the value) as F;
G column=A column are set;
It being arranged using F as X-axis, G is classified as Y-axis, draws out with smooth scatter plot, find out the minimum two of contour curve into middle line,
Least-squares linear regression analysis is carried out to curve, obtains Trendline formula.
It is arranged using F as X-axis, obtains H at middle line using minimum two for formula and arrange;
Gained straight line is analyzed with least-squares linear regression and makees X-axis, and vertical direction makees Y-axis, rebuilds coordinate system, i.e., approximate to obtain
To I column=G column-H column.
Ra is sought using formula:
That is 11 points are averaged in proximate selection I column, obtain the roughness value.
Stop checking macro, point editor, i.e. 30 times of super depth-of-field microscope roughmeters of completion to macro recording after the completion of calculating
Calculate the foundation of storage medium.
Later, as the 3D diagram data again with super 30 times of depth-of-field microscope shooting, collecting any concrete sample surfaces and general
After the data of the figure, that is.csv file stores on to this to computer, can directly it be obtained quickly using the above-mentioned storage medium of operation
Roughness value at required position.
For example, when again with the 3D diagram data of 30 times of super depth-of-field microscope shooting, collecting concrete sample B surfaces, by it
After image data B-3D.csv exports to above-mentioned computer, open file B-3D.csv, click view-it is macro-check macro, macro entitled record
The shortcut key C being arranged when making macro clicks creation;Open Microsoft Visual Basic in EXCEL
Applications module runs the code in above-mentioned storage medium, and minimum two is obtained after executing once into the line of centerline fit
Property Trendline formula, manual modification H column formula;The code in above-mentioned storage medium is reruned to get concrete sample B is arrived
Roughness value.
Claims (3)
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110763166A (en) * | 2019-10-31 | 2020-02-07 | 江苏省建筑工程质量检测中心有限公司 | Test system and method for surface roughness detection of precast concrete laminated plate |
CN110864610A (en) * | 2019-11-04 | 2020-03-06 | 杭州都市高速公路有限公司 | Test method for reconstructing 3D roughness of concrete surface based on 3D scanning |
CN110940299A (en) * | 2019-11-04 | 2020-03-31 | 浙江大学 | Method for measuring three-dimensional roughness of concrete surface |
CN111964635A (en) * | 2020-08-28 | 2020-11-20 | 哈尔滨工业大学 | Method for testing surface roughness of concrete matrix restoration |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110763166A (en) * | 2019-10-31 | 2020-02-07 | 江苏省建筑工程质量检测中心有限公司 | Test system and method for surface roughness detection of precast concrete laminated plate |
CN110864610A (en) * | 2019-11-04 | 2020-03-06 | 杭州都市高速公路有限公司 | Test method for reconstructing 3D roughness of concrete surface based on 3D scanning |
CN110940299A (en) * | 2019-11-04 | 2020-03-31 | 浙江大学 | Method for measuring three-dimensional roughness of concrete surface |
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CN110864610B (en) * | 2019-11-04 | 2021-08-03 | 杭州都市高速公路有限公司 | Test method for reconstructing 3D roughness of concrete surface based on 3D scanning |
CN111964635A (en) * | 2020-08-28 | 2020-11-20 | 哈尔滨工业大学 | Method for testing surface roughness of concrete matrix restoration |
CN111964635B (en) * | 2020-08-28 | 2023-10-24 | 哈尔滨工业大学 | Method for testing surface roughness of concrete matrix repair |
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Application publication date: 20181218 |