CN210071830U - Concrete shrinkage testing device and concrete curing room - Google Patents
Concrete shrinkage testing device and concrete curing room Download PDFInfo
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- CN210071830U CN210071830U CN201920932038.0U CN201920932038U CN210071830U CN 210071830 U CN210071830 U CN 210071830U CN 201920932038 U CN201920932038 U CN 201920932038U CN 210071830 U CN210071830 U CN 210071830U
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Abstract
The utility model relates to a civil engineering field particularly, relates to a concrete shrinkage testing arrangement and concrete curing room. The device comprises a base, a cover body and a humidity control device. Wherein, the base is used for placing the concrete test block. The cover body is arranged on the base and forms a closed space with the base so that the concrete test block is arranged in the closed space. The infrared distance measuring device is used for detecting the volume change of the concrete test block placed in the closed space. The humidity control device is used for detecting the humidity value of the closed space and humidifying or dehumidifying the closed space according to the detected humidity value. The device can measure the dimensional change of the concrete in three directions simultaneously, and makes comprehensive judgment on the volume stability of the concrete. The infrared distance measurement is used to replace the traditional dial indicator, and the test error is reduced. The humidity controller is added, so that the test block can be maintained in the test box body, and human errors caused by disassembly are avoided.
Description
Technical Field
The utility model relates to a civil engineering field particularly, relates to a concrete shrinkage testing arrangement and concrete curing room.
Background
At present, the test method for the volume stability of concrete is mainly divided into a contact method and a non-contact method, and the specific test method refers to GB/T50082-2009 Standard test method for the long-term performance and durability of common concrete. Both testing methods have certain limitations. For the contact method, the test can only test the deformation condition of the concrete in one direction, the test tool of the test is a dial indicator, the zero setting needs to be calibrated every time of measurement, the human error is increased to a certain extent, and in addition, the arrangement of the test block every time also has certain influence on the test result; for a non-contact method, the deformation condition of concrete in one direction can only be tested in an experiment, and a concrete test block can only be fixed in a steel test mould for the experiment during the test, so that the concrete can not be maintained, the growth of the concrete can be influenced, and the later volume change of the concrete can not be tested. Therefore, both methods can only roughly test the volume change condition of the concrete, and the volume change of the concrete is changed in all directions, so that the volume change condition of the whole concrete cannot be judged only through the volume change in one direction.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a concrete shrinkage testing arrangement can detect the volume change of a plurality of directions of concrete test block and does not need dismouting concrete test block many times, detects convenience, the precision is high.
Another object of the utility model is to provide a concrete curing room, this concrete curing room can test the volume change of concrete in the concrete oxidation, and it is high to detect the precision.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
a concrete shrinkage testing apparatus comprising: the base is used for placing a concrete test block; the cover body is arranged on the base and forms a closed space with the base so as to place the concrete test block in the closed space; the infrared distance measuring device is connected to the closed space and used for detecting the volume change of the concrete test block placed in the closed space; and the humidity control device is connected to the closed space and used for detecting the humidity value of the closed space and humidifying or dehumidifying the closed space according to the detected humidity value.
In a preferred embodiment of the present invention, the base has a bottom wall, a first side wall and a second side wall; first lateral wall and second lateral wall all connect in the diapire perpendicularly, and first lateral wall connects in the second lateral wall.
In a preferred embodiment of the invention, the projection of the cover onto the bottom wall in a direction perpendicular to the bottom wall is at least partially located in the bottom wall.
In the preferred embodiment of the present invention, the bottom wall is provided with a limiting groove, and the cover body is mounted in the limiting groove.
In the preferred embodiment of the present invention, the first side wall, the second side wall and the bottom wall are all provided with fasteners, and the cover body is fixed on the base through the fasteners.
In a preferred embodiment of the present invention, the cover body includes a top cover, a first side cover and a second side cover; the first side cover and the second side cover are both vertically connected to the top cover, and the top cover is connected to the first side wall and the second side wall; the first side cover and the second side cover are both vertically connected to the bottom wall; the top cover, the first side cover and the second side cover are all provided with first through holes; the infrared distance measuring device is communicated with the closed space through the first through hole.
