CN208155806U - Agent on crack resistance of concrete gas permeability experimental rig - Google Patents
Agent on crack resistance of concrete gas permeability experimental rig Download PDFInfo
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- CN208155806U CN208155806U CN201820779568.1U CN201820779568U CN208155806U CN 208155806 U CN208155806 U CN 208155806U CN 201820779568 U CN201820779568 U CN 201820779568U CN 208155806 U CN208155806 U CN 208155806U
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Abstract
Agent on crack resistance of concrete gas permeability experimental rig.It is related to the gas permeability experimental rig of concrete durability experiment field more particularly to concrete.It is simple to provide a kind of structure, facilitates processing, improves the agent on crack resistance of concrete gas permeability experimental rig of leakproofness and test reliability.Including high pressure gas cylinder, gas permeation cell and gas flowmeter；The gas permeation cell includes top plate and bottom plate, steel bushing, concrete sample and annular inflatable rubber bag tank, the steel bushing, which is connected between top plate and bottom plate, forms test chamber, the concrete sample and inflating rubber capsule are located in test chamber, and it is intracapsular that the concrete sample and PVC planchet plate one, two are located at inflating rubber；The inside of the inflating rubber capsule is equipped with test specimen compensation mechanism, and the test specimen compensation mechanism is for wrapping up concrete sample.The utility model improves the sealing reliability of concrete sample by setting test specimen compensation mechanism.
Description
Technical field
The utility model relates to the tests of the gas permeability of concrete durability experiment field more particularly to concrete to fill
It sets.
Background technique
The durability of concrete material declines and military service performance premature deterioration is current cement concrete scientific circles and engineering
The problem of boundary is paid close attention to the most, gas permeability are the important indicators of a characterization concrete durability.Currently, voltage stabilizing method is tested
Concrete gas permeability generallys use mechanical seal, and discovery the method sealing effect is bad in practice, and be easy to cause mixed
Solidifying soil test specimen destroys, to influence the validity and reliability of concrete gas infiltration coefficient experimental result.
As shown in figure 5, there are evaginations among inflating rubber capsule to make when usually high pressure gas cylinder acts inflating rubber capsule inflation
With being easily damaged so that concrete sample stress is larger；Meanwhile both ends indent, reduce the reliability of sealing.
Utility model content
The utility model facilitates processing, improves leakproofness and test can in view of the above problems, to provide a kind of structure simple
By the agent on crack resistance of concrete gas permeability experimental rig of property.
The technical solution of the utility model is：Including high pressure gas cylinder, gas permeation cell and gas flowmeter；The gas
Permeation unit includes top plate and bottom plate, steel bushing, concrete sample and annular inflatable rubber bag tank, and the steel bushing is connected to top plate and bottom
Test chamber is formed between plate, the concrete sample and inflating rubber capsule are located in test chamber, the concrete sample and
Between top plate be equipped with PVC planchet plate one, between concrete sample and bottom plate be equipped with PVC planchet plate two, the concrete sample and
It is intracapsular that PVC planchet plate one, two is located at inflating rubber；
The steel bushing is equipped with the air inlet of connection inflating rubber air bag, and the air inlet is connected to high pressure gas by tracheae
Bottle,
The bottom plate and PVC planchet plate two are equipped with permeation unit air inlet, and the top plate and PVC planchet plate one are equipped with
Permeation unit gas outlet, the permeation unit air inlet are connected to high pressure gas cylinder by tracheae, and the permeation unit gas outlet passes through
Tracheae is connected to gas flowmeter；
The inside of the inflating rubber capsule is equipped with test specimen compensation mechanism, and the test specimen compensation mechanism is for wrapping up concrete examination
Part.
The test specimen compensation mechanism includes annulus, and gas circuit is equipped in the sleeve, and the intermediate outside of the sleeve is set
There is the annular air-pocket one of connection gas circuit, the bottom plate is equipped with the stomata of connection gas circuit, and the stomata is connected to high pressure by tracheae
Gas cylinder；
The sleeve is for wrapping up concrete sample and PVC planchet plate one, two.
It is respectively equipped with annular air-pocket two on the inside of the both ends of the sleeve, divides on the PVC planchet plate one and PVC planchet plate two
Not She You annular caulking groove, the air bag two is connected to gas circuit, and the air bag two is adaptedly located in caulking groove.
The test specimen compensation mechanism is：The bottom surface of the PVC planchet plate one is equipped with flexible baffle ring one, the PVC planchet plate
Two top surface is in pyramidal and is symmetrical arranged equipped with flexible baffle ring two, the flexibility baffle ring one and flexible baffle ring two, described soft
Property baffle ring one contacts flexible baffle ring two, so that seal chamber is formed between PVC planchet plate one and PVC planchet plate two, the concrete
Test specimen is located in seal chamber.
Sealing ring is equipped between the flexibility baffle ring one and the end face of flexible baffle ring two.
The test specimen compensation mechanism includes cylinder, and the cylinder is used to wrap up concrete sample and PVC planchet plate one, two,
The centre of the cylinder is equipped with annular flexible protrusion, is equipped with spring in the flexible projection.
