CN217561278U - Concrete gas permeability testing arrangement - Google Patents
Concrete gas permeability testing arrangement Download PDFInfo
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- CN217561278U CN217561278U CN202220409797.0U CN202220409797U CN217561278U CN 217561278 U CN217561278 U CN 217561278U CN 202220409797 U CN202220409797 U CN 202220409797U CN 217561278 U CN217561278 U CN 217561278U
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- Prior art keywords
- concrete
- sealing cylinder
- die sleeve
- cavity
- sealing
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- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 230000035699 permeability Effects 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 39
- 239000011229 interlayer Substances 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 14
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 14
- 241001330002 Bambuseae Species 0.000 abstract description 14
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 14
- 239000011425 bamboo Substances 0.000 abstract description 14
- 230000008859 change Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 15
- 239000011148 porous material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model relates to a concrete test technical field particularly relates to a concrete gas permeability testing arrangement, include: the sealing device comprises a sealing cylinder, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, wherein a circular containing cavity is arranged inside the sealing cylinder, and at least two gas exhaust pipes are arranged on the side wall of the sealing cylinder; the cylindrical die sleeve is arranged inside the containing cavity, and a bearing plate is arranged at the bottom of the cylindrical die sleeve; the cover body is arranged above the sealing cylinder and used for sealing the containing cavity. The utility model discloses be equipped with detachable cylindric die sleeve in the inside of a sealed section of thick bamboo, form the one-tenth die cavity that holds the concrete between die sleeve and the sealed section of thick bamboo, the pump is aerifyd to the inboard space of cylindric die sleeve, through the concrete in one-tenth die cavity, by the blast pipe discharge of a sealed section of thick bamboo, so, be connected to the blast pipe through test equipment, test the gas permeability, and simultaneously, because the cylindric die sleeve can be dismantled, can change alone after the damage, do not influence the leakproofness of integrated device, can keep all the other parts to keep good test status, in order to guarantee the accuracy of test result.
Description
Technical Field
The utility model relates to a concrete test technical field particularly relates to a concrete gas permeability testing arrangement.
Background
The permeability is a main index of the durability of concrete, and refers to the difficulty of permeation, diffusion or migration of gas liquid or ions in the concrete under the action of a pressure chemical potential or an electric field. Since concrete is a porous material, the strength of the concrete is affected by the existence of pores, and the internal pore structure of the concrete is closely related to the impermeability, air tightness, corrosion resistance and the like, for example, concrete carbonization, steel bar corrosion and freeze-thaw damage are mainly controlled by the diffusion rate of gases, fluids and soluble harmful substances such as CO, HC1, SO42 and the like penetrating into the concrete.
At present, the air permeability test of concrete is formed by using a die sleeve and a sealing element, the die sleeve and the sealing element are usually integrally formed, the concrete needs to be dismantled on the die sleeve after each test, and after multiple tests, the die sleeve is easily damaged, so that the sealing failure is caused, and the test data of the device is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects of the prior art, a concrete air permeability testing device is provided, include:
the sealing device comprises a sealing cylinder, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, wherein a circular accommodating cavity is formed in the sealing cylinder;
the cylindrical die sleeve is arranged in the accommodating cavity, and a bearing plate is arranged at the bottom of the cylindrical die sleeve;
the cover body is arranged above the sealing cylinder and used for sealing the containing cavity;
the cover body is provided with a plurality of vent holes, the cover body is provided with an inflator pump, and the exhaust end of the inflator pump is connected to the inflation cavity and used for inflating in the inflation cavity.
Preferably, the cylindrical die sleeve is a stainless steel plate with the thickness of 3-5 mm.
Preferably, the aperture of the vent hole is 20-30cm.
Preferably, the side wall of the sealing cylinder is provided with an interlayer, and the interlayer is used for filling a cooling medium or a heat medium so as to enable the forming cavity to be in different temperature ranges.
Preferably, the bearing plate is annular, the bearing plate is welded to the bottom of the cylindrical die sleeve, and the bearing plate is attached to the bottom of the sealing cylinder.
Preferably, the cover body is provided with a pressing ring with the same section as the forming cavity and used for blocking the upper end of the forming cavity.
Preferably, a silica gel pad is arranged between the cover body and the sealing cylinder.
