CN205655794U - A calibration test piece for electromagnetic induction method cover to reinforcement thickness detection instrument - Google Patents
A calibration test piece for electromagnetic induction method cover to reinforcement thickness detection instrument Download PDFInfo
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- CN205655794U CN205655794U CN201620483747.1U CN201620483747U CN205655794U CN 205655794 U CN205655794 U CN 205655794U CN 201620483747 U CN201620483747 U CN 201620483747U CN 205655794 U CN205655794 U CN 205655794U
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- electromagnetic induction
- induction method
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Abstract
The utility model discloses a calibration test piece for electromagnetic induction method cover to reinforcement thickness detection instrument, including the cuboid test piece preceding, the posterior lateral plate of cuboid test piece on open and have the corresponding reservation hole of a plurality of, in the front, be equipped with a plurality of reinforcing bar between the posterior lateral plate, the both ends of reinforcing bar are stretched into respectively in the reservation hole corresponding on preceding, the posterior lateral plate. The utility model discloses low in cost, simple structure, economical and practical, the function is various, the save is convenient, and is various informative, has diversified calibration form, can set up the multiple hole of multiple size as required, has very important's meaning to the daily calibration of electromagnetic induction method reinforcing bar detector.
Description
Technical field
This utility model relates to construction engineering test technical field, particularly relates to a kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector.
Background technology
Electromagnetic induction method detection thickness of protection tier be China build at present, practical a kind of widest method in the engineering structure scene Non-Destructive Testing such as water conservancy, bridge.Requirement according to People's Republic of China's industry standard JGJ/T152-2008 " reinforcement in concrete detection technique code ": calibration test specimen should be used before the detection of electromagnetic induction method reinforcing bar survey meter to calibrate; when thickness of concrete cover is 10～50mm; the tolerance of thickness of concrete cover detection is ± 1mm, and the tolerance of bar spacing detection is ± 3mm.The calibration of reinforced bar detection instrument is carried out according to the regulation of the Appendix B of this code.Appendix B specifies to make the basic principle of calibration test specimen; concrete physical dimension is not provided; and the method is only capable of calibrating the protective layer thickness of a certain bar diameter and cannot calibrating the deviation of bar spacing; if checking the calibration in the case of different bar diameter protective layer thickness, identical bar diameter difference thickness of protection tier, many placing of reinforcements, the calibration of bar spacing, then the party's rule is inapplicable.
Utility model content
This utility model purpose is contemplated to make up the defect of prior art, it is provided that a kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector.
This utility model is achieved through the following technical solutions:
A kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector; include cuboid test specimen; the forward and backward side plate of described cuboid test specimen has several corresponding reserving holes; being provided with several reinforcing bars between forward and backward side plate, the two ends of reinforcing bar are respectively protruding in reserving hole corresponding on forward and backward side plate.
Described cuboid test specimen can be concrete sample, lucite test specimen, polyurethanes test specimen, plastic samples or epoxy resin test specimen.
Described reinforcing bar is round steel or hot rolled ribbed bars.
Described reserving hole a diameter of 10～the circular hole of 40mm or square hole.
The size of described cuboid test specimen is 545mm × 300 × 150mm.
Described reserving hole is two row or multi-row hole, and reserving hole is placed in sustained height or level height.
The utility model has the advantages that: this utility model is mainly used in the calibration operation of electromagnetic induction method reinforced bar detection instrument; to under the states such as the different identical protective layer thickness of bar diameter, identical bar diameter difference protective layer thickness, the identical protective layer thickness of identical bar diameter and the different bar spacings of simulation, reinforced bar detection instrument can be carried out daily calibration operation；Cheap, simple structure, economical and practical, diverse in function, preserve convenient, various informative, there is diversified calibration form, the multiple hole of sizes can be arranged as required to, the daily calibration tool for electromagnetic induction method reinforced bar detection instrument is of great significance.
Accompanying drawing explanation
Fig. 1 is this utility model structure chart when being abound with reinforcing bar.
Fig. 2 is structure chart during this utility model non-cloth reinforcing bar.
Fig. 3 is front view of the present utility model.
Detailed description of the invention
As shown in Figure 1, 2, 3; a kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector; include cuboid test specimen 2; the forward and backward side plate of described cuboid test specimen 2 has several corresponding reserving holes 3; being provided with several reinforcing bars 1 between forward and backward side plate, the two ends of reinforcing bar 1 are respectively protruding in reserving hole 3 corresponding on forward and backward side plate.
Described cuboid test specimen 2 can be concrete sample, lucite test specimen, polyurethanes test specimen, plastic samples or epoxy resin test specimen.
Described reinforcing bar 1 is round steel or hot rolled ribbed bars.
Described reserving hole 3 a diameter of 10～the circular hole of 40mm or square hole.
The size of described cuboid test specimen 2 is 545mm × 300 × 150mm.
Described reserving hole 3 is two row or multi-row hole, and reserving hole 3 is placed in sustained height or level height.
