CN218823808U - Experimental device for real-time automatic detection concrete water absorption rate - Google Patents
Experimental device for real-time automatic detection concrete water absorption rate Download PDFInfo
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- CN218823808U CN218823808U CN202222991753.6U CN202222991753U CN218823808U CN 218823808 U CN218823808 U CN 218823808U CN 202222991753 U CN202222991753 U CN 202222991753U CN 218823808 U CN218823808 U CN 218823808U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The utility model discloses an experimental device for automatically detecting the water absorption rate of concrete in real time, which relates to the technical field of durability test of concrete materials and comprises a hollow cylinder water absorption unit, a water supply unit and a data acquisition unit; the rubber plug in the hollow cylinder water absorption unit and the test piece form a sealing structure, a water inlet pipe and a gas communicating pipe are installed on the rubber plug, the water inlet pipe is connected with a water supply unit through a rubber hose to supply water to the sealing structure, data are collected and recorded in real time through a data collection unit, and the water absorption rate of concrete is detected; the utility model discloses simple structure, the simple operation, the water receiver passes through flexible rubber hose and links to each other with seal assembly's inlet tube, can keep seal chamber middle water level's invariant, can guarantee that the test piece surface that absorbs water fully soaks in aquatic and be in encapsulated situation, reduces external environment's influence, through quality sensor and data collection station record water receiver quality change and through handling terminal real-time recording, has avoided artifical measurement experiment error.
Description
Technical Field
The utility model belongs to the technical field of the durability test of concrete material, in particular to experimental apparatus for real-time automatic measure concrete water absorption rate.
Background
Durability is one of the important properties of concrete materials, and has an important influence on the use safety and economic applicability of concrete structures. The concrete material comprises concrete material aggregate, a cementing material, an additive and the like, is a typical multi-item heterogeneous material, and has a large number of pore structures inside, so that a convenient channel is provided for the transmission and diffusion of moisture and other erosion media in a matrix. The durability of concrete materials is often related to the ease and speed with which aggressive media migrate and propagate through internal pore structures, cracks, and within the matrix. The water is a carrier of erosion media, and in an unsaturated state, a water absorption process generated by the capillary action of pores in the concrete is a main mechanism for water and water-soluble erosion media such as chloride ions, sulfate radicals and the like to invade the interior of a concrete material. Researches prove that clear and strict theoretical relationship exists between the capillary water absorption rate of concrete and the water diffusivity and permeability, and the water absorption capacity of the material under the pore capillary action can be quantitatively expressed. Therefore, the water absorption of concrete materials has been used as an important index for evaluating the impermeability, i.e., durability, of concrete materials.
At present, a gravimetric method is widely applied to the test process of the water absorption of the concrete surface because of simplification of required experimental devices and simplification of experimental operation, and the water absorption is calculated by measuring the accumulated water absorption mass of a unit area of a test piece in different time periods and is used for evaluating the transmission capacity of substances in pores of a concrete material and the durability. However, in the process of testing the water absorption rate of concrete by using the traditional gravimetric method, a test piece needs to be taken out for many times, the operation is complicated, accurate real-time automatic measurement cannot be achieved, and the influence of operation errors of operators is large.
Therefore, how to provide an experimental device for measuring the water absorption of concrete, which has a simple structure and is easy and convenient to operate, to reduce the measurement error is a problem that needs to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an experimental apparatus that can real-time automatic measure concrete material water absorption rate.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an experimental device for automatically detecting the water absorption rate of concrete in real time comprises a hollow cylinder water absorption unit, a water supply unit and a data acquisition unit; the water supply unit supplies water to the hollow cylinder water absorption unit, and the data acquisition unit acquires data of the water supply unit;
the hollow cylinder water absorption unit comprises a hollow concrete test piece to be detected and a sealing assembly;
the sealing assembly comprises a rubber plug, a gas communicating pipe, a vent valve and a water inlet pipe; the rubber plugs comprise a first rubber plug and a second rubber plug which are respectively arranged at two ends of the hollow part of the hollow concrete sample to be tested to form a sealing structure, and a sealing cavity is formed on the inner wall of the hollow concrete sample to be tested and the surface of the rubber plug;
further, a gas communicating pipe is arranged on the first rubber plug, and the vent valve is installed on the gas communicating pipe;
the water inlet pipe and the gas communicating pipe are arranged on the same rubber plug or different rubber plugs.
Further, the water supply unit comprises a water storage device, a water inlet valve and a rubber hose, and the water storage device is connected with the water inlet pipe in the sealing assembly through the rubber hose.
The water receiver is used for storing water in the beginning and the proceeding process of the experiment, the water receiver is connected with the water inlet pipe in the sealing assembly through the rubber hose, and the water can be controlled to enter the sealing cavity of the water absorption unit from the water receiver through the rubber hose by adjusting the water inlet valve.
