CN109685759A - A kind of acceleration concrete cracking equipment and its test method - Google Patents
A kind of acceleration concrete cracking equipment and its test method Download PDFInfo
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- G—PHYSICS
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- 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
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Abstract
The invention discloses a kind of acceleration concrete cracking detection complete set of equipments and detection methods, including symmetrical double trapezoid concrete cracking equipment, hot dry wind harsh environment analog machine, high-resolution amplification imaging device and Computer Image Processing module.Compared with prior art, the present invention makes concrete generate stress concentration in specified region in hardening process using symmetrical double trapezoid concrete cracking equipment, to specify region that single line crack is presented in concrete, concrete is set, in dry, quick desiccation, to accelerate concrete cracking in hardening process using hot dry wind harsh environment analog machine.
Description
Technical field
The present invention relates to a kind of concrete test equipment and technology, specially a kind of acceleration concrete cracking detects complete set of equipments
And detection method, belong to concrete test equipment and technology application field.
Background technique
Cracking is the key factor for influencing concrete durability, and the destruction of concrete major part structure is the extension due to crack
Caused by, it rests on measurement fracture length and width these one-dimensional datas mostly about On The Test Technology of Concrete Crack at present, surveys
It is larger to measure subjective factor, cannot intuitively and accurately reflect the cracking state of entire concrete；Crack image and area etc. are two-dimentional
Data are able to reflect more data informations in crack, research and develop high perdurable concrete for guidance and are of great significance, but at present also
The battery of tests technology that concrete cracking can quickly and easily be made without one kind and crack two-dimensional signal complete parttion is come out.
In order to more fully understand concrete cracking, the durability of concrete is improved, a kind of concrete rapid crack propagation is researched and developed
Equipment and test method play a significant role, for above situation, on the basis of existing concrete cracking Tachistoscope method
Carry out technological innovation.
Summary of the invention
The purpose of the present invention is to provide a kind of acceleration concrete cracking detection complete set of equipments and detection methods, on solving
State proposed in background technique it is general about On The Test Technology of Concrete Crack mostly rest on measurement fracture length and width these
One-dimensional data, measurement subjective factor is larger, cannot intuitively and accurately reflect that the cracking state of entire concrete cannot be good
Meet the use demand problem of people.
To achieve the above object, the invention provides the following technical scheme: a kind of acceleration concrete cracking detects complete set of equipments,
Amplify imaging device including symmetrical double trapezoid concrete cracking equipment, hot dry wind harsh environment analog machine, display, high-resolution
And computer processing module, the symmetrical double trapezoid concrete cracking equipment include stainless steel base, symmetric double ladder type stainless steel
Protective edge and the edge of a knife, the symmetric double ladder type stainless steel protective edge are detachably mounted on the stainless steel base by screw, institute
It states the edge of a knife and is fixedly connected on symmetric double ladder type stainless steel protective edge middle, the hot dry wind harsh environment analog machine is by warm
Blower, semiclosed stainless steel cabinet, incandescent lamp tube, temp probe, moisture probe and wind speed probe composition, the air-heater welding
On the semiclosed stainless steel cabinet inner sidewall, the incandescent lamp tube spiral is fixed on the semiclosed stainless steel cabinet inner wall
Top surface, the temp probe, moisture probe and wind speed probe are respectively welded on the semiclosed stainless steel cabinet inner sidewall,
The semiclosed stainless steel cabinet side wall is exported equipped with air-heater, and spiral is fixed on the semiclosed stainless steel cabinet lateral wall
There is display screen, the temp probe, moisture probe and wind speed probe pass through conducting wire respectively and be connected with the display screen.
Preferably, the air-heater by conducting wire respectively with incandescent lamp tube, temp probe, moisture probe and wind speed probe it
Between electrically and downlink connection.
Preferably, the temperature sensing range of the temp probe is 0-100 DEG C, the humidity investigative range of the moisture probe
For 0-100%RH, the wind speed investigative range of the wind speed probe is 0-5m/s.
Preferably, the high-resolution amplification imaging device and the computer processing module are electrically connected by conducting wire, institute
Stating high-resolution amplification imaging device is specially adjustable focal length high-resolution camera, the model of the adjustable focal length high-resolution camera
For USB vision positioning industrial camera RS-60 camera lens.
Preferably, the computer processing module is using gray proces and ImageJ Area computing technology.