In a preferred embodiment of the present invention, the cover body is further provided with a second through hole; the humidity control device is communicated with the closed space through the second through hole.
The utility model discloses in the preferred embodiment, infrared distance measuring device includes a plurality of infrared probes, device body and connecting wire, and a plurality of infrared probes pass through connecting wire and connect in the device body, and a plurality of infrared probes communicate a plurality of first through-holes.
In a preferred embodiment of the present invention, the humidity control device comprises a steam transmission pipe, a humidity result collection line, a water tank and a control device body, wherein one end of the steam transmission pipe is connected to the at least one second through hole, the other end of the steam transmission pipe is connected to the water tank, one end of the humidity result collection line is connected to the control device body, and the other end of the humidity result collection line is connected to the at least one second through hole.
A concrete curing room comprises the concrete shrinkage testing device.
The utility model has the advantages that:
the utility model provides a pair of concrete shrinkage testing arrangement, include: base, cover body and humidity control device. Wherein, the base is used for placing the concrete test block. The cover body is arranged on the base and forms a closed space with the base so that the concrete test block is arranged in the closed space. And the infrared distance measuring device is connected to the closed space and used for detecting the volume change of the concrete test block placed in the closed space. The humidity control device is connected to the closed space and used for detecting the humidity value of the closed space and humidifying or dehumidifying the closed space according to the detected humidity value. The concrete shrinkage testing device can measure the size change of concrete in three directions simultaneously, and comprehensively judges the volume stability of the concrete. And the positions of the fixed test block and the infrared probe reduce experimental errors. The infrared distance measurement is used to replace the traditional dial indicator, and the test error is reduced. The humidity controller is added, so that the test block can be maintained in the test box body, and human errors caused by disassembly are avoided.
The utility model provides a pair of concrete curing room, this concrete curing room include like foretell concrete shrinkage testing arrangement. This concrete curing room can detect the volume change of concrete test block when oxidizing the concrete test block through setting up foretell concrete shrinkage testing arrangement, and the precision is high.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a concrete shrinkage testing device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a base of a concrete shrinkage testing apparatus according to a first embodiment of the present invention;
fig. 3 is a schematic structural diagram of a cover body of a concrete shrinkage testing apparatus according to a first embodiment of the present invention;
fig. 4 is a schematic structural view of an infrared distance measuring device of a concrete shrinkage testing device according to a first embodiment of the present invention;
fig. 5 is a schematic structural diagram of a humidity control device of a concrete shrinkage testing apparatus according to a first embodiment of the present invention.
Icon: 100-concrete shrinkage testing device; 110-a base; 111-a bottom wall; 1112-a limiting groove; 112-a first side wall; 113-a second sidewall; 120-a cover body; 121-a top cover; 122-a first side cover; 123-a second side cover; 124-a second via; 125-a first via; 130-an infrared distance measuring device; 131-an infrared probe; 132-a device body; 133-connecting wires; 140-humidity control means; 141-vapor transfer pipe; 142-humidity results collection line; 143-a water tank; 144-an operation table; 145-a display; 150-fastener.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the utility model is used, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
First embodiment
Referring to fig. 1 to 5, the present embodiment provides a concrete shrinkage testing apparatus 100, which includes a base 110, a cover 120, an infrared distance measuring device 130, and a humidity control device 140.
Further, the base 110 is used for placing a concrete test block.
The cover body 120 is arranged on the base 110, so that the concrete test block is sealed in a sealed environment formed by the cover body 120 and the base 110, and a good detection environment is provided for subsequent detection of the volume shrinkage change of concrete.
Further, the base 110 has a bottom wall 111, a first side wall 112 and a second side wall 113. Further, the first sidewall 112 and the second sidewall 113 are both vertically connected to the bottom wall 111, and the first sidewall 112 is connected to the second sidewall 113.
