CN108982571A - A kind of non-destructive testing armored concrete becomes rusty the method for swollen degree - Google Patents
A kind of non-destructive testing armored concrete becomes rusty the method for swollen degree Download PDFInfo
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- CN108982571A CN108982571A CN201810501040.2A CN201810501040A CN108982571A CN 108982571 A CN108982571 A CN 108982571A CN 201810501040 A CN201810501040 A CN 201810501040A CN 108982571 A CN108982571 A CN 108982571A
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- heat insulating
- insulating box
- armored concrete
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
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Abstract
A kind of non-destructive testing armored concrete becomes rusty the method for swollen degree, and related hardware includes computer and heat insulating box, the thermal infrared imager for connecting scale and being mounted on connection scale end, and thermal infrared imager is connected by data line with computer；Heat insulating box upper layer is equipped with screw type sense channel, and connection scale end is located inside heat insulating box, and heat insulating box is stretched out by screw type sense channel in top；Method particularly includes: the armored concrete region of the selected swollen degree detecting that become rusty simultaneously carries out dust removal process, it controls heat insulating box and reinforced concrete surface is in sealing contact, control infrared hot thermal imaging system three-dimensional position locating in control cabinet body by connecting scale, with detect armored concrete become rusty swollen degree overview and key area.The present invention can reduce thermal infrared imager detect armored concrete become rusty swollen degree take pictures when the influence to infra-red radiation information such as ambient temperature variation, improve the accuracy of detection, realize that armored concrete becomes rusty the non-destructive testing of swollen degree.
Description
Technical field
The present invention relates to a kind of detection method, specifically a kind of non-destructive testing armored concrete becomes rusty the method for swollen degree, belongs to
In civil engineering technical field of nondestructive testing.
Background technique
China is in the traffic engineering such as railway, highway, the viaduct in city, overpass, subway tunnel and water conservancy harbour
It has been spread all over the place with sluice, power station, dock and the harbour that armored concrete is built.At present in China, armored concrete is
Using a kind of most structure type, the overwhelming majority of sum is accounted for, while being also most using reinforced concrete structure in the world
Country.Annual 5 billion cubic meter of build concrete in China, 17,000,000 tons of reinforcing bar of consumption or more, heavy construction is all made of reinforcing bar
Concrete frame structure.The reinforced concrete structure being served in severe erosion environment, is corroded for a long time, concrete cover
The protective effect of reinforcing bar is gradually weakened, etching medium (such as chloride ion) is constantly accumulated in rebar surface, destroys rebar surface
Passivating film causes steel bar corrosion.Steel bar corrosion bulk product is usually 2~4 times of corresponding reinforcing bar volume, can be mixed to around reinforcing bar
Solidifying local products give birth to radial compression, and concrete then limits its expansion, and then pressure is generated on reinforcing bar, concrete interface, i.e. steel
Muscle splitting stresses.As steel bar corrosion aggravates, rebar corrosion power constantly increases, and concrete cover circumferential direction tensile stress is caused sharply to increase
Add, crack occurs beyond its ultimate bearing capacity, i.e. corrosive crack.It, can be with extent of steel corrosion after corrosive crack generates
Increase, constantly extension, finally runs through entire concrete cover from inside to outside.Corrosive crack is penetrated through once being formed, it is extraneous harmful
Medium can be directly to up to rebar surface, substantially speed up steel bar corrosion, and total performance is caused quickly to reduce, serious curtailment structure
Service life.Armored concrete rust distending split be concrete structure durability an important critical point.Therefore, steel is accurately detected
Reinforced concrete swollen degree of becoming rusty is to ensure that the basic measures of structure safety, and how accurately to detect armored concrete swollen degree of becoming rusty becomes
Current technical problem urgently to be solved.
Summary of the invention
It becomes rusty swollen degree in view of the above existing problems in the prior art, the present invention provides a kind of non-destructive testing armored concrete
Method rapidly and accurately can examine the swollen degree of armored concrete rust on the basis of not destroying reinforced concrete protective layer
It surveys.
To achieve the goals above, a kind of non-destructive testing armored concrete of the present invention becomes rusty the method for swollen degree, related
Hardware includes computer and heat insulating box, and the thermal infrared imager for connecting scale and being mounted on connection scale end is described infrared
Thermal imaging system is connected by data line with computer；The heat insulating box upper layer is equipped with screw type sense channel, the connection scale
End is located inside heat insulating box, and heat insulating box is stretched out by screw type sense channel in top, and can detect in screw type logical
It is moved in road；Specific detecting step are as follows:
A. the armored concrete region for the swollen degree detecting that become rusty is selected, and reinforced concrete surface is dusted
Processing；
B. according to the size of heat insulating box, on the surface of armored concrete selection area, setting has double face binding function
Heat insulating strip, it is ensured that heat insulating box is in sealing contact with reinforced concrete surface, obstructs external heat source to the intracorporal thermal agitation of hot box；
C. connection scale is manually controlled to move up and down or along screw type sense channel inside heat insulating box, it is red to control
Outer thermal imaging system three-dimensional position locating in heat insulating box, detection armored concrete become rusty the overview of swollen degree；
D. thermal infrared imager by reflect armored concrete become rusty swollen degree color thermal map real-time transmission to computer, according to color
The temperature difference size that color thermal map reflects obtains corrosive crack width, then the rust of armored concrete is analyzed according to corrosive crack method
Swollen degree；
E. the three-dimensional motion for manually controlling connection scale, according to the analysis of step (D) as a result, with thermal infrared imager to reinforcing bar
The concrete more serious region of swollen degree of becoming rusty carries out emphasis detection, and show that the region reinforcing bar mixes by the method for step (D)
Coagulate the swollen degree of rust of soil.