A water inlet pipe in the sealing assembly is connected with a rubber hose in the water supply unit to provide water for entering a channel in the sealing cavity; the vent valve on the gas communicating pipe is controlled to discharge gas in the sealing cavity and the rubber hose, and whether the inside of the sealing cavity is full of moisture or not is judged according to the height of a water column in the gas communicating pipe, and the vent valve is controlled to prevent redundant moisture from gushing out from the gas communicating pipe.
The data acquisition unit comprises a mass sensor, a data acquisition unit and a processing terminal, wherein the mass sensor and the data acquisition unit are connected through USB data lines, and the data acquisition unit and the processing terminal are connected through the USB data lines. The quality change of the water receiver at any moment in the experimental process is sensed and measured by the quality sensor, then is collected by the data collector and finally is input into the processing terminal for storage and data processing.
Further, the inner surface of the hollow concrete test piece to be tested is a water absorption surface.
Furthermore, the side of first rubber buffer and second rubber buffer and rubber hose both ends all are scribbled epoxy glue.
Known through foretell technical scheme, compare with prior art, the utility model discloses following beneficial effect has:
1. the utility model discloses a both ends about the sealed cavity cylinder of rubber buffer unit of absorbing water form seal chamber in the cavity cylinder unit of absorbing water and are used for splendid attire moisture, have reduced the required equipment of experiment. In the experiment process, the water absorption surface of the test piece is fully soaked in water and is in a sealed state, so that the interference effect of external factors on the experiment is reduced.
2. The water receiver passes through the rubber hose and links to each other with seal assembly's inlet tube, can keep the invariant of water level in the seal chamber, turns into the mass loss of water receiver with the moisture that test piece absorbed, detects the water absorption rate of waiting to test the piece through the mass loss who takes notes the water receiver, has avoided the experimental error that brings the human operating factor of test piece among the traditional experimental method.
3. The data acquisition system caused by the mass sensor, the data acquisition unit and the processing terminal equipment can realize real-time, automatic and long-time measurement of the water absorption of the test piece at different moments, the experimental result reproducibility is good, the experimental method is simple and convenient to operate, experimental errors generated in the process of manually acquiring data due to the fact that the test piece needs to be taken out for multiple times in the traditional test method are avoided, and the method can be applied to the field of experimental research on crack structures and water absorption of concrete materials.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sealing assembly according to an embodiment of the present invention, and fig. 2 (a) and fig. 2 (b) are respectively structural diagrams of a second rubber plug and a first rubber plug of the sealing assembly according to the embodiment; fig. 2 (c) is an installation diagram of the vent valve, the gas communicating pipe and the water inlet pipe on the first rubber plug of the sealing assembly according to the embodiment.
Wherein 1 is the concrete test piece that awaits measuring of cavity, 21 is first rubber buffer, 22 is the second rubber buffer, 3 is the breather valve, 4 is gas communicating pipe, 5 is the inlet tube, 6 is the rubber hose, 7 is the water intaking valve, 8 is the water receiver, 9 is mass sensor, 10 is data acquisition unit, 11 is processing terminal.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The embodiment of the utility model discloses an experimental device for automatically detecting the water absorption rate of concrete in real time, which comprises a hollow cylinder water absorption unit, a water supply unit and a data acquisition unit, as shown in figure 1;
the hollow cylinder water absorption unit comprises a hollow concrete test piece 1 to be tested and a sealing component; the sealing component comprises a rubber plug, a gas communicating pipe 4, a vent valve 3 and a water inlet pipe 5; the rubber buffer includes first rubber buffer 21 and second rubber buffer 22, installs respectively at the both ends that the cavity awaits measuring concrete sample 1 hollow portion, forms seal structure, and the cavity awaits measuring concrete sample 1 inner wall and rubber buffer surface form seal chamber, are used for splendid attire moisture.
Wherein, the installation schematic diagram of the sealing assembly in the embodiment of the present invention is shown in fig. 2, a water inlet pipe 5 and a gas communicating pipe 4 are arranged on a first rubber plug 21, and a vent valve 3 is installed on the gas communicating pipe 4;
the water supply unit comprises a water storage device 8, a water inlet valve 7 and a rubber hose 6, wherein the water storage device 8 is connected with a water inlet pipe 5 in the sealing assembly through the rubber hose 6, and water is supplied to a channel entering the inside of the sealing cavity;
the data acquisition unit comprises a quality sensor 9, a data acquisition unit 10 and a processing terminal 11, wherein the quality sensor 9 is connected with the data acquisition unit 10 through a USB data line, and the data acquisition unit 10 is connected with the processing terminal 11 through a USB data line.
Further, the inner surface of the hollow concrete test piece 1 to be measured is a water absorption surface.
Further, the side surfaces of the first rubber stopper 21 and the second rubber stopper 22 and both ends of the rubber hose 6 are coated with epoxy resin glue.
In the specific embodiment, the vent valve 3 on the gas communication pipe 4 is controlled to discharge the gas inside the sealed chamber and in the rubber hose 6, and whether the inside of the sealed chamber is full of moisture is judged by the height of the water column in the gas communication pipe 4, and the vent valve 3 is controlled to prevent the excessive moisture from gushing out from the gas communication pipe.
The water reservoir 8 is used for storing water during the beginning and the proceeding of the experiment, the water reservoir is connected with the water inlet pipe 5 in the sealing assembly through the rubber hose 6, and the water can be controlled to enter the sealed cavity of the water absorption unit from the water reservoir 8 through the rubber hose 6 by adjusting the water inlet valve 7.
In another embodiment of the present invention, the gas communicating tube 4 is installed on the first rubber plug 21, the vent valve 3 is installed on the gas communicating tube 4, and the water inlet tube 5 can be installed on the second rubber plug 22 and connected to the water supply unit through the rubber hose 6.
The utility model discloses the real-time automatic detection concrete water absorption rate process of device does:
1. uniformly coating epoxy resin on the side surface of a rubber plug, and sealing two sides of a hollow concrete sample 1 to be detected by using the epoxy resin; two ends of the rubber hose 6 are coated with glue and are respectively connected to the water storage device 7 and the water inlet 5 of the sealing assembly; the quality sensor 9, the data collector 10 and the processing terminal 11 are connected by USB, and the processing terminal 11 can be a computer, a mobile phone, an ipad and other devices.
2. After the water level line is appointed by filling water into the water receiver 8, the vent valve 3 on the gas communicating pipe 4 in the seal assembly is firstly opened, and then the water inlet valve 7 of the water receiver 8 is opened, so that the water in the water receiver 8 is slowly filled into the seal cavity, and meanwhile, the gas in the rubber hose 7 and the seal cavity is discharged.
3. And observing the water level in the gas communication pipe 4 on the sealing assembly in the water filling process, closing the vent valve 3 in time after the water level exceeds the position of the vent valve 3 so as to prevent excess water from overflowing, and then supplementing water into the water storage device 8 to reach the specified water level.
4. The quality sensor 9, the data collector 10 and the processing terminal 11 are started, the quality change of the water receiver 8 is monitored in real time, the quality change is stored in processing terminal equipment and processed, the accumulated water absorption curves at different moments are drawn, the water absorption of the to-be-tested piece is detected by recording the quality loss of the water receiver, and the automatic real-time measurement of the water absorption of the concrete is realized.
In the experiment process, the water inlet valve 7 on the water storage device 8 is always kept in an open state, and the vent valve 3 of the gas communication pipe 4 is kept in a closed state.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. An experimental device for automatically detecting the water absorption rate of concrete in real time is characterized by comprising a hollow cylinder water absorption unit, a water supply unit and a data acquisition unit; the water supply unit supplies water to the hollow cylinder water absorption unit, and the data acquisition unit acquires data of the water supply unit;
the hollow cylinder water absorption unit comprises a hollow concrete test piece (1) to be tested and a sealing assembly;
the sealing component comprises a rubber plug, a gas communicating pipe (4), a vent valve (3) and a water inlet pipe (5); the rubber buffer includes first rubber buffer (21) and second rubber buffer (22), installs respectively the cavity concrete test piece (1) hollow portion's that awaits measuring both ends form seal structure.
2. The experimental device for automatically detecting the water absorption of the concrete in real time according to claim 1, wherein a gas communication pipe (4) is arranged on the first rubber plug (21), and the vent valve (3) is installed on the gas communication pipe (4);
the water inlet pipe (5) and the gas communicating pipe (4) are arranged on the same rubber plug or different rubber plugs.
3. The experimental device for automatically detecting the water absorption of concrete in real time according to claim 1, wherein the water supply unit comprises a water reservoir (8), a water inlet valve (7) and a rubber hose (6), the water reservoir (8) is connected with the water inlet pipe (5) through the rubber hose (6);
the data acquisition unit comprises a quality sensor (9), a data acquisition unit (10) and a processing terminal (11), wherein the quality sensor (9) is connected with the data acquisition unit (10) and the data acquisition unit (10) is connected with the processing terminal (11) through USB data lines.
4. The experimental device for automatically detecting the water absorption rate of the concrete in real time according to claim 1, wherein the inner surface of the hollow concrete sample (1) to be detected is a water absorption surface.
5. The experimental device for automatically detecting the water absorption of concrete in real time as claimed in claim 1, wherein the side surfaces of the first rubber stopper (21) and the second rubber stopper (22) and the two ends of the rubber hose (6) are coated with epoxy resin glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222991753.6U CN218823808U (en) | 2022-11-10 | 2022-11-10 | Experimental device for real-time automatic detection concrete water absorption rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222991753.6U CN218823808U (en) | 2022-11-10 | 2022-11-10 | Experimental device for real-time automatic detection concrete water absorption rate |
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| CN218823808U true CN218823808U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222991753.6U Active CN218823808U (en) | 2022-11-10 | 2022-11-10 | Experimental device for real-time automatic detection concrete water absorption rate |
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2022
- 2022-11-10 CN CN202222991753.6U patent/CN218823808U/en active Active
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