Specifically, in the present embodiment, the base 110 is a half-enclosed cube welded from 3 stainless steel sheets 300mm × 300mm thick and 5mm thick.
In other alternative embodiments of the present invention, the base 110 may be made of other materials. Alternatively, materials that are resistant to corrosion or rust are not easily available.
In other alternative embodiments of the present invention, the thickness of the material selected for the base 110 can be selected according to actual requirements.
In other alternative embodiments of the present invention, the base 110 may be selectively connected by other processing techniques, and optionally, may be connected by bolts or the like.
By providing the base 110 with the bottom wall 111 and the first and second side walls 112 and 113 perpendicular to the bottom wall 111, an advantageous detection environment is provided for subsequent detection of volumetric shrinkage in multiple dimensions of a concrete test block placed on the base 110.
Further, a projection of the cover 120 on the bottom wall 111 in a direction perpendicular to the bottom wall 111 is at least partially located within the bottom wall 111.
Through locating the projection of the cover body 120 on the bottom wall 111 along the direction perpendicular to the bottom wall 111 at least partially in the bottom wall 111, the cover body 120 is ensured to be capable of completely sealing the whole bottom wall 111, so that when the cover body 120 is used for sealing a concrete test block, the base 110 and the cover body 120 can be ensured to form a sealed space, and further the accuracy of detection of the concrete test block is ensured.
Further, in the present embodiment, the cover 120 includes a top cover 121, a first side cover 122, and a second side cover 123.
Further, the first side cover 122 and the second side cover 123 are both vertically connected to the top cover 121, and the top cover 121 is connected to the first side wall 112 and the second side wall 113; the first side cover 122 and the second side cover 123 are both vertically connected to the bottom wall 111.
Specifically, in the present embodiment, the cover 120 may be a half-enclosed cube welded by 3 stainless steel plates with a thickness of 250mm × 250mm and a thickness of 5 mm.
As mentioned above, in the present embodiment, the base 110 is a half-enclosed cube welded from 3 stainless steel sheets with a thickness of 300mm × 300mm and a thickness of 5 mm. Therefore, when the cover 120 is placed on the bottom wall 111 of the base 110, the two half-enclosed cubes are disposed at opposite angles to each other, and therefore, the cover 120 can form a closed space in the base 110.
The base 110 and the cover body 120 are simple in structure and convenient to install, the formed closed space is good in sealing effect, the volume shrinkage of the subsequent concrete test block is favorably guaranteed, and the accuracy of the detection test structure is further guaranteed.
In other alternative embodiments of the present invention, the shape of the cover 120 may be alternatively set to other shapes, alternatively, a hemisphere or other irregular shape.
It should be understood that in other alternative embodiments of the present invention, the material of the cover 120 may be made of other materials that are corrosion resistant or not easy to rust; in other alternative embodiments of the present invention, the cover 120 may be formed integrally or made of a plurality of plates connected by a connecting member such as a bolt.
Further, a limiting groove 1112 is arranged on the bottom wall 111, and the cover 120 is installed in the limiting groove 1112.
By providing the limiting groove 1112 on the bottom wall 111, the stability of the connection between the cover 120 and the base 110 can be further ensured, and the cover 120 is prevented from sliding and the like to cause collision or damage to the concrete test block placed in the cover 120.
Further, in the present embodiment, two slots with a length of 200mm and a width of 5mm are disposed on the bottom wall 111, and the first side cover 122 and the second side cover 123 are respectively fixed in the two slots.
Two clamping grooves with the length of 200mm and the width of 5mm are arranged on the bottom wall 111, so that the first side cover 122 and the second side cover 123 of the cover body 120 can be matched with each other, and the cover body 120 can be firmly connected to the base 110.
In other alternative embodiments of the present invention, the specific size and shape of the above-mentioned slot can be selected and configured to match the actual size and shape of the cover 120.
Further, the first side wall 112, the second side wall 113 and the bottom wall 111 are all provided with fasteners 150, and the cover 120 is fixed on the base 110 by the fasteners 150.
