CN207180555U - Thickness of protection tier measuring instrument calibrates test specimen - Google Patents
Thickness of protection tier measuring instrument calibrates test specimen Download PDFInfo
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- CN207180555U CN207180555U CN201721218194.8U CN201721218194U CN207180555U CN 207180555 U CN207180555 U CN 207180555U CN 201721218194 U CN201721218194 U CN 201721218194U CN 207180555 U CN207180555 U CN 207180555U
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- type concrete
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Abstract
The utility model discloses thickness of protection tier measuring instrument to calibrate test specimen, it is characterised in that：It includes：One fixed standard concrete test specimen, it includes a standard concrete body (1 1), reserving hole (1 2) is provided among standard concrete body (1 1)；Serial extraction-type concrete sample, wherein, every extraction-type concrete sample includes extraction-type concrete body and built-in reinforcing bar, the extraction-type concrete body shape of serial extraction-type concrete sample is consistent with reserving hole (1 2), and size can be inserted just in reserving hole (1 2)；The built-in reinforcing bar of serial extraction-type concrete sample is the reinforcing bar of different-diameter.The utility model can save the concrete amount and preservation transportation volume of calibration test specimen.
Description
Technical field
It the utility model is related to a kind of thickness of protection tier measuring instrument calibration test specimen.
Background technology
In building engineering field, armored concrete is because cost is cheap, sturdy and durable and material source is generally adopted extensively
With.Because concrete crushing strength is high, reinforcing bar tensile property is good, has good cohesion and close between reinforcing bar and concrete
Thermal coefficient of expansion, concrete can play a very good protection to reinforcing bar, and reinforced concrete structure has good workability
Energy and endurance quality, turn into the important component of modern architecture material.However, many reinforced concrete structures are due to various originals
Cause, actual life far fewer than design period, wherein again it is most commonly seen with disease caused by protective layer thickness deviation.If due to
Cover to reinforcement does not reach the requirement of design standard, can cause many harm, including reduces the design bearing capacity of structure,
Cause the premature corrosion of reinforcing bar, cause the reduction etc. of structural strength, rigidity and ductility.
On the other hand, in the prior art, generally use thickness of protection tier analyzer detects existing armored concrete or new
Build bar diameter inside armored concrete, position, reinforcing bar distribution and concrete cover to reinforcement thickness.Before testing, need
There is standard specimen to be calibrated to thickness of protection tier analyzer.The standard specimen of prior art, it is by different-diameter
Reinforcing bar, prepare multiple standard components of identical appearance specification respectively.
Utility model content
The purpose of this utility model is to provide a kind of new thickness of protection tier measuring instrument calibration test specimen.
The used technical scheme that the utility model solves its technical problem is：
Thickness of protection tier measuring instrument calibrates test specimen, it is characterised in that：It includes：
One fixed standard concrete test specimen, it includes a standard concrete body (1-1), standard concrete body (1-
1) reserving hole (1-2) is provided among；
Serial extraction-type concrete sample, wherein, every extraction-type concrete sample include extraction-type concrete body and
Built-in reinforcing bar, the extraction-type concrete body shape of serial extraction-type concrete sample is consistent with reserving hole (1-2), and size
Can just it insert in reserving hole (1-2)；The built-in reinforcing bar of serial extraction-type concrete sample is the reinforcing bar of different-diameter.
In one embodiment, standard concrete body (1-1) is cuboid, and size is length 300mm, width 150mm,
Height 150mm.
In one embodiment, reserving hole (1-2) is square aperture, length 300mm, width 50mm, height 50mm.
In one embodiment, the built-in reinforcing bar length of serial extraction-type concrete sample is all 400mm.
In one embodiment, extraction-type concrete sample both ends exposed steel bar axis to four parallel surfaces of test specimen it is vertical away from
From deviation in 0.5mm.
In one embodiment, extraction-type concrete sample has 3, built-in bar diameter be respectively 10mm, 16mm and
22mm。
This practicality invention beneficial effect be：Standard specimen associative perception is strong, cast molding, is unlikely to deform, and stability is preferable,
It is easy to use in measurement process；Standard concrete test specimen coordinates extraction-type concrete sample ensuring test specimen stability and guarantor
While demonstrate,proving the flatness of working face, multiple extraction-type concrete samples can be also made as needed, and test specimen is easy for installation, calibration
When can be rapidly switched to next test specimen, save cost of manufacture, avoid the repeatability of standard specimen, it is straight to realize different reinforcing bars
Footpath and the change of protective layer thickness, can be with the convenient and reliable calibration for realizing thickness of protection tier measuring instrument.
The utility model can also save the concrete amount and preservation transportation volume of calibration test specimen.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is one of cooperation schematic diagram of fixed standard concrete test specimen and the second extraction-type concrete sample.
Fig. 3 is the two of the cooperation schematic diagram of fixed standard concrete test specimen and the second extraction-type concrete sample.
Embodiment
Referring to Fig. 1, the utility model thickness of protection tier measuring instrument calibration test specimen, it includes：One fixed standard is mixed
Coagulate native test specimen 1, and the first extraction-type concrete sample 2, the second extraction-type concrete sample 3 and the examination of the second extraction-type concrete
Part 4.