Preferably, the cover body and the sealing cylinder are connected through threads.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses be equipped with detachable cylindric die sleeve in the inside of a sealed section of thick bamboo, form the one-tenth die cavity that holds the concrete between die sleeve and the sealed section of thick bamboo, the pump is aerifyd to the inboard space of cylindric die sleeve, through the concrete in one-tenth die cavity, by the blast pipe discharge of a sealed section of thick bamboo, so, be connected to the blast pipe through test equipment, test the gas permeability, and simultaneously, because the cylindric die sleeve can be dismantled, can change alone after the damage, do not influence the leakproofness of integrated device, can keep all the other parts to keep good test status, in order to guarantee the accuracy of test result.
It should be understood that all combinations of the foregoing concepts and additional concepts described in greater detail below can be considered as part of the inventive subject matter of the present disclosure unless such concepts are mutually inconsistent. In addition, all combinations of claimed subject matter are considered a part of the inventive subject matter of this disclosure.
The foregoing and other aspects, embodiments and features of the present teachings can be more fully understood from the following description in conjunction with the accompanying drawings. Additional aspects of the present invention, such as features and/or advantages of exemplary embodiments, will be apparent from the description which follows, or may be learned by practice of the specific embodiments in accordance with the teachings of the present invention.
Drawings
The figures are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the present invention will now be described, by way of example, with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural view of a concrete air permeability testing device shown in the present invention;
fig. 2 is a cross-sectional view of the concrete air permeability testing apparatus of the present invention;
fig. 3 is a schematic structural view of the cylindrical die case 4 according to the present invention.
Detailed Description
For a better understanding of the technical content of the present invention, specific embodiments are described below in conjunction with the accompanying drawings.
In this disclosure, aspects of the present invention are described with reference to the accompanying drawings, in which a number of illustrative embodiments are shown. Embodiments of the present disclosure are not necessarily intended to encompass all aspects of the invention. It should be understood that the various concepts and embodiments described above, as well as those described in greater detail below, may be implemented in any of numerous ways in a concrete permeability testing apparatus, as the disclosed concepts and embodiments are not limited to any embodiment. Additionally, some aspects of the present disclosure may be used alone or in any suitable combination with other aspects of the present disclosure.
With reference to fig. 1-2, the utility model provides a concrete gas permeability testing arrangement, it is main including a sealed section of thick bamboo 1, lid 2, pump 3 and cylindric die sleeve 4, sealed environment is constituteed to a sealed section of thick bamboo 1 and lid 2, cylindric die sleeve 4 is inside lid 2 and a sealed section of thick bamboo 1 for finalize the design and bear the weight of the concrete, and keep apart a gas filled environment, pump 3 aerifys in gas filled environment, makes gaseous concrete that passes, gas that spills over through the test, obtains the air permeability of concrete.
Further, a circular containing cavity is arranged inside the sealing cylinder 1, and at least two exhaust pipes 11 are arranged on the side wall of the sealing cylinder 1; a first end of the exhaust pipe 11 is connected to the inside of the sealing cylinder 1, and a second end of the exhaust pipe 11 is connected to the outside of the sealing cylinder 1.
In an alternative embodiment, the exhaust pipe 11 may be provided in two, one of which is connected to a flow meter for detecting the exhaust flow rate and the other of which is connected to a pressure meter for detecting the exhaust pressure.
In other embodiments, a plurality of exhaust pipes 11 may be provided, and a flow meter is connected to detect the flow rate at different positions, so as to detect the uniformity of concrete ventilation.
Further, as shown in fig. 2-3, the cylindrical mold sleeve 4 is disposed inside the cavity, and a bearing plate 41 is disposed at the bottom.
In an alternative embodiment, the cylindrical die case 4 is a 3-5mm thick stainless steel plate. The bearing plate 41 is annular, the bearing plate 41 is welded to the bottom of the cylindrical die sleeve 4, and the bearing plate 41 is attached to the bottom of the sealing cylinder 1.
In this way, after the cylindrical mold sleeve 4 is placed in the sealing cylinder 1, concrete can be poured on the bearing plate 41 and then set to form a concrete layer. And, when taking out after the experiment, easily take off the concrete layer on loading board 41, even after cylindrical die sleeve 4 warp and damages, also be easily changed, do not damage other structures.
Further, the cover body 2 is arranged above the sealing cylinder 1 and used for sealing the containing cavity; the cylindrical mold sleeve 4 divides the containing cavity into an inflating cavity 401 positioned on the inner side of the cylindrical mold sleeve 4 and a forming cavity 402 positioned on the outer side of the cylindrical mold sleeve, a plurality of vent holes 42 are arranged on the cylindrical mold sleeve 4, an inflator 3 is arranged on the cover body 2, and the exhaust end 32 of the inflator 3 is connected to the inflating cavity 401 and used for inflating the inflating cavity 401.