Reserving hole 3 diameter is greater than the bar diameter of analog calibration, and hole diameter is preferably circular hole or the square hole of 8～40mm, it is proposed that conventional orifices hole dia is set to 20～30mm, to facilitate the reinforcing bar 1 exchanging different-diameter at any time to calibrate.Operation principle is that reinforcing bar 1 is put into reserving hole 3; by electromagnetic induction method reinforced bar detection instrument (lossless detection method) with the protective layer thickness using the metering outfit (directly measuring) such as slide gauge to measure, bar spacing whether in the range of specification tolerance, calibrate whether it may be used for engineering detecting.
When carrying out calibration operation, test specimen should be placed on smooth, bright and clean, on stable ground or other work tops, as required different types of reinforcing bar 1 diameter is placed in reserving hole 3,1 or many reinforcing bars 1 can be placed.Then probe or the roller of reinforced bar detection instrument being placed on calibration test specimen 2, slowly move, in time moving to reinforcing bar 1, now signal intensity is the strongest, and the protective layer thickness that reinforced bar detection instrument shows is minimum, reads protective layer thickness detected value.Answer duplicate detection once at same position, read the thickness of protection tier detected value of the 2nd detection.When 2 thickness of protection tier detected values that same place reads are not more than 1mm, for valid data.
Then use the distance of vernier depth gauge measurement calibration test specimen Edge Distance reinforcing bar upper surface, be reinforcing bar actual measurement protective layer thickness.When using the thickness of protection tier of protective layer thickness and slide gauge actual measurement of reinforced bar detection instrument detection to be more or less the same in ± 1mm, it is believed that reinforced bar detection instrument is in the effectively detection range of instrument, it is possible to for field engineering quality testing and evaluation；Otherwise, reinforced bar detection instrument cannot be used for Site Detection, answers on-call maintenance or searches reason.
Bar spacing detection can regulation according to the method described above be carried out, and adjacent for the steel bar continuous in detection range reinforcing bar doctrine is marked, and measures the spacing of reinforcing bar one by one.When using the bar spacing of the loseless method such as reinforced bar detection instrument detection and the bar spacing using slide gauge detection to be more or less the same in ± 3mm, can reflect it is believed that reinforced bar detection instrument is in the effectively detection range of instrument, it is possible to for field engineering quality testing and evaluation；Otherwise, reinforced bar detection instrument cannot be used for Site Detection, answers on-call maintenance or searches reason.
Claims (6)
1. the calibration test specimen for electromagnetic induction method thickness of protection tier detector; it is characterized in that: include cuboid test specimen; the forward and backward side plate of described cuboid test specimen has several corresponding reserving holes; being provided with several reinforcing bars between forward and backward side plate, the two ends of reinforcing bar are respectively protruding in reserving hole corresponding on forward and backward side plate.
A kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector the most according to claim 1, it is characterised in that: described cuboid test specimen can be concrete sample, lucite test specimen, polyurethanes test specimen, plastic samples or epoxy resin test specimen.
A kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector the most according to claim 1, it is characterised in that: described reinforcing bar is round steel or hot rolled ribbed bars.
A kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector the most according to claim 1, it is characterised in that: described reserving hole a diameter of 10～the circular hole of 40mm or square hole.
5. according to a kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector described in any one of claim 1-4, it is characterised in that: the size of described cuboid test specimen is 545mm × 300 × 150mm.
A kind of calibration test specimen for electromagnetic induction method thickness of protection tier detector the most according to claim 5, it is characterised in that: described reserving hole is two row or multi-row hole, and reserving hole is placed in sustained height or level height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620483747.1U CN205655794U (en) | 2016-05-20 | 2016-05-20 | A calibration test piece for electromagnetic induction method cover to reinforcement thickness detection instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620483747.1U CN205655794U (en) | 2016-05-20 | 2016-05-20 | A calibration test piece for electromagnetic induction method cover to reinforcement thickness detection instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205655794U true CN205655794U (en) | 2016-10-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620483747.1U Expired - Fee Related CN205655794U (en) | 2016-05-20 | 2016-05-20 | A calibration test piece for electromagnetic induction method cover to reinforcement thickness detection instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN205655794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708597A (en) * | 2019-02-13 | 2019-05-03 | 郭瀚 | Reinforcing bar stringer applied to the experiment of reinforcing bar survey meter data correction |
| CN110160437A (en) * | 2019-06-28 | 2019-08-23 | 中国十七冶集团有限公司 | A kind of protective layer thickness test method of the separate type reinforcing bar based on ECC |
-
2016
- 2016-05-20 CN CN201620483747.1U patent/CN205655794U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109708597A (en) * | 2019-02-13 | 2019-05-03 | 郭瀚 | Reinforcing bar stringer applied to the experiment of reinforcing bar survey meter data correction |
| CN110160437A (en) * | 2019-06-28 | 2019-08-23 | 中国十七冶集团有限公司 | A kind of protective layer thickness test method of the separate type reinforcing bar based on ECC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161019 Termination date: 20180520 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |