CN110146511A - A kind of clear-water concrete bubble detecting method - Google Patents
A kind of clear-water concrete bubble detecting method Download PDFInfo
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- CN110146511A CN110146511A CN201910411299.2A CN201910411299A CN110146511A CN 110146511 A CN110146511 A CN 110146511A CN 201910411299 A CN201910411299 A CN 201910411299A CN 110146511 A CN110146511 A CN 110146511A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
- G01N2021/8893—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques providing a video image and a processed signal for helping visual decision
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Abstract
The invention discloses a kind of clear-water concrete bubble detecting methods, are related to concrete material technical field；The following steps are included: the acquisition of image: being cleaned 3-4 times repeatedly to faced concrete surface with deionized water, remove surface dirt, taken pictures sampling using high-definition digital camera to faced concrete surface；The determination of smallest sample number: it is calculated according to formula；Image local self-adaption binaryzation processing: by the adjusting of RGB threshold values, by clear-water concrete matrix in picture and faced concrete surface bubble separation；The present invention is applied to concrete bubble detection technique field.
Description
Technical field
The present invention relates to concrete material technical field, specially a kind of clear-water concrete bubble detecting method.
Background technique
Clear-water concrete is directly using the natural texture after concrete formation as the concrete of finishing effect；It can be divided into
Common clear-water concrete, fair-faced concrete and decoration clear-water concrete；Common clear-water concrete refers to surface color without bright
Develop the color poor, the clear-water concrete to finishing effect without particular/special requirement；Fair-faced concrete refers to that surface color is almost the same, by
It is that the combinations such as the split bolt eye of regular arrangement, outseam, cicada seam, artificial eye are formed, using natural texture as the clear water of finishing effect
Concrete；Decorate the clear-water concrete that faced concrete surface forms decorative pattern, boudle piece or colour.
Clear-water concrete engineering has obtained tremendous development since at the end of the 20th century, in China；Clear-water concrete system once at
Type, the concrete for not doing any external decoration directly adopt the Natural color of cast-in-place concrete as facing, it is desirable that concrete surface is flat
Whole smooth, uniform color, no clashing and breaking and pollution, neat appearance is answered in the setting of mold split bolt and construction joint, and does not allow
The common quality defect of existing normal concrete；A series of achievements are achieved in terms of clear-water concrete scientific research and engineer application, but
There is also deficiencies in terms of the foundation of apparent mass of clear concrete evaluation method；For the inspection of faced concrete surface bubble
It surveys, is not filled in concrete whipping process using whether transparent cup testing inspection concrete row's bubble occurs only in many engineerings
Point, whether have laitance etc., lack to engineering acceptance phase the detection to blibbing content.Also, " clear water is mixed by JGJ169
Coagulate soil application technology regulation " quantitative requirement has although been carried out for bubble, but not yet explicitly description selection position is that effect is preferable
Position, effect poor position, representative position, this may generate completely different judgement result.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of clear-water concrete bubble detecting method, have it is simple and easy simultaneously
And accuracy it is higher the advantages that, solve the problems, such as that current detection method effect is undesirable.
(2) technical solution
To realize the higher purpose of above-mentioned simple and easy and accuracy, the invention provides the following technical scheme: a kind of clear water is mixed
Solidifying soil bubble detecting method, comprising the following steps:
The acquisition of S1, image: cleaning 3-4 times faced concrete surface with deionized water repeatedly, removes surface dirt, uses height
Clear digital camera takes pictures sampling to faced concrete surface；
The determination of S2, smallest sample number: according to formulaIt is calculated, whereinFor acceptable error water
It is flat,=1.96,To calculate standard deviation；
S3, the processing of image local self-adaption binaryzation: by the adjusting of RGB threshold values, by clear-water concrete matrix in picture and clearly
Water coagulation soil blibbing disintegration；
The calculating of S4, bubble area and its occupied area percentage: using the measure function of Image Pro-plus software,
Area parameter is selected, measure button is then clicked, completes measurement.
Advanced optimize the technical program, in the S1, the bubble marking pen that can identify naked eyes before taking pictures into
Row colouring processing, or bubble is painted using Image Pro-plus software after obtaining photo.
Advanced optimize the technical program, in the S3, RGB threshold values is an on-fixed number, and different pictures has
Different colorations will be adjusted slowly in software, show different colours until adjusting to visible bubble and matrix.
Advanced optimize the technical program, in the S3, black, surface is presented in clear-water concrete matrix after bubble separation
White is presented in bubble.
Advanced optimize the technical program, in the S4, square measure is pixel and square metre one such.
Advanced optimize the technical program, in the S4, qualified judgment criteria be when area percentage is less than 0.2%,
Then it is judged as qualified.
