CN115015105A - Method and device for testing bonding performance of waterproof material under hydrothermal coupling effect - Google Patents
Method and device for testing bonding performance of waterproof material under hydrothermal coupling effect Download PDFInfo
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- CN115015105A CN115015105A CN202210625150.6A CN202210625150A CN115015105A CN 115015105 A CN115015105 A CN 115015105A CN 202210625150 A CN202210625150 A CN 202210625150A CN 115015105 A CN115015105 A CN 115015105A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
- G01N3/066—Special adaptations of indicating or recording means with electrical indicating or recording means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/18—Performing tests at high or low temperatures
Abstract
The invention relates to the technical field of waterproof layer testing, in particular to a method and a device for testing the bonding performance of a waterproof material under the action of hydrothermal coupling. The method for testing the bonding performance of the waterproof material under the action of hydrothermal coupling comprises the following steps: connecting a water supply pipe with a water injection hole of the test piece, and fixing the water supply pipe with the test piece; adjusting the water supply pressure of the water supply pipe according to the test requirement; if the water pressure is too high, releasing the pressure of the water supply pipe; controlling a heater to heat water in a water supply pipe to a test temperature, or controlling a heating plate to heat a test piece while the heater works; acquiring image data of a waterproof layer of a test piece in a test process, or acquiring expansion change data of the waterproof layer through a strain gauge; and analyzing the bonding performance evolution process of the waterproof layer based on the acquired data. The method can detect the interface characteristic of the bonding between the waterproof layer and the concrete, further analyze the evolution rule of the interface bonding performance, and is beneficial to promoting the development of the spraying waterproof technology in the high-ground-temperature tunnel.
Description
Technical Field
The invention relates to the technical field of waterproof layer testing, in particular to a method and a device for testing the bonding performance of a waterproof material under the action of hydrothermal coupling.
Background
With the popularization of the new Olympic tunnel construction method, the composite tunnel lining becomes the main lining form. Seepage of pressurized groundwater and existence of water flow passages in the lining are the root causes of leakage diseases of the tunnel, and particularly the water flow passages are more critical. As long as a water leakage point is formed in the waterproof layer, the waterproof layer and the secondary lining cannot be effectively attached closely, seepage water can flow in a gap between the waterproof layer and the secondary lining, a first waterproof system formed by the waterproof layer is completely ineffective, and at the moment, the waterproof layer is actually born by the secondary lining. Therefore, in the composite lining structure waterproof technology, the method has a particularly important significance in ensuring the integrity and effectiveness of the waterproof isolation layer.
In the spraying waterproof technology, the water pressure resistance bonding performance of the waterproof layer is the key for ensuring the normal work of the waterproof layer, and the bonding performance of the spraying waterproof layer and the sprayed concrete is directly related to the tunnel structure and personnel safety in the tunnel construction period. The existing waterproof layer water pressure resistant bonding performance test method mainly aims at normal temperature water and is difficult to meet the requirement of a high-ground temperature tunnel environment.
Disclosure of Invention
The invention aims to provide a method and a device for testing the bonding performance of a waterproof material under the hydrothermal coupling effect, which can be used for testing the bonding performance of a waterproof layer on a test piece, so that the interface characteristic of the bonding between the waterproof layer and concrete at high temperature can be detected, the evolution rule of the bonding performance of the interface can be further analyzed, and the development of a spraying waterproof technology in a high-ground-temperature tunnel can be promoted.
Embodiments of the invention may be implemented as follows:
in a first aspect, the invention provides a method for testing the bonding performance of a waterproof material under the action of hydrothermal coupling, which comprises the following steps:
manufacturing a test piece according to the test requirements;
mounting the test piece on the mounting frame, communicating a water supply pipe with a water injection hole of the test piece, and fixing the water supply pipe and the test piece;
adjusting the water supply pressure of the water supply pipe according to the test requirement; pressurizing in a step-by-step pressurizing mode;
controlling a heater to heat water in a water supply pipe to a test temperature, or controlling a heating plate to heat a test piece while the heater works;
acquiring image data of a waterproof layer of a test piece in a test process, or acquiring expansion change data of the waterproof layer through a strain gauge;
and analyzing the bonding performance evolution process of the waterproof layer based on the acquired data.
