CN211576893U - Concrete impermeability testing device - Google Patents
Concrete impermeability testing device Download PDFInfo
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- CN211576893U CN211576893U CN202020245754.4U CN202020245754U CN211576893U CN 211576893 U CN211576893 U CN 211576893U CN 202020245754 U CN202020245754 U CN 202020245754U CN 211576893 U CN211576893 U CN 211576893U
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Abstract
The utility model discloses a concrete impermeability testing arrangement, including pressure cylinder body, the given deformation unit, air feed water supply system and pressure measurement subassembly, concrete sample sets up and separates at least one independent cavity with pressure cylinder body in pressure cylinder body, the given deformation unit is connected and is used for exerting the effort to concrete sample on pressure cylinder body and makes it take place deformation, air feed water supply system connects and is this cavity air feed or supplies water in one of them cavity, pressure measurement subassembly is arranged in detecting the sealing performance of the pressure variation in this cavity in order to detect concrete sample. The utility model discloses a testing arrangement can effectively simulate concrete and produce deformation to its leakproofness of dynamic measurement has expanded testing arrangement's test function, and this simple structure, convenient operation.
Description
Technical Field
The utility model relates to a concrete detection technology field, in particular to concrete impermeability testing arrangement.
Background
The sprayed concrete is widely applied to tunnel construction and coal mine tunnel construction at home and abroad, and the sprayed concrete layer of the tunnel and the coal mine tunnel and other supporting structures must effectively block water, toxic and harmful gases and the like from flowing into the tunnel or the tunnel, so the sprayed concrete layer has certain sealing property. Along with the time lapse, tunnel or tunnel can produce deformation along with the time lapse, and the sprayed concrete layer can produce deformation equally, because the concrete is hard material, even little deformation also can lead to the destruction of concrete structure, and then influences its leakproofness.
At present, the common device for measuring the concrete tightness can only test the concrete tightness under a static state, and cannot test the tightness of concrete under given deformation.
Therefore, in order to solve the above problems, a concrete impermeability test device is needed, which can measure impermeability of concrete under different deformation.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a concrete impermeability testing arrangement, the device can apply the deformation volume for the concrete sample for the concrete detects its impermeability under different deformation operating modes.
The utility model discloses a concrete impermeability testing arrangement, including pressure cylinder body, the given deformation unit, air feed/water supply system and pressure measurement subassembly, concrete sample sets up and separates at least one independent cavity with pressure cylinder body in pressure cylinder body, the given deformation unit connect be used for exerting the effort to concrete sample on pressure cylinder body and make it take place deformation, air feed/water supply system connect in one of them cavity be this cavity air feed or supply water, pressure measurement subassembly is arranged in detecting the sealing performance of the pressure variation in this cavity in order to detect concrete sample.
Further, the pressure cylinder body comprises an upper cylinder body with an opening at the bottom and a lower cylinder body with an opening at the top, the upper cylinder body and the lower cylinder body are buckled and connected up and down and clamp the concrete test piece in the middle, so that the upper cylinder body cavity and the lower cylinder body cavity are mutually independent.
Further, the given deformation unit comprises a deformation bolt in threaded connection with the bottom of the lower cylinder body, the top of the deformation bolt abuts against the lower portion of the concrete test piece to provide acting force required by deformation for the concrete test piece, and the air supply/water supply system is connected to the inner cavity of the upper cylinder body.
Further, sealing gaskets are arranged between the concrete test piece and the bottom of the upper cylinder body and between the concrete test piece and the bottom of the lower cylinder body in a cushioning mode.
Further, a cushion block is arranged between the top of the deformation bolt and the bottom of the concrete test piece.
Furthermore, a detection device for detecting the vertical displacement of the deformation bolt is connected to the deformation bolt or the lower cylinder body.
Furthermore, the bottom of the upper cylinder body and the top of the lower cylinder body are provided with connecting flanges which are formed by bending outwards, and the upper cylinder body and the lower cylinder body are connected through a plurality of connecting pieces connected between the two connecting flanges.
Further, the upper cylinder body and the lower cylinder body are cylindrical cavities with vertical axes, the concrete test piece is of a round cake structure and is clamped between the two connecting flanges, and the deformation bolt, the concrete test piece, the upper cylinder body inner cavity and the lower cylinder body inner cavity are coaxially arranged.