Further, screw type sense channel is equipped with transparent rubber heat insulating strip.
Further, heat insulating box is square, and the connection scale is equipped with the scale that minimum unit is millimeter, and connects
The length of scale is 1.35-1.45 times of heat insulating box side length.
Further, the thermal coefficient of heat insulating box, the heat insulating strip with double face binding function and transparent rubber heat insulating strip
For 0.1-0.15W/ (mk).
Compared with prior art, the present invention by control thermal infrared imager in the intracorporal three-dimensional position of hot box, it is right first
Armored concrete in detection zone carries out whole detection, then carries out local detection to keypoint part, and it is mixed to form detection reinforcing bar
The entirety of the swollen degree of soil rust and the comprehensive detection of local emphasis are coagulated, testing result accuracy height is improved, it is mixed to realize reinforcing bar
The non-destructive testing that solidifying soil rust is swollen reduces thermal infrared imager ambient temperature variation when detecting the swollen degree of armored concrete rust and taking pictures
Deng the influence to infra-red radiation information, the accuracy of testing result is improved.The method of the present invention is simple, easily operated, detection speed
Degree is fast, has wide applicability.
Detailed description of the invention
Fig. 1 is hardware structural diagram of the present invention.
Fig. 2 is heat insulating box top plate schematic diagram.
In figure: 1. computers；2. heat insulating box；3. the heat insulating strip with double face binding function；4. thermal infrared imager；5. connecting
Connect scale；6. screw type sense channel.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As depicted in figs. 1 and 2, a kind of non-destructive testing armored concrete of the present invention becomes rusty the method for swollen degree, related hard
Part includes computer 1 and heat insulating box 2, and the thermal infrared imager 4 for connecting scale 5 and being mounted on connection 5 end of scale is described red
Outer thermal imaging system 4 is connected by data line with computer 1；2 upper layer of heat insulating box is equipped with screw type sense channel 6, the company
It connects 5 end of scale to be located inside heat insulating box 2, heat insulating box 2 is stretched out by screw type sense channel 6 in top, and can be in spiral shell
It is moved in rotation type sense channel 6；Specific detecting step are as follows:
A. the armored concrete region for the swollen degree detecting that become rusty is selected, and reinforced concrete surface is dusted
Processing；
B. according to the size of heat insulating box 2, on the surface of armored concrete selection area, setting has double face binding function
Heat insulating strip 3, it is ensured that heat insulating box 2 and reinforced concrete surface are in sealing contact, and barrier external heat source disturbs the heat in heat insulating box 2
It is dynamic；
C. it manually controls connection scale to move above and below 2 inside of heat insulating box or along screw type sense channel 6, with control
The three-dimensional position locating in heat insulating box 2 of thermal infrared imager 4, detection armored concrete become rusty the overview of swollen degree；
D. thermal infrared imager 4 by reflect armored concrete become rusty swollen degree color thermal map real-time transmission to computer 1, according to
The temperature difference size that color thermal map reflects obtains corrosive crack width, then analyzes armored concrete according to corrosive crack method
It becomes rusty swollen degree；
E. the three-dimensional motion for manually controlling connection scale 5, according to the analysis of step (D) as a result, with thermal infrared imager 4 to steel
The reinforced concrete more serious region of swollen degree of becoming rusty carries out emphasis detection, and analyzes the region again by the method for step (D)
Degree that the rust of armored concrete is swollen.
Improvement as the present invention to upper technical solution, screw type sense channel 6 be equipped with transparent rubber heat insulating strip, with into
One step obstructs external heat source to the thermal agitation in heat insulating box 2.
Further improvement as the present invention to upper technical solution, the heat insulating box 2 are square, the connection scale
5 be equipped with minimum unit be millimeter scale, staff can by connection scale 5 on scale judge thermal infrared imager 4 and
The distance between armored concrete, the length of the connection scale 5 are 1.35-1.45 times of 2 side length of heat insulating box, are convenient for work
Personnel's mobile connection scale and control thermal infrared imager 4 are at a distance from armored concrete.