Wherein, fixed standard concrete test specimen 1 includes standard concrete body 1-1, among standard concrete body 1-1
Provided with reserving hole 1-2；Fixed more than the preferred disposition C20 of standard concrete test specimen 1 concrete, concrete sand, stone aggregate
In must not contain ferromagnetic material, standard concrete body 1-1 is cuboid, and size is length 300mm, width 150mm, height
150mm；A square aperture 1-2, its length 300mm, width 50mm, height are reserved at the end 50mm of criterion distance test specimen four
50mm。
Extraction-type concrete sample include extraction-type concrete body (2-1/3-1/4-1) and built-in reinforcing bar (2-2/3-2 with
4-2).Wherein, extraction-type concrete body (2-1/3-1/4-1) configuration more than C20 concrete, in concrete sand, stone aggregate not
Must contain ferromagnetic material, size is length 300mm, width 50mm, height 50mm, with non-corroding, without bending, without deformation, nothing
The reinforcing bar of damage is poured in cuboid concrete sample, reinforcing bar length 400mm, test specimen two ends exposed steel bar axis to test specimen four
For the deviation of the vertical range of individual parallel surface in 0.5mm, sectional dimension meets the size requirement of thickness of protection tier.Extraction-type
Concrete sample is 3 pieces, and built-in reinforcing bar (2-2/3-2 and 4-2) is respectively：
The built-in reinforcing bar 4-2 of 3rd extraction-type concrete sample 4 is：φ 10 common HPB300 levels hot rolling plain bar
The built-in reinforcing bar 3-2 of second extraction-type concrete sample 3 is：φ 16 common HRB400 levels straight thread reinforced bar
The built-in reinforcing bar 2-2 of first extraction-type concrete sample 2 is：φ 22 common HRB400 levels straight thread reinforced bar.
Test specimen cast molding, is unlikely to deform, and standard stability is preferable.Test specimen takes fixed test specimen and extraction-type test specimen phase
With reference to composition, associative perception is strong, is easier to realize the flatness of working face, easy for installation, and cover to reinforcement is realized for precise and high efficiency
The calibration of thickness measurement equipment.
During calibration, extraction-type concrete sample (2/3/4) is put into fixed standard concrete test specimen 1, extraction-type examination
When part contacts with surrounded surface, it is ensured that should not damaged fixed standard concrete test specimen, wait extraction-type concrete sample to install,
Ensure that calibrate concrete sample is bonded with extraction-type concrete sample.It is and conveniently replaced according to the difference of calibration bar diameter
Extraction-type calibrates test specimen.
Claims (6)
1. thickness of protection tier measuring instrument calibrates test specimen, it is characterised in that：It includes：
One fixed standard concrete test specimen, it includes a standard concrete body (1-1), in standard concrete body (1-1)
Between be provided with reserving hole (1-2)；
Serial extraction-type concrete sample, wherein, every extraction-type concrete sample includes extraction-type concrete body and built-in
Reinforcing bar, the extraction-type concrete body shape of serial extraction-type concrete sample is consistent with reserving hole (1-2), and size can
Just insert in reserving hole (1-2)；The built-in reinforcing bar of serial extraction-type concrete sample is the reinforcing bar of different-diameter.
2. thickness of protection tier measuring instrument according to claim 1 calibrates test specimen, it is characterised in that：Standard concrete sheet
Body (1-1) is cuboid, and size is length 300mm, width 150mm, height 150mm.
3. thickness of protection tier measuring instrument according to claim 2 calibrates test specimen, it is characterised in that：Reserving hole (1-
2) it is square aperture, length 300mm, width 50mm, height 50mm.
4. the thickness of protection tier measuring instrument calibration test specimen according to claim 1 or 2 or 3, it is characterised in that：Series is taken out
The built-in reinforcing bar length of modus ponens concrete sample is all 400mm.
5. the thickness of protection tier measuring instrument calibration test specimen according to claim 1 or 2 or 3, it is characterised in that：Extraction-type
Concrete sample both ends exposed steel bar axis to the vertical range of four parallel surfaces of test specimen deviation in 0.5mm.
6. the thickness of protection tier measuring instrument calibration test specimen according to claim 1 or 2 or 3, it is characterised in that：Extraction-type
Concrete sample has 3, and built-in bar diameter is respectively 10mm, 16mm and 22mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218194.8U CN207180555U (en) | 2017-09-21 | 2017-09-21 | Thickness of protection tier measuring instrument calibrates test specimen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721218194.8U CN207180555U (en) | 2017-09-21 | 2017-09-21 | Thickness of protection tier measuring instrument calibrates test specimen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207180555U true CN207180555U (en) | 2018-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721218194.8U Active CN207180555U (en) | 2017-09-21 | 2017-09-21 | Thickness of protection tier measuring instrument calibrates test specimen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411316A (en) * | 2019-07-30 | 2019-11-05 | 国网山东省电力公司经济技术研究院 | A kind of project of transmitting and converting electricity thickness of protection tier detection auxiliary device |
-
2017
- 2017-09-21 CN CN201721218194.8U patent/CN207180555U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411316A (en) * | 2019-07-30 | 2019-11-05 | 国网山东省电力公司经济技术研究院 | A kind of project of transmitting and converting electricity thickness of protection tier detection auxiliary device |
| CN110411316B (en) * | 2019-07-30 | 2021-04-06 | 国网山东省电力公司经济技术研究院 | Power transmission and transformation engineering steel bar protective layer thickness detection auxiliary device |
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