Furthermore, the connecting piece is a plurality of connecting bolts which are symmetrically distributed along the axial center of the pressure cylinder.
The utility model has the advantages that:
the testing device of the utility model can effectively simulate the deformation of concrete and dynamically measure the sealing performance, thereby expanding the testing function of the testing device, and the side-looking device has simple structure and convenient operation;
the utility model discloses a structure of upper and lower cylinder body does benefit to the installation and the sealing of concrete sample, and the change of the concrete sample of being convenient for is dismantled, can improve detection efficiency.
Drawings
The invention is further described with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
Detailed Description
FIG. 1 is a schematic structural view of the present invention;
as shown in the figure: the concrete impermeability test device of this embodiment, including the pressure cylinder body, give the deformation unit, air feed/water supply system 2 and pressure measurement subassembly, concrete sample 1 sets up and separates at least one independent cavity with the pressure cylinder body in the pressure cylinder body, give the deformation unit and connect and be used for exerting the effort to the concrete sample on the pressure cylinder body and make it take place deformation, air feed/water supply system 2 connects and supplies air or water for this cavity in one of them cavity, the pressure measurement subassembly is arranged in detecting the pressure variation in this cavity in order to detect the sealing performance of concrete sample. The gas supply/water supply system can be a gas supply system or a water supply system, wherein the water supply system can be a pressure pump, the outlet end of the pressure pump is connected to a liquid inlet joint of a pressure cylinder body through a water pipe, high-pressure liquid is injected into one cavity in the pressure cylinder body, the gas supply system can be an air compressor, the gas outlet end of the air compressor is connected with a gas inlet joint of the pressure cylinder body through an air pipe, high-pressure gas is supplied into one cavity in the pressure cylinder, a gas supply or liquid supply joint is reserved on the pressure cylinder body to be connected with the gas supply/water supply system, and a valve 12 is arranged on a pipeline between the gas supply/water supply system and the pressure cylinder body to control high-; the concrete test piece can be of a round cake structure or a square cake structure, and the specific structural form is determined according to the structure of the pressure cylinder body. The pressure cylinder body can be of a bottom or top opening structure, at the moment, the concrete sample can be arranged at the opening end of the cylinder body, so that a high-pressure cavity is formed in the cylinder body, in the embodiment, the concrete sample divides the interior of the pressure cylinder body into an upper cavity and a lower cavity which are respectively a high-pressure cavity and a normal-pressure cavity, wherein the high-pressure cavity is used for injecting a high-pressure medium, the normal-pressure cavity is favorable for installing a given deformation unit so as to improve the compact structure, the high-pressure cavity is used for being connected with an air supply/water supply system, the given deformation unit can be arranged in the normal-pressure cavity, the given deformation unit can be a jacking structure of a hydraulic cylinder or a screw nut pair, acting force needing deformation is provided for the concrete sample by the concrete sample through the structure, the pressure, adopt PTS503 digital display pressure sensor 10 in this embodiment, specifically no longer give unnecessary details, at first place the concrete test piece in place in the testing process, then, gas supply/water supply system passes through pipeline release gas or liquid experiment medium, observe pressure measurement subassembly numerical value this moment, when pressure in the high-pressure cavity reaches the design value, close the valve, pressure measurement subassembly record the pressure value change in the high-pressure cavity, make the concrete test piece slowly produce deformation through giving deformation unit in the testing process, and observe the numerical value change of pressure measurement subassembly. The numerical value of the pressure detection assembly is recorded to obtain a pressure-time curve in the high-pressure cavity after the concrete test piece is given with the deformation amount, and the numerical value is conveniently and reliably recorded; the concrete test piece accessible given deformation unit takes place deformation, the leakproofness after the test concrete produced deformation of being convenient for, and device test function obtains the extension.
In this embodiment, the pressure cylinder includes an upper cylinder 3 with an opening at the bottom and a lower cylinder 4 with an opening at the top, and the upper cylinder and the lower cylinder are vertically buckled and connected and clamp the concrete sample in the middle to make the upper cylinder cavity and the lower cylinder cavity independent from each other. When the upper cylinder body and the lower cylinder body are made of flexible materials such as rubber, the upper cylinder body, the lower cylinder body and the concrete test piece are tightly pressed and attached to form a sealing structure so as to ensure mutual independence and sealing performance of the upper cylinder body and the lower cylinder body; the structure adopts the form of the upper cylinder body and the lower cylinder body to be beneficial to the installation and the sealing of the concrete test piece, and the replacement and the disassembly of the concrete test piece are convenient.