Further improvement as the present invention to upper technical solution, the heat insulating box, with double face binding function every
The thermal coefficient of hot item 3 and transparent rubber heat insulating strip is 0.1-0.15W/ (mk), efficiently reduces thermal infrared imager 4 and exists
Detection armored concrete become rusty swollen degree when solar radiation, air flowing, personnel walk about etc. caused by temperature change to infra-red radiation
The influence of information further improves the accuracy of detection.
It is high that the present invention realizes become rusty swollen non-destructive testing, testing result accuracy of armored concrete, has extensive practical
Property.
Claims (4)
- A kind of method of swollen degree 1. non-destructive testing armored concrete becomes rusty, related hardware include computer (1) and hot box Body (2), the thermal infrared imager (4) for connecting scale (5) and being mounted on connection scale (5) end, the thermal infrared imager (4) are logical Data line is crossed to be connected with computer (1)；It is characterized in that, heat insulating box (2) upper layer is equipped with screw type sense channel (6), The connection scale (5) end is located at heat insulating box (2) inside, and heat insulating box is stretched out by screw type sense channel (6) in top (2), it and can be moved in screw type sense channel (6)；Specific detecting step are as follows:A. the armored concrete region for the swollen degree detecting that become rusty is selected, and place is dusted to reinforced concrete surface Reason；B. according to the size of heat insulating box (2) armored concrete selection area surface setting have double face binding function every Hot item (3), it is ensured that heat insulating box (2) and reinforced concrete surface are in sealing contact, obstruct external heat source in heat insulating box (2) Thermal agitation；C. it is up and down or mobile along screw type sense channel (6) inside heat insulating box (2) to manually control connection scale (5), with Control thermal infrared imager (4) three-dimensional position locating in heat insulating box (2), detection armored concrete becomes rusty the overview of swollen degree；D. thermal infrared imager (4) by reflect armored concrete become rusty swollen degree color thermal map real-time transmission to computer (1), according to The temperature difference size that color thermal map reflects obtains corrosive crack width, then analyzes armored concrete according to corrosive crack method It becomes rusty swollen degree；E. the three-dimensional motion for manually controlling connection scale (5), according to the analysis of step (D) as a result, with thermal infrared imager (4) to steel The reinforced concrete more serious region of swollen degree of becoming rusty carries out emphasis detection, and obtains the region reinforcing bar by the method for step (D) Degree that the rust of concrete is swollen.
- The method of swollen degree 2. a kind of non-destructive testing armored concrete according to claim 1 becomes rusty, which is characterized in that described Screw type sense channel (6) is equipped with transparent rubber heat insulating strip.
- The method of swollen degree 3. a kind of non-destructive testing armored concrete according to claim 1 or 2 becomes rusty, which is characterized in that The heat insulating box (2) is square, and connection scale (4) is equipped with the scale that minimum unit is millimeter, and connects scale (5) length is 1.35-1.45 times of heat insulating box (2) side length.
- The device of swollen degree 4. a kind of non-destructive testing armored concrete according to claim 2 becomes rusty, which is characterized in that described Heat insulating box (2), heat insulating strip (3) and transparent rubber heat insulating strip with double face binding function thermal coefficient be 0.1- 0.15W/(m·k)。
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810501040.2A CN108982571A (en) | 2018-05-23 | 2018-05-23 | A kind of non-destructive testing armored concrete becomes rusty the method for swollen degree |
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| CN201810501040.2A CN108982571A (en) | 2018-05-23 | 2018-05-23 | A kind of non-destructive testing armored concrete becomes rusty the method for swollen degree |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669028A (en) * | 2019-03-04 | 2019-04-23 | 青岛理工大学 | Method for measuring cracking and rusty swelling force of concrete caused by reinforcement rusty swelling |
| CN111458375A (en) * | 2020-03-20 | 2020-07-28 | 同济大学 | Method and device for detecting rust expansion of shallow reinforcing steel bar of tunnel lining |
| CN111896629A (en) * | 2020-07-10 | 2020-11-06 | 同济大学 | Rapid detection method for tunnel structure surface layer diseases |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109669028A (en) * | 2019-03-04 | 2019-04-23 | 青岛理工大学 | Method for measuring cracking and rusty swelling force of concrete caused by reinforcement rusty swelling |
| CN109669028B (en) * | 2019-03-04 | 2021-06-15 | 青岛理工大学 | Method for measuring cracking and rusty swelling force of concrete caused by reinforcement rusty swelling |
| CN111458375A (en) * | 2020-03-20 | 2020-07-28 | 同济大学 | Method and device for detecting rust expansion of shallow reinforcing steel bar of tunnel lining |
| CN111896629A (en) * | 2020-07-10 | 2020-11-06 | 同济大学 | Rapid detection method for tunnel structure surface layer diseases |
| CN111896629B (en) * | 2020-07-10 | 2023-05-12 | 同济大学 | Rapid detection method for tunnel structure surface layer defect |
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Application publication date: 20181211 |
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