CN113391057A - Concrete surface hole defect characterization equipment and use method thereof - Google Patents
Concrete surface hole defect characterization equipment and use method thereof Download PDFInfo
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- CN113391057A CN113391057A CN202110724893.4A CN202110724893A CN113391057A CN 113391057 A CN113391057 A CN 113391057A CN 202110724893 A CN202110724893 A CN 202110724893A CN 113391057 A CN113391057 A CN 113391057A
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- 230000007547 defect Effects 0.000 title claims abstract description 46
- 238000012512 characterization method Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000000523 sample Substances 0.000 claims abstract description 144
- 238000012545 processing Methods 0.000 abstract description 7
- 238000005286 illumination Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
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Abstract
The invention discloses a concrete surface hole defect characterization device and a use method thereof, the device comprises a frame body, grid paper is positioned and laid on the front side of the frame body, a probe box is matched with the back side in a sliding manner, grids on the grid paper are uniformly distributed in a rectangular array, probes and first springs are uniformly distributed on the probe box in a rectangular array, the heads of the probes penetrate out of the probe box in a sliding manner, the tails of the probes do not fall off the probe box and are pressed by the corresponding first springs, the grids on the grid paper correspond to the probes on the probe box one by one, the heads of the probes can contact the corresponding grids on the grid paper from the back side when the probe box is pressed, the grid paper is selectively replaced according to the required grid distribution density, and the probe box is selectively replaced according to the required probe size and distribution density. The method is simple to operate, high in accuracy, suitable for air hole defects of various sizes, free of influences of environmental factors such as illumination and the like, independent of professional software and data processing equipment and low in use threshold.
Description
Technical Field
The invention belongs to the field of concrete quality testing, and particularly relates to concrete surface hole defect characterization equipment and a use method thereof.
Background
The holes, which are the most common defects in the surface defects of concrete, cannot be completely eliminated generally, but have a great influence on the apparent quality of the concrete, and particularly, the holes of the clear water finish concrete need to be strictly controlled. At present, there are two characterization methods for concrete surface holes:
1. the scale is adopted for measurement, and the characterization is carried out in a manual counting mode. The method has the advantages of overlarge manual operation amount, low efficiency, difficulty in controlling the measurement range, repeated counting and meter leakage, small size of most holes and low reading precision by adopting the graduated scale.
2. And counting by adopting photographing and computer graphic processing. The efficiency of the method is obviously improved compared with that of manual counting, but because photographing is needed, the representation effect of the method is influenced by series factors such as ambient illumination conditions, photographing modes, photographing hardware and the like.
Disclosure of Invention
The invention aims to provide concrete surface hole defect characterization equipment and a use method thereof, which are simple to operate, high in accuracy, suitable for air hole defects of various sizes, free of influence of environmental factors such as illumination and the like, independent of professional software and data processing equipment and low in use threshold.
The technical scheme adopted by the invention is as follows:
the utility model provides a concrete surface hole defect characterization equipment, which comprises a frame body, the front location of framework is spread and is had latticed paper, back sliding fit has the probe box, the square on the latticed paper is the rectangular array equipartition, it has probe and first spring to be the rectangular array equipartition on the probe box, probe box is worn out to the head sliding fit of probe, the afterbody does not deviate from probe box and is compressed tightly by the first spring that corresponds separately, square on the latticed paper and the probe one-to-one on the probe box, probe head can follow the square that corresponds on the back contact latticed paper when pressing the probe box, latticed paper is selected to be changed according to required square distribution density, the probe box is selected to be changed according to required probe size and distribution density.
Furthermore, a second spring is arranged on the frame body, the second spring is pressed by the probe box when the probe box is pressed, and the second spring drives the probe box to reset after the probe box is loosened.
Further, the second spring is accommodated in a sliding groove of the frame body, and the probe box is located in the sliding groove without falling off.
Further, the probe box includes the box body and trades the dress body, and the sliding fit that the box body does not deviate from is on the framework, trades dress body detachable and establishes on the box body, and the probe is installed on trading the dress body.
Further, the diameter of the probe is 0.1 mm-10 mm.
Further, the center-to-center spacing of adjacent probes is no greater than five probe diameters.
Furthermore, the square grids and the array shape of the probes are square, and the grid paper is fully distributed on the square grids.
Further, the first spring is accommodated in a sliding groove of the probe box, and the tail part of the probe is located in the sliding groove without falling out.
Furthermore, in the initial state, the exposed length of the probe is not more than 10mm, and the distance between the exposed end of the probe and the mesh paper is 5-100 mm.
