CN203825005U - Combined type concrete early cracking testing device - Google Patents
Combined type concrete early cracking testing device Download PDFInfo
- Publication number
- CN203825005U CN203825005U CN201420065006.2U CN201420065006U CN203825005U CN 203825005 U CN203825005 U CN 203825005U CN 201420065006 U CN201420065006 U CN 201420065006U CN 203825005 U CN203825005 U CN 203825005U
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- shaped steel
- concrete
- base plate
- testing device
- early stage
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Abstract
The utility model discloses a combined type concrete early cracking testing device. According to the testing device, a bottom plate (2) between stress induction generators (1) is detachable. Handles (4) for moving the testing device are arranged at the two sides of long-edge frame-shaped steel (3); the four handles are supporting points of the testing device so that the whole body of the overturned testing device is separated from the ground. In a mould detaching process, the testing device is overturned; six movable bottom plate strips (2) are firstly detached to expose the bottom of a concrete test piece. The testing device is separated from the ground under the supporting of the handles (4); a hammer is used for striking the bottom of the concrete test piece so that the concrete test piece can be easily knocked off to be de-molded and the working efficiency is improved; the testing device meets the code requirements of a concrete early cracking test.
Description
Technical field
The utility model relates to concrete performance test technical field, particularly the early stage crazing-resistance test device of concrete.
Background technology
Concrete is one of construction material with a long history, of many uses, consumption is maximum, and cracking resistance is to weigh the important indicator of concrete performance.For more different purposes or different mixture ratio crack-resistant performance of concrete, the early stage crazing-resistance test of concrete often need to be carried out in concrete experiments chamber, method and the requirement of the early stage crazing-resistance test of concrete that < < Standard for test methods of longterm performance and durability of ordinary concrete standard > > GB/T50082 is clear and definite.
The planar sheet that the early stage crazing-resistance test of regulation and stipulation concrete is 800mm * 600mm * 100mm with test specimen, surface area is 0.48m
2, on test unit base plate, the stress induced generator of the parallel tiling 7 high 78mm in road, wide 57mm, spacing 50mm can make test specimen rapid crack propagation in the situation that other test condition is identical.
Because the early stage crazing-resistance test of concrete is larger by sample dimensions, the stress induced generator in test specimen bottom and 7 roads is combined closely, cause test specimen bottom large with test unit contact area, test specimen demoulding difficulty, demould time is long, particularly be clipped in two concrete between stress induced generator, extremely difficult removing.
Utility model content
The utility model provides a kind of combined concrete early stage crazing-resistance test device, test specimen demoulding difficult problem before can solving, and demould time shortens, and is clipped in also convenient removing of two concrete between stress induced generator.This experimental provision meets < < Standard for test methods of longterm performance and durability of ordinary concrete standard > > GB/T50082 requirement.
The technical scheme that the utility model adopts is:
The early stage crazing-resistance test device of combined concrete, is characterized in that: the base plate between each stress induced generator of test unit is dismountable.Long margin frame shaped steel both sides are provided with the handle of moving test unit, and this 4 handles is also the fulcrum of test unit, can make the test unit integral body after upset separated with ground level.Roll-over test device when form removal, first pulls down these six blocks of dump bottom laths, exposes concrete sample bottom.Due to test unit under handle supports with surface separation, at this moment use hammering concrete sample bottom, be easy to concrete sample to strike bottom knockout.
All base plates between each stress induced generator of test unit can part base plate be also dismountable.
With bolt, fix two long margin frame shaped steel, frame shaped steel is fixed removable bottom.
For reducing the workload of dismounting, assembling test unit, base plate in addition of 7 stress induced generators and dump bottom lath and long margin frame shaped steel all adopt and are welded and fixed connected mode.
For improving the intensity of detachable base plate bar, shaped steel can be welded in its back.The application point of crowbar application of force during all right conduct dismounting of this shaped steel base plate bar.
This device has configured dismantling concrete test specimen and has held specific purpose tool, can prize from base plate activity bar, knock under concrete sample bottom and cleaning residual concrete duty and use.
Compared with prior art, the beneficial effects of the utility model are:
1. form removal is to carry out the operation that the early stage crazing-resistance test of concrete must operate, and with the early stage crazing-resistance test device of combined concrete, can make very difficult form removal operation become light, easy.
2. use the early stage crazing-resistance test device of combined concrete, during test, can save a large amount of striking times, obviously increase work efficiency.
Accompanying drawing explanation
Fig. 1 is the early stage crazing-resistance test device of combined concrete front schematic view;
Fig. 2 is the early stage crazing-resistance test device of combined concrete schematic rear view.
Embodiment
The early stage crazing-resistance test device of combined concrete, is characterized in that: the base plate (2) between each stress induced generator (1) of test unit is dismountable.Long margin frame shaped steel (3) both sides are provided with the handle (4) of moving test unit, and this 4 handles is also the fulcrum of test unit, can make the test unit integral body after upset separated with ground level.Roll-over test device when form removal, first pulls down these six blocks of dump bottom laths (2), exposes concrete sample bottom.Due to test unit under handle (4) supports with surface separation, at this moment use hammering concrete sample bottom, be easy to concrete sample to strike bottom knockout.
All base plates (2) between each stress induced generator (1) of test unit can part base plate (2) be also dismountable.
With bolt, fix two long margin frame shaped steel (6), frame shaped steel (6) is fixed removable bottom (2).