(3) beneficial effect
Compared with prior art, the present invention provides a kind of clear-water concrete bubble detecting methods, have following the utility model has the advantages that base
The apparent matter of clear-water concrete is quantitatively proposed by the binary conversion treatment to test photo in Image Pro-plus software
Measure detection means；For faced concrete surface bubble area, a kind of simple and easy measurement method is proposed, this method is accurate
Degree is higher, and error is less than 1%；For the surface chromatic aberration of clear-water concrete, it is quantitative describe people's naked eyes judge colour-difference away from according to
According to；The technology has certain guiding significance to other clear-water concrete detection projects.
Detailed description of the invention
Fig. 1 is measurement process schematic diagram of the invention；
Fig. 2 is binary conversion treatment comparison diagram of the invention；
Fig. 3 is that Image Pro-plus software bubble area of the invention measures surface chart.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
Embodiment one:
A kind of clear-water concrete bubble detecting method, comprising the following steps:
The acquisition of S1, image: cleaning faced concrete surface 3 times repeatedly with deionized water, removes surface dirt, and bubble is isolated
Change processing can identify naked eyes before taking pictures since the color of bubble is close with the color of clear-water concrete matrix
Bubble carries out colouring processing with marking pen, is taken pictures sampling using high-definition digital camera to faced concrete surface；
The determination of S2, smallest sample number: according to formulaIt is calculated, whereinFor acceptable error water
It is flat,=1.96,To calculate standard deviation, the purpose of determination of smallest sample number be from eliminating systematic error to the full extent, into
And guarantee that analysis result is representative；
S3, the processing of image local self-adaption binaryzation: by the adjusting of RGB threshold values, RGB threshold values is an on-fixed number, no
Same picture has different colorations, slowly to adjust in software, shows until adjusting to visible bubble and matrix
Clear-water concrete matrix in picture and faced concrete surface bubble separation are made clear-water concrete base by different colours
Black is presented in body, and white is presented in blibbing, as shown in Fig. 2 in Detailed description of the invention；
The calculating of S4, bubble area and its occupied area percentage: square measure is pixel, utilizes Image Pro-plus software
Measure function, which is a powerful 2D and 3D rendering processing, enhancing and analysis software, is had abnormal rich
Rich measurement and customization function, software measure interface as shown in Fig. 3 in Detailed description of the invention, select Area parameter, then click
Measure button, calculates bubble area and its percentage, completes measurement.
Embodiment two:
A kind of clear-water concrete bubble detecting method, comprising the following steps:
The acquisition of S1, image: cleaning faced concrete surface 3 times repeatedly with deionized water, removes surface dirt, uses high definition
Clear digital camera takes pictures sampling to faced concrete surface, obtain utilize after photo Image Pro-plus software by bubble into
Row colouring, the software are a powerful 2D and 3D rendering processing, enhancing and analysis software, have abnormal measurement abundant
With customization function；
The determination of S2, smallest sample number: according to formulaIt is calculated, whereinFor acceptable error level,=1.96,To calculate standard deviation, the purpose of determination of smallest sample number is from eliminating systematic error, Jin Erbao to the full extent
Card analysis result is representative；
S3, the processing of image local self-adaption binaryzation: by the adjusting of RGB threshold values, RGB threshold values is an on-fixed number, no
Same picture has different colorations, slowly to adjust in software, shows until adjusting to visible bubble and matrix
Clear-water concrete matrix in picture and faced concrete surface bubble separation are made clear-water concrete base by different colours
Black is presented in body, and white is presented in blibbing, as shown in Fig. 2 in Detailed description of the invention；
The calculating of S4, bubble area and its occupied area percentage: square measure be square metre, it is soft using Image Pro-plus
The measure function of part, software measure interface as shown in Fig. 3 in Detailed description of the invention, select Area parameter, then click
Measure button, calculates bubble area and its percentage, completes measurement.
Embodiment three:
A kind of clear-water concrete bubble detecting method, comprising the following steps:
The acquisition of S1, image: cleaning faced concrete surface 4 times repeatedly with deionized water, removes surface dirt, and bubble is isolated
Change processing can identify naked eyes before taking pictures since the color of bubble is close with the color of clear-water concrete matrix
Bubble carries out colouring processing with marking pen, is taken pictures sampling using high-definition digital camera to faced concrete surface；
The determination of S2, smallest sample number: according to formulaIt is calculated, whereinFor acceptable error level,=1.96,To calculate standard deviation, the purpose of determination of smallest sample number is from eliminating systematic error, Jin Erbao to the full extent
Card analysis result is representative；
S3, the processing of image local self-adaption binaryzation: by the adjusting of RGB threshold values, RGB threshold values is an on-fixed number, no
Same picture has different colorations, slowly to adjust in software, shows until adjusting to visible bubble and matrix
Clear-water concrete matrix in picture and faced concrete surface bubble separation are made clear-water concrete base by different colours
Black is presented in body, and white is presented in blibbing, as shown in Fig. 2 in Detailed description of the invention；
The calculating of S4, bubble area and its occupied area percentage: square measure be square metre, it is soft using Image Pro-plus
The measure function of part, the software are a powerful 2D and 3D rendering processing, enhancing and analysis software, are had abnormal
Measurement and customization function abundant, software measure interface as shown in Fig. 3 in Detailed description of the invention, select Area parameter, then click
Measure button, calculates bubble area and its percentage, completes measurement.