The use method of the concrete surface hole defect characterization equipment comprises the steps of determining the grid distribution density, the probe size and the distribution density according to the size of a hole defect to be recorded, replacing grid paper according to the required grid distribution density, and replacing a probe box according to the required probe size and distribution density; selecting and identifying a position to be characterized; the grid paper is attached to a position to be represented, the probe box is pressed, the probe contacts a corresponding grid on the grid paper from the back side, when the hole defect is larger than the size of the probe, the probe continues to advance under the action of the first spring to puncture the corresponding grid, and when the hole defect does not exist or is smaller than the size of the probe, the probe cannot continue to advance; and taking down the grid paper, and counting the punctured squares to obtain a quantitative characterization result of the hole defects.
The invention has the beneficial effects that:
according to the invention, the quantitative characterization result of the hole defect can be obtained only by selecting the grid paper and the probe box, pressing the probe box and counting the punctured squares on the grid paper, so that the method is simple to operate, is suitable for quantitative characterization of the pore defect of each size, has high accuracy of the characterization result, is not influenced by environmental factors such as illumination and the like, does not depend on professional software and data processing equipment, is simple in data processing and has a low use threshold.
Drawings
FIG. 1 is a schematic structural diagram of a concrete surface hole defect characterization device in an embodiment of the invention.
In the figure: 1-a frame body; 2-a second spring; 3-a probe box; 4-a first spring; 5-a probe; 6-mesh paper.
Detailed Description
The invention is further described below with reference to the figures and examples.
As shown in fig. 1, a concrete surface hole defect characterization equipment, including framework 1, framework 1's front location has laid latticed paper 6, back sliding fit has probe box 3, the square on latticed paper 6 is the rectangle array equipartition, it has probe 5 and first spring 4 to be the rectangle array equipartition on the probe box 3, probe 5's head sliding fit wears out probe box 3, the afterbody does not deviate from probe box 3 and is compressed tightly by the first spring 4 that corresponds respectively, square on the latticed paper 6 and the probe 5 on the probe box 3 one-to-one, probe 5 head can follow the square that corresponds on the back latticed paper 6 when pressing probe box 3, latticed paper 6 selects to change according to required square distribution density, contact net box 3 selects to change according to required probe 5 size and distribution density.
As shown in fig. 1, in this embodiment, a second spring 2 is disposed on the frame body 1, when the probe box 3 is pressed, the probe box 3 presses the second spring 2, and after the probe box 3 is released, the second spring 2 drives the probe box 3 to return. The second spring 2 can provide a restoring force for the probe box 3 and can also prevent the probe 5 from mistakenly puncturing the mesh paper 6 before pressing.
As shown in fig. 1, in the present embodiment, the second spring 2 is accommodated in a slide groove of the frame body 1, and the probe cassette 3 is located in the slide groove without coming off. The sliding groove provides a sliding space for the probe box 3, avoids the probe box from deviating from the sliding groove, can also accommodate the second spring 2, and plays a role in limiting and protecting.
As shown in fig. 1, in the present embodiment, the probe case 3 includes a case body and a refill body, the case body is slidably fitted to the frame body 1 without being detached, the refill body is detachably provided on the case body, and the probe 5 is attached to the refill body. When the probe box 3 is selected and replaced according to the required size and distribution density of the probes 5, the whole probe box is not required to be replaced, and only the replacing body is replaced, so that the time is saved.
As shown in fig. 1, in the present embodiment, the first spring 4 is accommodated in a slide groove of the probe case 3, and the tail of the probe 5 is located in the slide groove without being released. The spout both provides the sliding space for probe 5, has avoided it to deviate from, can also hold first spring 4, has played spacing and guard action.
In this embodiment, the diameter of the probe 5 is 0.1mm to 10 mm.
In the present embodiment, the center-to-center distance between adjacent probes 5 is not more than five times the diameter of the probe 5, and if the center-to-center distance is too large, the characterization accuracy is lowered.
In this embodiment, the grid and the array of the probes 5 are square, and the grid is fully covered with the mesh paper, so as to conveniently represent the selected representation positions.
In this embodiment, in the initial state, the exposed length of the probe 5 does not exceed 10mm, and the distance between the exposed end of the probe 5 and the mesh paper 6 is 5mm to 100 mm.
In this embodiment, the length of the second spring 2 in its natural state is not less than 1.2 times the maximum distance between the frame 1 and the probe case 3 when they slide relatively, so as to ensure that they are in a pressed state at all times. The length of the first spring 4 in a natural state is not less than 1.2 times of the maximum distance between the probe box 3 and the probe 5 when the probes slide relatively, so that the first spring is ensured to be in a pressed state at any time.
The use method of the concrete surface hole defect characterization equipment comprises the steps of determining the square grid distribution density, the size of the probe 5 and the distribution density according to the size of a hole defect to be recorded, replacing the grid paper 6 according to the required square grid distribution density, and replacing the probe box 3 according to the required size and the distribution density of the probe 5; selecting and identifying a position to be characterized; the grid paper 6 is attached to a position to be represented, the probe box 3 is pressed, the probes 5 contact corresponding grids on the grid paper 6 from the back side, when the hole defects are larger than the size of the probes 5, the probes 5 continuously advance under the action of the first springs 4 to puncture the corresponding grids, and when the hole defects do not exist or are smaller than the size of the probes 5, the probes 5 cannot continuously advance; and taking off the grid paper 6, and counting the punctured grids to obtain a quantitative characterization result of the hole defects. The following three sets of experiments:
in the first group, the defect of a hole with the size of more than 0.5mm is characterized, the size of a selected probe 5 is 0.5mm, the center distance is 2mm, the size of grid paper 6 is 200mm multiplied by 200mm, and the number of probes and measuring points is 10000. The characterized surface was inspected and the holes on the mesh paper 6 were counted, and the number of holes was 776 and the defect value of holes was 7.76%.
And in the second group, the defects of holes with the size larger than 1mm are characterized, the size of the selected probe 5 is 1mm, the center distance is 2mm, the size of the mesh paper 6 is 200mm multiplied by 200mm, and the number of probes and the number of measuring points are 10000. And detecting the characterization surface, counting the holes on the mesh paper 6, and recording that the number of the holes is 315 and the defect value of the holes is 3.15%.
And in the second group, the defects of holes with the size larger than 2mm are characterized, the size of a selected probe 5 is 2mm, the center distance is 4mm, the size of the mesh paper 6 is 200mm multiplied by 200mm, and the number of probes and the number of measuring points are 2500. The characterized surface is detected, the holes on the mesh paper 6 are counted, the number of the holes is 49, and the defect value of the holes is 1.9%.
According to the invention, the quantitative characterization result of the hole defect can be obtained only by selecting the grid paper 6 and the probe box 3, pressing the probe box 3 and counting the punctured squares on the grid paper 6, so that the operation is simple, the method is suitable for quantitative characterization of the pore defect of each size, the characterization result is accurate and high, the method is not influenced by environmental factors such as illumination and the like, no professional software and data processing equipment are relied on, the data processing is simple, and the use threshold is low.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A concrete surface hole defect characterization equipment which characterized in that: including the framework, the front location of framework is spread and is had latticed paper, back sliding fit has the probe box, check on the latticed paper is the rectangular array equipartition, it has probe and first spring to be the rectangular array equipartition on the probe box, probe box is worn out to the head sliding fit of probe, the afterbody does not deviate from probe box and is compressed tightly by the first spring that corresponds separately, check on the latticed paper and the probe box on the probe box one-to-one, probe head can follow the check that corresponds on the back contact latticed paper when pressing probe box, the latticed paper is selected to be changed according to required check distribution density, the probe box is selected to be changed according to required probe size and distribution density.
2. The concrete surface hole defect characterization device of claim 1, wherein: the probe box is pressed by the second spring when the probe box is pressed, and the second spring drives the probe box to reset after the probe box is loosened.
3. The concrete surface hole defect characterization device of claim 2, wherein: the second spring is accommodated in the sliding groove of the frame body, and the probe box is not separated from the sliding groove.
4. The concrete surface hole defect characterization device of claim 1, wherein: the probe box comprises a box body and a replacing body, the box body is not separated and is in sliding fit with the frame body, the replacing body is detachably arranged on the box body, and the probe is arranged on the replacing body.
5. The concrete surface hole defect characterization device of claim 1, wherein: the diameter of the probe is 0.1 mm-10 mm.
6. The concrete surface hole defect characterization device of claim 1, wherein: the center-to-center spacing of adjacent probes is no greater than five probe diameters.
7. The concrete surface hole defect characterization device of claim 1, wherein: the square grids and the array shape of the probes are square, and the grid paper is fully distributed in the square grids.
8. The concrete surface hole defect characterization device of claim 1, wherein: the first spring is accommodated in a sliding groove of the probe box, and the tail part of the probe is not separated and is positioned in the sliding groove.