Specifically, in the present embodiment, the fastening member 150 is a flap that is provided on the first side wall 112, the second side wall 113, and the bottom wall 111 and can be folded inward. The first side wall 112, the second side wall 113, and the bottom wall 111 are respectively provided with 2 fasteners 150, so that the cover 120 can be further fixed to the base 110.
Further, the top cover 121, the first side cover 122 and the second side cover 123 are all provided with a first through hole 125; the infrared distance measuring device 130 is connected to the enclosed space through the first through hole 125.
Further, the infrared distance measuring device 130 includes a plurality of infrared probes 131, a device body 132, and a connection wire 133, the plurality of infrared probes 131 are connected to the device body 132 through the connection wire 133, and the plurality of infrared probes 131 communicate with the plurality of first through holes 125.
Further, each infrared probe 131 can individually inspect the concrete test block, and feed back the detection data to the apparatus body 132, and perform individual analysis processing on each infrared probe 131.
In this example, the concrete test block was tested using a standard test block specified in GB/T50082-2009 Standard test method Standard for Long-term Performance and durability of ordinary concrete. Specifically, the concrete sample block was made in the shape of a cube of 200mm × 200mm × 200 mm. The number of the infrared probes 131 is set to 9. Specifically, 3 infrared probes 131 are respectively arranged in three directions, namely the upper surface of the square-shaped concrete test block and two opposite side surfaces, and the concrete test block is detected from the three directions, so that the multi-dimensional detection of the concrete test block is realized.
Through adopting infrared probe 131 to detect the volume shrink condition of concrete sample, can not cause the damage to the concrete test block to it is accurate to detect the structure, has realized non-contact nondestructive test, is favorable to popularizing and applying.
It should be noted that the infrared distance measuring device 130 may be selected from a model specification commonly used in the art.
Further, the humidity control device 140 includes a water vapor transmission pipe 141, a humidity result collecting line 142, a water tank 143, and a control device body. Wherein the control device body includes an operation panel 144 and a display 145. Further, one end of the water vapor transmission pipe 141 is connected to the at least one second through hole 124, the other end is connected to the water tank 143, and one end of the humidity result collecting line 142 is connected to the control device body, and the other end is connected to the at least one second through hole 124.
In the present embodiment, the number of the second through holes 124 is set to 2. In other alternative embodiments, other numbers of second through holes 124 may be provided according to actual needs.
The humidity control device 140 can timely humidify or dehumidify the temperature and humidity in the enclosed space formed by the base 110 and the cover 120. And then realized that the volume change of detecting the concrete test block when oxidizing the concrete test block, the precision is high.
The concrete shrinkage test apparatus 100 was tested as follows: the base 110 is horizontally placed on a horizontal test bench, and a prepared cube concrete test block of 200mm multiplied by 200mm is placed at the included angle part of the inner side of the base 110 of the device and is tightly attached to three walls of the base 110. The 9 infrared probes 131 are fixed on each cover of the enclosure 120, and the water vapor transmission tube 141 and the humidity result collecting line 142 are installed at the second through hole 124 of the enclosure 120. The connection wire 133 is connected to the apparatus body 132. The other ends of the water vapor transmission pipe 141 and the humidity result collecting line 142 are connected to the humidity control device 140. The cover body 120 is mounted along the retaining groove 1112, and after being tightly coupled to the retaining groove 1112, the fasteners 150 are turned inward to further fix the cover body 120. The joint between the cover 120 and the base 110 is sealed by polyurethane sealant or solid butter or vaseline, and the parts to be sealed also have the connector terminals. After the cover body 120 is fixed, the switch of the infrared distance measuring device 130 is turned on, the test is started, the distance data of each infrared probe 131 at different time points is recorded, the difference value between the distance data and the first measurement value of the test is the size variation of the corresponding time point, and the results of the three probes on the same plane are averaged, so that the volume variation condition of the concrete in three directions of X, Y, Z is judged. If the test tests show that the volume change condition of the test block needing to be maintained is met, after the initial distance is tested, the full-automatic humidity controller is started to ensure that the humidity in the box body is 95%, the humidity controller is kept in a starting state in the test process, and the concrete test block is maintained in the whole process.