In a second aspect, the invention provides a device for testing the bonding performance of a waterproof material under the hydrothermal coupling effect, which is used for implementing the method for testing the bonding performance of the waterproof material under the hydrothermal coupling effect, wherein the device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect comprises a test piece, a mounting frame, a water supply assembly and a monitoring assembly;
the test piece comprises concrete layers and waterproof layers which are arranged in a stacked mode, and is connected with the mounting frame;
the water supply assembly is connected with the test piece through a pipeline and is used for injecting pressurized hot water into the bonding surface of the concrete layer and the waterproof layer;
the monitoring assembly is used for monitoring the water pressure resistant bonding performance of the concrete layer and the waterproof layer.
In an optional embodiment, the concrete layer is provided with a water injection hole, and the water injection hole penetrates through the concrete layer along the stacking direction of the concrete layer and the waterproof layer.
In an alternative embodiment, the water supply assembly comprises a high-temperature water tank, a pressurization station, a pressurization host and a water supply pipe;
the pressurizing station and the pressurizing main machine are both communicated with the high-temperature water tank; one end of the water supply pipe is communicated with the water outlet of the high-temperature water tank, and the other end of the water supply pipe is communicated with the water injection hole.
In an optional embodiment, the device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect further comprises a heating structure, wherein the heating structure comprises a heater arranged in the high-temperature water tank and a heating plate arranged on the water facing side of the test piece.
In an alternative embodiment, the monitoring component comprises a camera, which is directed towards the side of the waterproofing layer facing away from the concrete layer and is used to collect image data characterizing whether the interlayer bonding of the concrete layer and the waterproofing layer is failed.
In an alternative embodiment, the mounting frame comprises a frame body and a camera frame;
the test piece is connected with the frame body; the camera frame is located below the test piece and is used for installing the camera.
In an alternative embodiment, the camera frame comprises a slide rail, a slide block and a holder;
the slide rail is connected with the support body, and slider slidable ground is connected in the slide rail, and the cloud platform is connected with the slider, and the camera is connected with the cloud platform.
In an alternative embodiment, the monitoring assembly further comprises an infrared laser head;
the infrared laser head is connected with the sliding block and used for emitting infrared rays to the waterproof layer.
In optional embodiment, the monitoring subassembly still includes the foil gage, and the foil gage is connected in the waterproof layer and deviates from one side on concrete layer, and the foil gage is used for monitoring the bulging condition of waterproof layer.
The embodiment of the invention has the beneficial effects that:
the method for testing the bonding performance of the waterproof material under the hydrothermal coupling effect comprises the following steps: manufacturing a test piece according to the test requirements; mounting the test piece on the mounting frame, communicating a water supply pipe with a water injection hole of the test piece, and fixing the water supply pipe and the test piece; adjusting the water supply pressure of the water supply pipe according to the test requirement; if the water pressure is too high, releasing the pressure of the water supply pipe; controlling a heater to heat water in a water supply pipe to a test temperature, or controlling a heating plate to heat a test piece while the heater works; acquiring image data of a waterproof layer of a test piece in a test process, or acquiring expansion change data of the waterproof layer through a strain gauge; and analyzing the bonding performance evolution process of the waterproof layer based on the acquired data.
The method for testing the bonding performance of the waterproof material under the hydrothermal coupling effect can be used for testing the bonding performance of the waterproof layer on a test piece, so that the interface characteristic of the bonding of the waterproof layer and concrete is detected, the evolution rule of the bonding performance of the interface can be analyzed, and the development of a spraying waterproof technology in a high-ground-temperature tunnel is promoted.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed 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 device for testing the bonding performance of a waterproof material under the action of hydrothermal coupling in an embodiment of the invention;
FIG. 2 is a schematic diagram of a camera stand according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a slider according to an embodiment of the present invention.