9. The concrete surface hole defect characterization device of claim 1, wherein: in the initial state, the exposed length of the probe is not more than 10mm, and the distance between the exposed end of the probe and the mesh paper is 5-100 mm.
10. A method of using the apparatus for characterizing the defects of concrete surface cavities according to any of claims 1 to 9, wherein: determining the grid distribution density, the probe size and the distribution density according to the size of the hole defect to be recorded, replacing grid paper according to the required grid distribution density, and replacing a probe box according to the required probe size and the required distribution density; selecting and identifying a position to be characterized; the grid paper is attached to a position to be represented, the probe box is pressed, the probe contacts a corresponding grid on the grid paper from the back side, when the hole defect is larger than the size of the probe, the probe continues to advance under the action of the first spring to puncture the corresponding grid, and when the hole defect does not exist or is smaller than the size of the probe, the probe cannot continue to advance; and taking down the grid paper, and counting the punctured squares to obtain a quantitative characterization result of the hole defects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110724893.4A CN113391057B (en) | 2021-06-29 | 2021-06-29 | Concrete surface hole defect characterization equipment and use method thereof |
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| CN202110724893.4A CN113391057B (en) | 2021-06-29 | 2021-06-29 | Concrete surface hole defect characterization equipment and use method thereof |
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| CN113391057A true CN113391057A (en) | 2021-09-14 |
| CN113391057B CN113391057B (en) | 2022-09-09 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005050189A1 (en) * | 2003-11-21 | 2005-06-02 | Hochschule für Technik und Wirtschaft Dresden (FH) | Device and method for the detection of defects in reinforcements of concrete components |
| CN1793901A (en) * | 2005-12-23 | 2006-06-28 | 上海宝钢工业检测公司 | Large casting network location tracing detection method |
| US20090229363A1 (en) * | 2006-06-02 | 2009-09-17 | Bam Bundesanstalt Fur Material-Forschung Und- Prufung | Method for Detecting and Classifying Defects in Building Components by Means of Ultrasound |
| CN202351237U (en) * | 2011-08-30 | 2012-07-25 | 山东农业大学 | Defect detecting probe for concrete wall with wood-wool cement board as stripper-free board |
| CN108896746A (en) * | 2018-07-06 | 2018-11-27 | 中南大学 | Non-fragment orbit self-compacting concrete filling layer defects quantitative testing device and method |
| CN109270163A (en) * | 2018-09-14 | 2019-01-25 | 辽宁省交通规划设计院有限责任公司 | A kind of concrete detection device |
| CN209399900U (en) * | 2019-01-17 | 2019-09-17 | 中国华冶科工集团有限公司 | Measurer for thickness when concreting |
| CN110333293A (en) * | 2019-08-12 | 2019-10-15 | 河海大学常州校区 | A kind of method of the excitation of square mesh phase controlled ultrasonic array and detection concrete defect |
-
2021
- 2021-06-29 CN CN202110724893.4A patent/CN113391057B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005050189A1 (en) * | 2003-11-21 | 2005-06-02 | Hochschule für Technik und Wirtschaft Dresden (FH) | Device and method for the detection of defects in reinforcements of concrete components |
| CN1793901A (en) * | 2005-12-23 | 2006-06-28 | 上海宝钢工业检测公司 | Large casting network location tracing detection method |
| US20090229363A1 (en) * | 2006-06-02 | 2009-09-17 | Bam Bundesanstalt Fur Material-Forschung Und- Prufung | Method for Detecting and Classifying Defects in Building Components by Means of Ultrasound |
| CN202351237U (en) * | 2011-08-30 | 2012-07-25 | 山东农业大学 | Defect detecting probe for concrete wall with wood-wool cement board as stripper-free board |
| CN108896746A (en) * | 2018-07-06 | 2018-11-27 | 中南大学 | Non-fragment orbit self-compacting concrete filling layer defects quantitative testing device and method |
| CN109270163A (en) * | 2018-09-14 | 2019-01-25 | 辽宁省交通规划设计院有限责任公司 | A kind of concrete detection device |
| CN209399900U (en) * | 2019-01-17 | 2019-09-17 | 中国华冶科工集团有限公司 | Measurer for thickness when concreting |
| CN110333293A (en) * | 2019-08-12 | 2019-10-15 | 河海大学常州校区 | A kind of method of the excitation of square mesh phase controlled ultrasonic array and detection concrete defect |
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