In this embodiment, the given deformation unit includes deformation bolt 5 of threaded connection in lower cylinder bottom, deformation bolt top is supported and is provided the required effort of deformation for the concrete sample below the concrete sample, air feed/water supply system 2 connects in last cylinder inner chamber. The upper end of the deformation bolt is preferably abutted to the center below the concrete, so that the deformation bolt is stressed uniformly, the rotary motion is converted into vertical linear motion through the deformation bolt, the feeding amount of the deformation bolt is conveniently and accurately adjusted, and the deformation amount of the concrete test piece is favorably and accurately controlled.
In this embodiment, the sealing gaskets 6 are arranged between the concrete sample and the bottom of the upper cylinder body and between the concrete sample and the bottom of the lower cylinder body. The sealed pad can be rubber pad or PVC pad, and middle and upper cylinder body and lower cylinder body select for use the metal material in order to improve its structural strength and rigidity in this embodiment, do benefit to through sealed pad and seal between upper and lower cylinder body and the concrete test piece, also do benefit to simultaneously and prevent upper and lower cylinder body and concrete test piece rigid contact damage concrete test piece, effectively protect the concrete test piece, rejected because the upper and lower cylinder body fracturing concrete test piece leads to the seepage factor, improve and detect the precision.
In this embodiment, be provided with cushion 7 between deformation bolt top and the concrete sample bottom. The size of cushion is greater than the big footpath of the screw thread of deformation bolt, and preferred cushion is the cylinder structure of arranging with the deformation bolt is coaxial in this embodiment, and the diameter of cushion is greater than the big footpath of the screw thread of deformation bolt, makes effort evenly distributed on the concrete sample through the cushion, improves the atress degree of consistency of concrete sample.
In this embodiment, be connected with the detection device who is used for detecting deformation bolt displacement from top to bottom on deformation bolt or the lower cylinder body. This detection device can be for connecting in the scale of cylinder body down, read the upper and lower displacement of deformation bolt through the scale, perhaps detection device can be for connecting percentage table or the amesdial on deformation bolt or cylinder body down, select in this embodiment to use hayaguan interlinkage percentage table 11, the range is 0-10mm, the percentage table has the data display function, the rotatory deformation bolt, the vertical displacement value of deformation bolt is read automatically to the leucometer, can real time monitoring deformation bolt's vertical displacement through detection device, thereby read the deformation volume of concrete sample, make the deformation volume of concrete sample and the internal corresponding pressure value of last cylinder body match each other, be convenient for the influence of analysis concrete deformation volume to its impermeability.
In this embodiment, the bottom of the upper cylinder body and the top of the lower cylinder body are provided with connecting flanges 8 which are formed by bending outwards, and the upper cylinder body and the lower cylinder body are connected through a plurality of connecting pieces 9 connected between the two connecting flanges. As shown in the combined drawing 1, the connecting flanging plays a role in connecting the upper cylinder body and the lower cylinder body, and also serves as a reinforcing piece to improve the structural strength and rigidity of the upper cylinder body and the lower cylinder body, and meanwhile, the flanging arrangement is favorable for forming a clamping structure on a concrete test piece, so that a clamping surface is large, the clamping force clamped on the concrete test piece is improved, and the sealing between the upper cylinder body and the lower cylinder body and the concrete test piece is favorable. The connecting piece can also be for the bolt to connect between the turn-ups for clamping structure centre gripping two, and perhaps the connecting piece can be for connecting in two a plurality of springs of connecting between the turn-ups, makes the connection turn-ups that upper and lower cylinder body corresponds to press in the upper and lower end of concrete sample through elastic force, specifically no longer gives details.
In this embodiment, the upper cylinder body and the lower cylinder body are cylindrical cavities with vertical axes, the concrete test piece is of a round cake structure, the concrete test piece is clamped between the two connecting flanges, and the deformation bolt, the concrete test piece, the upper cylinder body inner cavity and the lower cylinder body inner cavity are coaxially arranged. This structure makes the clamping-force evenly distributed that the concrete sample received to the stationary lift who receives the deformation bolt is comparatively even, can improve the detection precision of concrete sample, connects turn-ups and cushion and upper and lower cylinder body inner chamber also coaxial setting in this embodiment, further improves the atress and improves and detect the precision.