The utility model at work, is formed closed test chamber by top plate, steel bushing and bottom plate, concrete sample is put
It sets in test chamber, PVC planchet plate one, two is respectively set in the upper and lower of concrete sample, is wrapped up to inflating rubber capsule
It is interior, firstly, inflating rubber capsule is inflated by high pressure gas cylinder, realize sealing；
Then, high pressure gas cylinder is by the permeation unit inlet charge movement on bottom plate and PVC planchet plate two, then passes through top
Permeation unit gas outlet outlet on plate and PVC planchet plate one, is tested by gas flowmeter；
By setting test specimen compensation mechanism, concrete sample is avoided damage to, meanwhile, improve the leakproofness of test.
Concrete sample in the utility model is round pie, and PVC planchet plate one, two is installed above and below, passes through setting
Test specimen compensation mechanism improves the sealing reliability of concrete sample.
Detailed description of the invention
Fig. 1 is the working state figure of the utility model,
Fig. 2 is the structural schematic diagram of test specimen compensation mechanism embodiment one,
Fig. 3 is the structural schematic diagram of test specimen compensation mechanism embodiment two,
Fig. 4 is the structural schematic diagram of test specimen compensation mechanism embodiment three,
Fig. 5 is the structural schematic diagram of the prior art；
1 is high pressure gas cylinder in figure,
2 be gas permeation cell, and 21 be top plate, and 22 be bottom plate, and 23 be steel bushing, and 230 be air inlet, and 24 be concrete examination
Part, 25 be inflating rubber capsule, and 26 be PVC planchet plate one, and 27 be PVC planchet plate two, and 28 be permeation unit air inlet, and 29 be infiltration
Unit gas outlet,
3 be gas flowmeter,
4 be test specimen compensation mechanism,
41 be sleeve, and 411 be gas circuit, and 412 be air bag one, and 413 be stomata, and 414 be air bag two, and 415 be caulking groove,
421 be flexible baffle ring one, and 422 be flexible baffle ring two, and 423 be sealing ring,
43 be cylinder, and 431 be flexible projection, and 432 be spring,
5 be air circuit breaker, and 6 be pressure reducing valve；
Arrow represents the state after the inflation of inflating rubber capsule in Fig. 5.
Specific embodiment
The utility model is as shown in Figs 1-4, including high pressure gas cylinder 1, gas permeation cell 2 and gas flowmeter 3；The gas
Body permeation unit includes top plate 21, bottom plate 22, steel bushing 23, concrete sample 24 and annular inflatable rubber bag tank 25, and the steel bushing connects
It connects and forms test chamber between top plate and bottom plate, the concrete sample and inflating rubber capsule are located in test chamber, described
It is equipped with PVC planchet plate one between concrete sample and top plate, PVC planchet plate two is equipped between concrete sample and bottom plate, it is described
It is intracapsular that concrete sample and PVC planchet plate one, two are located at inflating rubber（So that inflating rubber capsule package concrete sample and it is upper,
Lower PVC planchet plate）；
The steel bushing is equipped with the air inlet 230 of connection inflating rubber air bag, and the air inlet is connected to high pressure by tracheae
Gas cylinder,
The bottom plate and PVC planchet plate two are equipped with permeation unit air inlet 28, set on the top plate and PVC planchet plate one
There is permeation unit gas outlet 29, the permeation unit air inlet is connected to high pressure gas cylinder, the permeation unit gas outlet by tracheae
Gas flowmeter is connected to by tracheae；Air circuit breaker 5 is set convenient for control opening and closing, setting pressure reducing valve 6 is convenient for when work, on tracheae
Control gas pressure.
The inside of the inflating rubber capsule is equipped with test specimen compensation mechanism 4, and the test specimen compensation mechanism is for wrapping up concrete
Test specimen.
The utility model at work, is formed closed test chamber by top plate, steel bushing and bottom plate, concrete sample is put
It sets in test chamber, PVC planchet plate one, two is respectively set in the upper and lower of concrete sample, is wrapped up to inflating rubber capsule
It is interior, firstly, inflating rubber capsule is inflated by high pressure gas cylinder, realize sealing；
Then, high pressure gas cylinder is by the permeation unit inlet charge movement on bottom plate and PVC planchet plate two, then passes through top
Permeation unit gas outlet outlet on plate and PVC planchet plate one, is tested by gas flowmeter；
By setting test specimen compensation mechanism, concrete sample is avoided damage to, meanwhile, improve the leakproofness of test.
Concrete sample in the utility model is round pie, and PVC planchet plate one, two is installed above and below, passes through setting
Test specimen compensation mechanism improves the sealing reliability of concrete sample.
The test specimen compensation mechanism includes annulus 41, is equipped with gas circuit 411 in the sleeve, outside the centre of the sleeve
Side is equipped with the annular air-pocket 1 of connection gas circuit, and the bottom plate is equipped with the stomata 413 of connection gas circuit, and the stomata passes through gas
Pipe is connected to high pressure gas cylinder；
The sleeve is for wrapping up concrete sample and PVC planchet plate one, two.