Second embodiment
The present embodiment provides a concrete curing room comprising a concrete shrinkage testing device as described above. This concrete curing room can realize multidimension degree detection concrete test block non-contact test through setting up foretell concrete shrinkage testing arrangement.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Claims (10)
1. A concrete shrinkage testing device, comprising:
the base is used for placing a concrete test block;
the cover body is arranged on the base and forms a closed space with the base so as to enable the concrete test block to be placed in the closed space;
the infrared distance measuring device is connected to the closed space and used for detecting the volume change of the concrete test block placed in the closed space; and
and the humidity control device is connected to the closed space and used for detecting the humidity value of the closed space and humidifying or dehumidifying the closed space according to the detected humidity value.
2. The concrete shrinkage test apparatus of claim 1,
the base has a bottom wall, a first side wall and a second side wall;
the first side wall and the second side wall are both vertically connected to the bottom wall, and the first side wall is connected to the second side wall.
3. The concrete shrinkage test apparatus of claim 2,
the projection of the cover body on the bottom wall along the direction perpendicular to the bottom wall is at least partially positioned in the bottom wall.
4. The concrete shrinkage test apparatus of claim 3,
the diapire is provided with the spacing groove, the cover body is installed the spacing inslot.
5. The concrete shrinkage test apparatus of claim 4,
the first side wall, the second side wall and all be provided with the fastener on the diapire, the cover body passes through the fastener is fixed on the base.
6. The concrete shrinkage test apparatus of claim 2,
the cover body comprises a top cover, a first side cover and a second side cover; the first side cover and the second side cover are vertically connected to the top cover, and the top cover is connected to the first side wall and the second side wall; the first side cover and the second side cover are both vertically connected to the bottom wall; the top cover, the first side cover and the second side cover are all provided with first through holes; the infrared distance measuring device is communicated with the closed space through the first through hole.
7. The concrete shrinkage test apparatus of claim 3,
the cover body is also provided with at least two second through holes; the humidity control device is communicated with the closed space through at least two second through holes.
8. The concrete shrinkage test apparatus of claim 6,
infrared distance measuring device includes a plurality of infrared probe, device body and connecting wire, and is a plurality of infrared probe passes through connecting wire connect in the device body, it is a plurality of infrared probe intercommunication is a plurality of first through-hole.
9. The concrete shrinkage testing apparatus of claim 7,
the humidity control device comprises a water vapor transmission pipe, a humidity result acquisition line, a water tank and a control device body, wherein one end of the water vapor transmission pipe is communicated with at least one second through hole, the other end of the water vapor transmission pipe is communicated with the water tank, one end of the humidity result acquisition line is connected to the control device body, and the other end of the humidity result acquisition line is connected to at least one second through hole.
10. A concrete curing room, characterized in that it comprises a concrete shrinkage test device according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920932038.0U CN210071830U (en) | 2019-06-20 | 2019-06-20 | Concrete shrinkage testing device and concrete curing room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920932038.0U CN210071830U (en) | 2019-06-20 | 2019-06-20 | Concrete shrinkage testing device and concrete curing room |
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| CN210071830U true CN210071830U (en) | 2020-02-14 |
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| CN201920932038.0U Expired - Fee Related CN210071830U (en) | 2019-06-20 | 2019-06-20 | Concrete shrinkage testing device and concrete curing room |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112339096A (en) * | 2020-10-26 | 2021-02-09 | 广东博智林机器人有限公司 | Concrete curing system |
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2019
- 2019-06-20 CN CN201920932038.0U patent/CN210071830U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112339096A (en) * | 2020-10-26 | 2021-02-09 | 广东博智林机器人有限公司 | Concrete curing system |
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Granted publication date: 20200214 |