In this embodiment, the connecting member is a plurality of connecting bolts 10 symmetrically distributed along the axial center of the pressure cylinder. Two connection turn-ups form similar flange structure, have seted up eight connecting holes on two connection turn-ups, pass through eight groups of connecting bolt and realize the connection of upper and lower cylinder body corresponding to the connecting hole, connecting bolt central symmetry distributes for the effort circumference evenly distributed of the connection turn-ups centre gripping that upper and lower cylinder body corresponds on the concrete sample improves the stress concentration phenomenon of concrete sample, and does benefit to the sealed between upper and lower cylinder body and the concrete sample.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (9)
1. The utility model provides a concrete impermeability test device which characterized in that: the concrete test piece is arranged in the pressure cylinder body and is separated into at least one independent cavity, the given deformation unit is connected to the pressure cylinder body and used for exerting acting force on the concrete test piece to enable the concrete test piece to deform, the air supply/water supply system is connected to one cavity to supply air or water for the cavity, and the pressure detection assembly is used for detecting the pressure change in the cavity to detect the sealing performance of the concrete test piece.
2. The concrete impermeability test device of claim 1, wherein: the pressure cylinder body comprises an upper cylinder body with an opening at the bottom and a lower cylinder body with an opening at the top, the upper cylinder body and the lower cylinder body are buckled and connected up and down and clamp the concrete test piece in the middle, so that the cavity of the upper cylinder body and the cavity of the lower cylinder body are mutually independent.
3. The concrete impermeability test device of claim 2, wherein: the given deformation unit comprises a deformation bolt in threaded connection with the bottom of the lower cylinder body, the top of the deformation bolt abuts against the lower portion of the concrete test piece to provide acting force required by deformation for the concrete test piece, and the air supply/water supply system is connected to the inner cavity of the upper cylinder body.
4. The concrete impermeability test device of claim 2, wherein: and sealing gaskets are arranged between the concrete test piece and the bottom of the upper cylinder body and between the concrete test piece and the bottom of the lower cylinder body in a cushioning manner.
5. The concrete impermeability test device of claim 3, wherein: and a cushion block is arranged between the top of the deformation bolt and the bottom of the concrete test piece.
6. The concrete impermeability test device of claim 3, wherein: and the deformation bolt or the lower cylinder body is connected with a detection device for detecting the vertical displacement of the deformation bolt.
7. The concrete impermeability test device of claim 5, wherein: the bottom of the upper cylinder body and the top of the lower cylinder body are provided with connecting flanges which are formed by bending outwards, and the upper cylinder body and the lower cylinder body are connected through a plurality of connecting pieces connected between the two connecting flanges.
8. The concrete impermeability test device of claim 7, wherein: the upper cylinder body and the lower cylinder body are cylindrical cavities with vertical axes, the concrete test piece is of a round cake structure and is clamped between the two connecting flanges, and the deformation bolt, the concrete test piece, the upper cylinder body inner cavity and the lower cylinder body inner cavity are coaxially arranged.
9. The concrete impermeability test device of claim 8, wherein: the connecting piece is a plurality of connecting bolts which are symmetrically distributed along the axial line center of the pressure cylinder.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020245754.4U CN211576893U (en) | 2020-03-03 | 2020-03-03 | Concrete impermeability testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020245754.4U CN211576893U (en) | 2020-03-03 | 2020-03-03 | Concrete impermeability testing device |
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| CN211576893U true CN211576893U (en) | 2020-09-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508267A (en) * | 2022-10-21 | 2022-12-23 | 江苏华科建设工程质量检测有限公司 | Concrete anti-permeation detection method for monitoring safety of concrete building |
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2020
- 2020-03-03 CN CN202020245754.4U patent/CN211576893U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115508267A (en) * | 2022-10-21 | 2022-12-23 | 江苏华科建设工程质量检测有限公司 | Concrete anti-permeation detection method for monitoring safety of concrete building |
| CN115508267B (en) * | 2022-10-21 | 2024-01-05 | 江苏华科建设工程质量检测有限公司 | Concrete permeation resistance detection method for concrete building safety monitoring |
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