A kind of acceleration concrete cracking detection complete set of equipments detection method, includes the following steps,
A, true color high-resolution enlarged photograph is processed into 8 gray scale pictures by Image J software；
B, crack is different from concrete back end gray scale, and 8 gray scale pictures are via embedded ImageJ software manual setting gray scale
Threshold value determines value between 0~150, so that crack image plucks out in concrete back end, to facilitate independent fracture information
Carry out calculation processing；
C, it scratches the crack image separated out and flaw area is calculated by the pixel computing function of ImageJ；
D, function is described by ImageJ software and describes single fracture strike, strike length, i.e. crack are calculated by pixel
Length；
E, it is divided by by area and length and calculates fracture width information automatically；
F, via above step, the cracking degree in crack is obtained.
Compared with prior art, beneficial effects of the present invention are as follows:
1. making concrete generate stress in specified region in hardening process using symmetrical double trapezoid concrete cracking equipment
It concentrates, to specify region that single line crack is presented in concrete, substantially increases concrete cracking degree.
2. making concrete in hardening process in dry, quick dehydration shape using hot dry wind harsh environment analog machine
State accelerates concrete cracking.
3. acquiring concrete cracking area fractures image using high-resolution amplification imaging device, realize to distress in concrete
Realtime graphic monitoring, Gao Fang great high-resolution imaging substantially increase the visualization in crack.
4. carrying out gray proces using ImageJ software fracture image, pluck out crack from concrete back end, significantly
Precision is improved, pixel measuring and calculating is carried out to the crack image obtained after gray proces, by the two-dimensional signal in crack with data shape
Formula is presented, and is substantially reduced error, is improved precision.
Detailed description of the invention
Fig. 1 is the entirety perspective view of the embodiment of the present invention.
Fig. 2 is main view external structure schematic diagram of the present invention.
Fig. 3 is the symmetrical double trapezoid concrete cracking device structure schematic diagram of the present invention.
Fig. 4 is hot dry wind harsh environment analog machine flowage structure schematic diagram of the present invention.
Fig. 5 is high-resolution of the present invention amplification imaging equipment flowsheet structural schematic diagram.
Fig. 6 is image processing module flowage structure schematic diagram of the present invention.
Fig. 7 is knife edge structure schematic diagram of the present invention.
In figure: 1, symmetrical double trapezoid concrete cracking equipment, 2, hot dry wind harsh environment analog machine, 101, stainless steel bottom
Seat, 102, symmetric double ladder type stainless steel protective edge, 103, the edge of a knife, 104, screw, 201, air-heater, 202, semiclosed stainless steel case
Body, 203, incandescent lamp tube, 204, temp probe, 205, moisture probe, 206, wind speed probe, 3, air-heater outlet, 4, high-resolution
Amplify imaging device, 401, adjustable focal length high-resolution camera, 5, Computer Image Processing module, 6, display screen.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower", "inner" and "outside" or
Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second " are used for description purposes only, and should not be understood as indicating
Or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be and be directly connected to, can also be indirectly connected with, be can be by intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
Fig. 1-7 is please referred to, the present invention provides a kind of technical solution: a kind of acceleration concrete cracking detection complete set of equipments, packet
Include symmetrical double trapezoid concrete cracking equipment 1, hot dry wind harsh environment analog machine 2, display 3, high-resolution amplification imaging set
Standby 4, Computer Image Processing module 5, the symmetrical double trapezoid concrete cracking equipment 1 include stainless steel base 101, symmetric double
Ladder type stainless steel protective edge 102 and the edge of a knife 103, the symmetric double ladder type stainless steel protective edge 102 are removably fixed by screw 104
On the stainless steel base 101, the edge of a knife 103 is fixedly connected on 102 middle of symmetric double ladder type stainless steel protective edge.
The edge of a knife 103, stainless steel base is arranged in trapezoidal bottom surface middle position in the symmetrical double trapezoid concrete cracking equipment 1
101 and symmetric double ladder type stainless steel protective edge 102 use screw-type detachable structure, in concrete coagulation hardening process, symmetrical
It is formed under the collective effect of double ladder type stainless steel protective edges 102 and the edge of a knife 103 in 102 base surface area of symmetric double ladder type stainless steel protective edge
Stress concentration region makes to crack in the region in single line in course of hardening.