Specifically, after pouring the concrete in the 4 outsides of cylindric die sleeve, cover lid 2 on sealed section of thick bamboo 1, lid 2 is equipped with the clamping ring 22 the same with shaping chamber 402 cross-section for the upper end of shutoff shaping chamber 402, the outside of lid 2 is equipped with threaded connection portion 21, pass through threaded connection between lid 2 and the sealed section of thick bamboo 1, in order to guarantee inflation chamber 401 leakproofness, control pump 3's shift knob 31, make pump 3 work, pump gas in the inflation chamber 401, the gas permeability detects through the detection part of connecting on the blast pipe 11 of rethread.
In an alternative embodiment, the vent holes 42 have a hole size of 20-30cm.
Further, the side wall of the sealing cylinder 1 is provided with an interlayer 12, and the interlayer 12 is used for filling a cooling medium or a heating medium so as to enable the molding cavity 402 to be in different temperature ranges, and the air permeability is tested at different temperatures.
Preferably, a silica gel pad is arranged between the cover body 2 and the sealing cylinder 1 to improve the sealing performance of the cylinder body.
In combination with the above embodiment, the utility model discloses inside at a sealed section of thick bamboo is equipped with detachable cylindric die sleeve, form the one-tenth die cavity that holds the concrete between die sleeve and the sealed section of thick bamboo, the pump is aerifyd to the inboard space of cylindric die sleeve, through the concrete in one-tenth die cavity, by the blast pipe discharge of a sealed section of thick bamboo, therefore, be connected to the blast pipe through test equipment, test the gas permeability, and simultaneously, because cylindric die sleeve can be dismantled, can change alone after the damage, do not influence the leakproofness of integrated device, can keep all the other parts to keep good test status, with the accuracy of assurance test result.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. The present invention is well known in the art and can be modified and decorated without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (8)
1. A concrete gas permeability testing arrangement which characterized in that includes:
the sealing device comprises a sealing cylinder, a gas inlet pipe, a gas outlet pipe and a gas outlet pipe, wherein a circular containing cavity is arranged inside the sealing cylinder, and at least two gas exhaust pipes are arranged on the side wall of the sealing cylinder;
the cylindrical die sleeve is arranged inside the containing cavity, and a bearing plate is arranged at the bottom of the cylindrical die sleeve;
the cover body is arranged above the sealing cylinder and used for sealing the containing cavity;
the cover body is provided with a plurality of air holes, the cover body is provided with an inflating pump, and the air exhaust end of the inflating pump is connected to the inflating cavity and used for inflating the inflating cavity.
2. A concrete air permeability test device according to claim 1, wherein the cylindrical die sleeve is a stainless steel plate with a thickness of 3-5 mm.
3. A concrete air permeability test device according to claim 1, wherein the aperture of the vent hole is 20-30cm.
4. A concrete air permeability testing device according to claim 1, wherein the side wall of the sealing cylinder is provided with an interlayer for filling cooling medium or heating medium to make the forming cavity in different temperature ranges.
5. The apparatus of claim 1, wherein the bearing plate is ring-shaped, the bearing plate is welded to the bottom of the cylindrical mold sleeve, and the bearing plate is attached to the bottom of the sealing cylinder.
6. A concrete air permeability testing device according to claim 1, wherein the cover body is provided with a press ring with the same section as the forming cavity for blocking the upper end of the forming cavity.
7. The concrete air permeability testing device of claim 6, wherein a silicone gasket is arranged between the cover body and the sealing cylinder.
8. A concrete air permeability testing device according to any one of claims 1-7, wherein the cover body and the sealing cylinder are connected by screw threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220409797.0U CN217561278U (en) | 2022-02-28 | 2022-02-28 | Concrete gas permeability testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220409797.0U CN217561278U (en) | 2022-02-28 | 2022-02-28 | Concrete gas permeability testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217561278U true CN217561278U (en) | 2022-10-11 |
Family
ID=83467871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220409797.0U Active CN217561278U (en) | 2022-02-28 | 2022-02-28 | Concrete gas permeability testing arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217561278U (en) |
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2022
- 2022-02-28 CN CN202220409797.0U patent/CN217561278U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240514 Address after: 276000 at the intersection of Huanghai Second Road and Huancheng Road in Pingshang Town, Lingang Economic Development Zone, Linyi City, Shandong Province Patentee after: Linyi Wankai Building Materials Co.,Ltd. Country or region after: China Address before: 221136 Liuquan Town Industrial Park, Tongshan District, Xuzhou City, Jiangsu Province Patentee before: XUZHOU SANCHENG CASTING Co.,Ltd. Country or region before: China |