By the way that sleeve is arranged, high pressure gas cylinder is inflated the air bag one on sleeve, it is made to act on inflating rubber capsule
Centre, in this way, the intermediate indent of inflating rubber capsule, avoids the damage to concrete sample；Both ends outwardly convex makes it through set
Cylinder reliable contacts PVC planchet plate one, two, improves leakproofness.
Annular air-pocket 2 414, the PVC planchet plate one and PVC planchet plate two are respectively equipped on the inside of the both ends of the sleeve
On be respectively equipped with annular caulking groove 415, the air bag two is connected to gas circuit, and the air bag two is adaptedly located in caulking groove.
By the cooperation that air bag two and caulking groove is arranged, on the one hand, so that positioning is reliable；On the other hand, so that sleeve and PVC
Better tightness between planchet plate one, two guarantees the reliability of concrete sample test.
The test specimen compensation mechanism is：The bottom surface of the PVC planchet plate one is equipped with flexible baffle ring 1, the PVC planchet
The top surface of plate two is in pyramidal and is symmetrical arranged equipped with flexible baffle ring 2 422, the flexibility baffle ring one and flexible baffle ring two,
The flexibility baffle ring one contacts flexible baffle ring two, so that seal chamber is formed between PVC planchet plate one and PVC planchet plate two, it is described
Concrete sample is located in seal chamber.
Flexible ring flat-plate one is identical with the flexible structure of baffle ring two, forms seal chamber by both settings contact, on the one hand, mention
High leakproofness；On the other hand, inflating rubber capsule after inflation, for squeezing flexible baffle ring one, two, avoids damage concrete examination
Part, meanwhile, it is further ensured that the leakproofness of seal chamber.Flexible baffle ring one, two can be rubber ring, facilitate processing.
Sealing ring 423 is equipped between the flexibility baffle ring one and the end face of flexible baffle ring two.
By the way that sealing ring is arranged, guarantees leakproofness, improve the reliability of test.
The test specimen compensation mechanism includes cylinder 43, the cylinder for wrap up concrete sample and PVC planchet plate one,
Two, the centre of the cylinder is equipped with annular flexible protrusion 431, is equipped with spring 432 in the flexible projection.
In work, after the inflation of inflating rubber capsule, in-between directly effect and flexible projection, in this way, will wherein by spring
Between form indent, avoid the damage to concrete sample；Both ends outwardly convex makes it through sleeve reliable contacts PVC planchet plate
One, two, improve leakproofness.Flexible projection such as rubber bumps, can be used for placing spring.
The utility model is specifically divided into test air-channel system and sealing air-channel system, and high pressure gas cylinder is connected to by tracheae to permeate
Unit inlet charge is connected to gas flowmeter by concrete sample, then from permeation unit gas outlet outlet by tracheae；It is logical
Cross precise pressure regulating valve（Such as pressure reducing valve 6）The pressure value of air-channel system is accurately controlled, gas is in certain pressure in test air-channel system
Under penetrate through concrete sample.Inflating rubber air bag expands under certain gas pressure, meanwhile, machine is compensated by setting test specimen
Structure is fully wrapped around to avoid concrete sample from damaging in concrete sample, meanwhile, prevent gas in test gas circuit from overflowing from side,
And then reach the gas process of osmosis for realizing excellent sealing effect and stable state, improve the validity and reliability of test result.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779568.1U CN208155806U (en) | 2018-05-23 | 2018-05-23 | Agent on crack resistance of concrete gas permeability experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820779568.1U CN208155806U (en) | 2018-05-23 | 2018-05-23 | Agent on crack resistance of concrete gas permeability experimental rig |
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| Publication Number | Publication Date |
|---|---|
| CN208155806U true CN208155806U (en) | 2018-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820779568.1U Withdrawn - After Issue CN208155806U (en) | 2018-05-23 | 2018-05-23 | Agent on crack resistance of concrete gas permeability experimental rig |
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| Country | Link |
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| CN (1) | CN208155806U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717038A (en) * | 2018-05-23 | 2018-10-30 | 中国建筑材料科学研究总院有限公司 | A kind of agent on crack resistance of concrete gas permeability experimental rig and method |
| CN109406378A (en) * | 2018-12-14 | 2019-03-01 | 中国科学院武汉岩土力学研究所 | A kind of experimental provision and method of concrete accelerated erosion |
-
2018
- 2018-05-23 CN CN201820779568.1U patent/CN208155806U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717038A (en) * | 2018-05-23 | 2018-10-30 | 中国建筑材料科学研究总院有限公司 | A kind of agent on crack resistance of concrete gas permeability experimental rig and method |
| CN108717038B (en) * | 2018-05-23 | 2023-11-24 | 中国建筑材料科学研究总院有限公司 | A kind of concrete gas permeability resistance test device |
| CN109406378A (en) * | 2018-12-14 | 2019-03-01 | 中国科学院武汉岩土力学研究所 | A kind of experimental provision and method of concrete accelerated erosion |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181127 Effective date of abandoning: 20231124 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20181127 Effective date of abandoning: 20231124 |