The hot dry wind harsh environment analog machine 2 is by air-heater 201, semiclosed stainless steel cabinet 202, incandescent lamp tube
203, temp probe 204, moisture probe 205 and wind speed probe 206 form, the air-heater 201 be welded on it is described it is semiclosed not
It becomes rusty on 202 inner sidewall of steel cabinet, hot wind is made to flow out cabinet from semiclosed stainless steel cabinet open side；203 spiral shell of incandescent lamp tube
It is rotated with and is scheduled on the 202 inner wall top surface of semiclosed stainless steel cabinet, by irradiation concrete to enhance crack and concrete table
Face gray scale difference；The temp probe 204, moisture probe 205 and wind speed probe 206 are respectively welded at the semiclosed stainless steel case
On 202 inner sidewall of body, semiclosed 202 side wall of stainless steel cabinet is equipped with air-heater outlet 3, the semiclosed stainless steel case
Spiral is fixed with display screen 6 on 202 lateral wall of body, and the temp probe 204, moisture probe 205 and wind speed probe 206 lead to respectively
It crosses conducting wire to be connected with the display screen 6, with the temperature and humidity and wind speed in the semiclosed stainless steel cabinet of real-time detection.
The air-heater 201 by conducting wire respectively with incandescent lamp tube 203, temp probe 204, moisture probe 205 and wind speed
Electrical and downlink connection between probe 206.
The temperature sensing range of the temp probe 204 is 0-100 DEG C.
The humidity investigative range of the moisture probe 205 is 0-100%RH.
The wind speed investigative range of the wind speed probe 206 is 0-5m/s.
The high-resolution amplification imaging device 4 is specially adjustable focal length high-resolution camera 401, and the high-resolution zooms into
It, can by the control of Computer Image Processing module 5 as being electrically connected between equipment 4 and Computer Image Processing module 5 by conducting wire
The high-resolution camera 401 that focalizes is sampled the true color high-resolution enlarged photograph for taking pictures to obtain different time points, and photo is by counting
The processing analysis of calculation machine image processing module 5.
The model USB vision positioning industrial camera RS-60 camera lens of the adjustable focal length high-resolution camera 401.
Described image handles computing module 4 using gray proces and ImageJ Area computing technology.
Using wooden handcart will vibrate in symmetrical double trapezoid concrete cracking equipment 1, concrete after molding is pushed into hot dry wind
In harsh environment analog machine 2, by Computer Image Processing module 5 and high-resolution amplify the wired connection of imaging device 4 come
Control adjustable focal length high-resolution camera 401 carries out capture and takes pictures, and the high-resolution of different time points is true in available dehiscence process
Colored crack picture, in a computer, each photo divides in crack with ImageJ gray proces technology from image for storage
From by pixel calculating flaw area, length, mean breadth information, thus different time points during obtaining concrete cracking
Crack data information.
A kind of acceleration concrete cracking detection complete set of equipments detection method, includes the following steps,
A, true color high-resolution enlarged photograph is processed into 8 gray scale pictures by Image J software；
B, crack is different from concrete back end gray scale, and 8 gray scale pictures are via embedded ImageJ software manual setting gray scale
Threshold value determines value between 0~150, so that crack image plucks out in concrete back end, to facilitate independent fracture information
Carry out calculation processing；
C, it scratches the crack image separated out and flaw area is calculated by the pixel computing function of ImageJ；
D, function is described by ImageJ software and describes single fracture strike, strike length, i.e. crack are calculated by pixel
Length；
E, it is divided by by area and length and calculates fracture width information automatically；
F, via above step, the cracking degree in crack is obtained.