Example IV:
A kind of clear-water concrete bubble detecting method, comprising the following steps:
The acquisition of S1, image: cleaning faced concrete surface 4 times repeatedly with deionized water, removes surface dirt, uses high definition
Clear digital camera takes pictures sampling to faced concrete surface, obtain utilize after photo Image Pro-plus software by bubble into
Row colouring, the software are a powerful 2D and 3D rendering processing, enhancing and analysis software, have abnormal measurement abundant
With customization function；
The determination of S2, smallest sample number: according to formulaIt is calculated, whereinFor acceptable error level,=1.96,To calculate standard deviation, the purpose of determination of smallest sample number is from eliminating systematic error, Jin Erbao to the full extent
Card analysis result is representative；
S3, the processing of image local self-adaption binaryzation: by the adjusting of RGB threshold values, RGB threshold values is an on-fixed number, no
Same picture has different colorations, slowly to adjust in software, shows until adjusting to visible bubble and matrix
Clear-water concrete matrix in picture and faced concrete surface bubble separation are made clear-water concrete base by different colours
Black is presented in body, and white is presented in blibbing, as shown in Fig. 2 in Detailed description of the invention；
The calculating of S4, bubble area and its occupied area percentage: square measure is pixel, utilizes Image Pro-plus software
Measure function, software measure interface as shown in Fig. 3 in Detailed description of the invention, select Area parameter, then click measure
Button calculates bubble area and its percentage, completes measurement.
Judgment criteria: when area percentage is less than 0.2%, then it is judged as qualified.
The beneficial effects of the present invention are: be based on Image Pro-plus software, by test photo binary conversion treatment,
Quantitatively propose apparent mass of clear concrete detection means；For faced concrete surface bubble area, one kind is proposed
Simple and easy measurement method, this method accuracy is higher, and error is less than 1%；It is quantitative for the surface chromatic aberration of clear-water concrete
Describe people naked eyes judge colour-difference away from foundation；The technology has certain guidance to other clear-water concrete detection projects
Property meaning.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of clear-water concrete bubble detecting method, which comprises the following steps:
The acquisition of S1, image: cleaning 3-4 times faced concrete surface with deionized water repeatedly, removes surface dirt, uses height
Clear digital camera takes pictures sampling to faced concrete surface；
The determination of S2, smallest sample number: according to formulaIt is calculated, whereinFor acceptable error level,=1.96,To calculate standard deviation；
S3, the processing of image local self-adaption binaryzation: by the adjusting of RGB threshold values, by clear-water concrete matrix in picture and clearly
Water coagulation soil blibbing disintegration；
The calculating of S4, bubble area and its occupied area percentage: using the measure function of Image Pro-plus software,
Area parameter is selected, measure button is then clicked, completes measurement.
2. a kind of clear-water concrete bubble detecting method according to claim 1, which is characterized in that in the S1, clapping
According to the bubble that can identify of naked eyes is carried out colouring processing with marking pen before, or Image Pro- is utilized after obtaining photo
Plus software paints bubble.
3. a kind of clear-water concrete bubble detecting method according to claim 1, which is characterized in that in the S3, RGB valve
Value is an on-fixed number, and different pictures has different colorations, slowly to adjust in software, until adjusting to naked eyes
Visible bubble and matrix show different colours.
4. a kind of clear-water concrete bubble detecting method according to claim 1, which is characterized in that in the S3, bubble
Black is presented in clear-water concrete matrix after disintegration, and white is presented in blibbing.
5. a kind of clear-water concrete bubble detecting method according to claim 1, which is characterized in that in the S4, area
Unit is pixel and square metre one such.
6. a kind of clear-water concrete bubble detecting method according to claim 1, which is characterized in that qualified in the S4
Judgment criteria be then to be judged as qualified when area percentage is less than 0.2%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111060521A (en) * | 2019-12-31 | 2020-04-24 | 中国水利水电第十四工程局有限公司 | Method for detecting quantity and area of bubbles on surface of precast concrete T beam |
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Cited By (2)
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| CN111060521A (en) * | 2019-12-31 | 2020-04-24 | 中国水利水电第十四工程局有限公司 | Method for detecting quantity and area of bubbles on surface of precast concrete T beam |
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Application publication date: 20190820 |