For reducing the workload of dismounting, assembling test unit, 7 stress induced generators (1) all adopt and are welded and fixed connected mode with dump bottom lath (2) base plate and long margin frame shaped steel (3) in addition.
For improving the intensity of detachable base plate bar (2), shaped steel (5) can be welded in its back.The application point of crowbar application of force during all right conduct dismounting base plate bar of this shaped steel (5) (2).
All grooved bore position Shi Jia bolt bearing on test unit frame shaped steel.For convenience of assembly and disassembly, these bolt bottoms are fixed on rotatable shaft, and butterfly nut is joined on bolt top.
During test unit dismounting, first remove two ends short frame shaped steel (7), then roll-over test device, remove two long margin frame shaped steel (6), remove removable bottom (2), the concrete sample bottom that pounds with a hammer and expose, removes concrete residual on test unit again.Test unit assembly operation order is contrary with test unit dismounting.
This device has configured dismantling concrete test specimen and has held specific purpose tool (8), can prize from base plate activity bar (2), knock under concrete sample bottom and cleaning residual concrete duty and use.
Claims (7)
1. the early stage crazing-resistance test device of combined concrete, it is characterized in that: the base plate (2) between each stress induced generator (1) of test unit is dismountable, 7 stress induced generators (1) are all welded and fixed and are connected with long margin frame shaped steel (3) and 6 dump bottom laths (2) base plate in addition, with bolt, fix two long margin frame shaped steel (6), frame shaped steel (6) is fixed removable bottom (2), for improving the intensity of detachable base plate bar (2), its back welding shaped steel (5), long margin frame shaped steel (3) both sides are provided with the handle (4) of moving test unit, this 4 handles is also the fulcrum of test unit, can make the test unit integral body after upset separated with ground level, roll-over test device when form removal, first these six blocks of dump bottom laths (2) are pulled down, expose concrete sample bottom, due to test unit under handle (4) supports with surface separation, at this moment use hammering concrete sample bottom, be easy to concrete sample to strike bottom knockout.
2. the early stage crazing-resistance test device of a kind of combined concrete according to claim 1, all base plates (2) between each stress induced generator (1) of test unit, can part base plate (2) be also dismountable.
3. the early stage crazing-resistance test device of a kind of combined concrete according to claim 1 and 2, fixes two long margin frame shaped steel (6) with bolt, and frame shaped steel (6) is fixed removable bottom (2).
4. the early stage crazing-resistance test device of a kind of combined concrete according to claim 1, for reducing the workload of dismounting, assembling test unit, 7 stress induced generators (1) all adopt and are welded and fixed connected mode with dump bottom lath (2) base plate and long margin frame shaped steel (3) in addition.
5. the early stage crazing-resistance test device of a kind of combined concrete according to claim 1 and 2, for improving the intensity of detachable base plate bar (2), shaped steel (5) can be welded in its back, the application point of crowbar application of force during all right conduct dismounting base plate bar of this shaped steel (5) (2).
6. the early stage crazing-resistance test device of a kind of combined concrete according to claim 1, all grooved bore position Shi Jia bolt bearing on test unit frame shaped steel, for convenience of assembly and disassembly, these bolt bottoms are fixed on rotatable shaft, and butterfly nut is joined on bolt top.
7. the early stage crazing-resistance test device of a kind of combined concrete according to claim 1, this device has configured dismantling concrete test specimen and has held specific purpose tool (8), can prize from base plate activity bar (2), knock under concrete sample bottom and cleaning residual concrete duty and use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065006.2U CN203825005U (en) | 2014-02-13 | 2014-02-13 | Combined type concrete early cracking testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065006.2U CN203825005U (en) | 2014-02-13 | 2014-02-13 | Combined type concrete early cracking testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203825005U true CN203825005U (en) | 2014-09-10 |
Family
ID=51480488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065006.2U Expired - Fee Related CN203825005U (en) | 2014-02-13 | 2014-02-13 | Combined type concrete early cracking testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203825005U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198285A (en) * | 2014-09-11 | 2014-12-10 | 北京东方雨虹防水技术股份有限公司 | Experimental device and testing method for simulating base layer cracking resistance of coating |
| CN104849436A (en) * | 2014-02-13 | 2015-08-19 | 东北林业大学 | Combined concrete early crack resistance testing device |
| CN109725137A (en) * | 2019-01-21 | 2019-05-07 | 南通市建设工程质量检测站有限公司 | A kind of concrete early-stage crack resistance test macro |
-
2014
- 2014-02-13 CN CN201420065006.2U patent/CN203825005U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104849436A (en) * | 2014-02-13 | 2015-08-19 | 东北林业大学 | Combined concrete early crack resistance testing device |
| CN104198285A (en) * | 2014-09-11 | 2014-12-10 | 北京东方雨虹防水技术股份有限公司 | Experimental device and testing method for simulating base layer cracking resistance of coating |
| CN109725137A (en) * | 2019-01-21 | 2019-05-07 | 南通市建设工程质量检测站有限公司 | A kind of concrete early-stage crack resistance test macro |
| CN109725137B (en) * | 2019-01-21 | 2021-07-30 | 南通市建设工程质量检测站有限公司 | Concrete early crack resistance test system |
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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: 20140910 Termination date: 20150213 |
|
| EXPY | Termination of patent right or utility model |