Embodiment one
The mass fraction of concrete is as follows:
330 parts of cement, 1410 parts of stone, 605 parts of sand, 170 parts of water,
To vibrate in the symmetrical double trapezoid concrete cracking equipment 1 of the concrete mixed by the above mass fraction push-in,
It forms pusher to be sent into hot dry wind harsh environment analog machine 2, and carries out capture bat using adjustable focal length high-resolution camera 401
According to, photo by by wire transmission, into Computer Image Processing module 5, Computer Image Processing module 5 analyzes photo,
As a result as shown in the table:
1 crack occurrence degree table of table
| Flaw area/mm2 | Fracture length/mm | Crack occurrence width/mm | |
| Embodiment one | 42.14 | 90.801 | 0.464 |
Embodiment two
The mass fraction of concrete is as follows:
330 parts of cement, 1410 parts of stone, 605 parts of sand, 160 parts of water,
To vibrate in the symmetrical double trapezoid concrete cracking equipment 1 of the concrete mixed by the above mass fraction push-in,
It forms pusher to be sent into hot dry wind harsh environment analog machine 2, and carries out capture bat using adjustable focal length high-resolution camera 401
According to photo is by by wire transmission, into computer processing module 5, Computer Image Processing module 5 analyzes photo, as a result
It is as shown in the table:
2 embodiment of table, two crack occurrence degree table
| Flaw area/mm2 | Fracture length/mm | Crack occurrence width/mm | |
| Embodiment two | 37.61 | 109.075 | 0.345 |
Embodiment three
The mass fraction of concrete is as follows:
330 parts of cement, 1410 parts of stone, 605 parts of sand, 150 parts of water,
To vibrate in the symmetrical double trapezoid concrete cracking equipment 1 of the concrete mixed by the above mass fraction push-in,
It forms pusher to be sent into hot dry wind harsh environment analog machine 2, and carries out capture bat using adjustable focal length high-resolution camera 401
According to, photo by by wire transmission, into Computer Image Processing module 5, Computer Image Processing module 5 analyzes photo,
As a result as shown in the table:
3 embodiment of table, three crack occurrence degree table
| Flaw area/mm2 | Fracture length/mm | Crack occurrence width/mm | |
| Embodiment three | 32.58 | 103.335 | 0.315 |
4 embodiment test material parameter list of table
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of acceleration concrete cracking detects complete set of equipments, it is characterised in that: including symmetrical double trapezoid concrete cracking equipment
(1), hot dry wind harsh environment analog machine (2), high-resolution amplification imaging device (4) and Computer Image Processing module (5), institute
State symmetrical double trapezoid concrete cracking equipment (1) include stainless steel base (101), symmetric double ladder type stainless steel protective edge (102) and
The edge of a knife (103), the symmetric double ladder type stainless steel protective edge (102) are detachably mounted to the stainless steel by screw (104)
On pedestal (101), the edge of a knife (103) is fixedly connected on symmetric double ladder type stainless steel protective edge (102) middle, described dry
Hot wind harsh environment analog machine (2) is by air-heater (201), semiclosed stainless steel cabinet (202), incandescent lamp tube (203), temperature
Pop one's head in (204), moisture probe (205) and wind speed probe (206) form, the air-heater (201) be welded on it is described it is semiclosed not
It becomes rusty on steel cabinet (202) inner sidewall, incandescent lamp tube (203) spiral is fixed in the semiclosed stainless steel cabinet (202)
Wall top surface, the temp probe (204), moisture probe (205) and wind speed probe (206) be respectively welded at it is described it is semiclosed not
It becoming rusty on steel cabinet (202) inner sidewall, semiclosed stainless steel cabinet (202) side wall is equipped with air-heater and exports (3), and described half
Spiral is fixed with display screen (6) on closing stainless steel cabinet (202) lateral wall, the temp probe (204), moisture probe
(205) and wind speed probe (206) is connected by conducting wire with the display screen (6) respectively.
2. a kind of acceleration concrete cracking according to claim 1 detects complete set of equipments, it is characterised in that: the air-heater
(201) by conducting wire respectively with incandescent lamp tube (203), temp probe (204), moisture probe (205) and wind speed probe (206) it
Between electrically and downlink connection.
3. according to claim 1 or a kind of acceleration concrete cracking as claimed in claim 2 detects complete set of equipments, feature exists
In: the temperature sensing range of the temp probe (204) is 0-100 DEG C, and the humidity investigative range of the moisture probe (205) is
0-100%RH, the wind speed investigative range of the wind speed probe (206) are 0-5m/s.
4. a kind of acceleration concrete cracking according to claim 1 detects complete set of equipments, it is characterised in that: the high-resolution
Amplification imaging device (4) is electrically connected with the Computer Image Processing module (5) by USB output line, and the high-resolution is put
Big imaging equipment (4) is specially adjustable focal length high-resolution camera (401), the adjustable focal length high-resolution camera (401)
Model USB vision positioning industrial camera RS-60 camera lens, 5,000,000 pixel of camera resolution, 100 times of amplification factor.
5. a kind of acceleration concrete cracking according to claim 4 detects complete set of equipments, it is characterised in that: the computer
Image processing module (5) is using gray proces and ImageJ Area computing technology.
6. a kind of acceleration concrete cracking according to claim 1 detects complete set of equipments detection method, it is characterised in that: packet
Include following steps,
A, true color high-resolution enlarged photograph is processed into 8 gray scale pictures by Image J software；
B, crack is different from concrete back end gray scale, and 8 gray scale pictures are via embedded ImageJ software manual setting gray threshold
Value is determined between 0~150, so that crack image plucks out in concrete back end, to facilitate independent fracture information to carry out
Calculation processing；
C, it scratches the crack image separated out and flaw area is calculated by the pixel computing function of ImageJ；
D, function is described by ImageJ software and describes single fracture strike, strike length, i.e. fracture length are calculated by pixel；
E, it is divided by by area and length and calculates fracture width information automatically；
F, via above step, the cracking degree in crack is obtained.
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028541A (en) * | 1998-07-10 | 2000-01-28 | Ishikawajima Harima Heavy Ind Co Ltd | Crack detection method for concrete surface |
| CN101726493A (en) * | 2009-12-02 | 2010-06-09 | 中国建筑材料科学研究总院 | Method and device for detecting shrinkage and cracking performance of cement-based material |
| CN202471499U (en) * | 2012-02-22 | 2012-10-03 | 北京中企卓创科技发展有限公司 | Concrete early-stage anti-cracking ability testing device |
| US20130034298A1 (en) * | 2011-08-04 | 2013-02-07 | University Of Southern California | Image-based crack detection |
| CN203053970U (en) * | 2013-01-29 | 2013-07-10 | 长安大学 | Circular test device for inducing and accelerating cracking of concrete |
| CN103257220A (en) * | 2012-02-22 | 2013-08-21 | 北京中企卓创科技发展有限公司 | Concrete early-stage crack resistance test device and test method |
| CN103400139A (en) * | 2013-07-04 | 2013-11-20 | 中南大学 | Method for identifying concrete crack characteristic information |
| CN103760036A (en) * | 2014-01-08 | 2014-04-30 | 黄河水利委员会黄河水利科学研究院 | Testing method of steel fiber reinforced concrete fracture test crack initiation load |
| CN203745464U (en) * | 2013-12-25 | 2014-07-30 | 长安大学 | Concrete crack accelerating tester with controllable condition |
| CN104483330A (en) * | 2014-11-11 | 2015-04-01 | 浙江大学 | Concrete surface crack real-time monitoring system and cracking risk dynamic assessment method |
| CN105784710A (en) * | 2014-12-23 | 2016-07-20 | 桂林电子科技大学 | Concrete bridge crack detection device based on digital image processing |
| JP2017072517A (en) * | 2015-10-08 | 2017-04-13 | 西日本高速道路エンジニアリング四国株式会社 | Detection method of surface crack of concrete |
| CN108007355A (en) * | 2017-10-20 | 2018-05-08 | 西安电子科技大学 | Distress in concrete detection method based on Image distance transform |
-
2018
- 2018-11-05 CN CN201811307327.8A patent/CN109685759B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028541A (en) * | 1998-07-10 | 2000-01-28 | Ishikawajima Harima Heavy Ind Co Ltd | Crack detection method for concrete surface |
| CN101726493A (en) * | 2009-12-02 | 2010-06-09 | 中国建筑材料科学研究总院 | Method and device for detecting shrinkage and cracking performance of cement-based material |
| US20130034298A1 (en) * | 2011-08-04 | 2013-02-07 | University Of Southern California | Image-based crack detection |
| CN202471499U (en) * | 2012-02-22 | 2012-10-03 | 北京中企卓创科技发展有限公司 | Concrete early-stage anti-cracking ability testing device |
| CN103257220A (en) * | 2012-02-22 | 2013-08-21 | 北京中企卓创科技发展有限公司 | Concrete early-stage crack resistance test device and test method |
| CN203053970U (en) * | 2013-01-29 | 2013-07-10 | 长安大学 | Circular test device for inducing and accelerating cracking of concrete |
| CN103400139A (en) * | 2013-07-04 | 2013-11-20 | 中南大学 | Method for identifying concrete crack characteristic information |
| CN203745464U (en) * | 2013-12-25 | 2014-07-30 | 长安大学 | Concrete crack accelerating tester with controllable condition |
| CN103760036A (en) * | 2014-01-08 | 2014-04-30 | 黄河水利委员会黄河水利科学研究院 | Testing method of steel fiber reinforced concrete fracture test crack initiation load |
| CN104483330A (en) * | 2014-11-11 | 2015-04-01 | 浙江大学 | Concrete surface crack real-time monitoring system and cracking risk dynamic assessment method |
| CN105784710A (en) * | 2014-12-23 | 2016-07-20 | 桂林电子科技大学 | Concrete bridge crack detection device based on digital image processing |
| JP2017072517A (en) * | 2015-10-08 | 2017-04-13 | 西日本高速道路エンジニアリング四国株式会社 | Detection method of surface crack of concrete |
| CN108007355A (en) * | 2017-10-20 | 2018-05-08 | 西安电子科技大学 | Distress in concrete detection method based on Image distance transform |
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