Icon: 200-a device for testing the bonding performance of the waterproof material under the action of hydrothermal coupling; 210-a test piece; 220-a mounting frame; 230-a water supply assembly; 240-a monitoring component; 211-concrete layer; 212-a waterproof layer; 213-water injection hole; 231-a high temperature water tank; 232-a pressurizing station; 233-water supply pipe; 234-pressurization host; 251-a heating plate; 260-temperature control box; 241-a camera; 221-frame body; 222-a camera frame; 223-a slide rail; 224-a slider; 225-pan-tilt; 242-infrared laser head; 226-locking knob; 227-first division; 228-a second subsection; 229-a pulley; 261-hollow screw.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the 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 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 figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within 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 present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
In recent years, high polymer grouting materials and technologies are widely applied in the relevant fields of geotechnical engineering, the non-aqueous reaction high polymer materials widely applied at present are bi-component polyurethane, which is invented in 1937 by German Bayer (Otto Bayer), and the main characteristic is that the materials do not need on-site water participation and chemical reaction, but the bi-component materials react and expand, foam and solidify after being mixed, so that the material is suitable for both the water environment and the anhydrous environment. Meanwhile, polyurethane polymer, as a waterproof material, is also gradually applied to tunnel waterproofing. The high polymer material is used as a spraying material for construction by combining a spraying film waterproof technology, so that the high polymer layer and the primary lining sprayed concrete are tightly combined together, and the excellent waterproof performance and the deformation capability of the high polymer layer are utilized, so that the high polymer layer is used as a waterproof layer to better solve the problem of tunnel water leakage.
The spraying waterproof technology is actively applied to tunnels and underground engineering at home and abroad at present, and the good waterproof effect of the spraying waterproof technology is gradually recognized, so that the spraying waterproof technology is one of important directions for development of the waterproof technology in the future tunnel engineering. The waterproof coating is a generic name of materials which can form a waterproof layer on a waterproof base surface by a brushing or spraying mode.
The deformation and the damage of the waterproof layer are important reasons of water leakage of the composite lining tunnel, wherein the key point is to research the interlayer interface characteristic problem between the tunnel sprayed waterproof layer and sprayed concrete, particularly the bonding property evolution problem under the action of high-temperature hot water. However, the engineering problem is researched a little at present, the development of a mechanical model and a design theory of a composite lining structure is hindered, and the problem of water leakage in the tunnel is solved disadvantageously.
Based on the above reasons, the embodiment provides a method for testing the adhesion performance of a waterproof material under the hydrothermal coupling effect, and the method for testing the adhesion performance of the waterproof material under the hydrothermal coupling effect comprises the following steps:
manufacturing a test piece 210 according to the test requirements;
mounting the test piece 210 on the mounting frame 220, communicating the water supply pipe 233 with the water injection hole 213 of the test piece 210, and fixing the water supply pipe 233 and the test piece 210;
adjusting the water supply pressure of the water supply pipe 233 according to the test requirements; if the water pressure is too high, the water supply pipe 233 is depressurized;
controlling the heater to heat the water in the water supply pipe 233 to a test temperature, or controlling the heating plate 251 to heat the test piece 210 while the heater is operated;
acquiring image data of the waterproof layer 212 of the test piece 210 in the test process, or acquiring expansion change data of the waterproof layer 212 through a strain gauge;
and analyzing the bonding performance evolution process of the waterproof layer 212 based on the collected data.
The method for testing the bonding performance of the waterproof material under the hydrothermal coupling effect can be used for testing the bonding performance of the waterproof layer 212 on the test piece 210, so that the interface characteristic of the bonding between the waterproof layer 212 and concrete is detected, the evolution rule of the interface bonding performance can be analyzed, and the development of a spraying waterproof technology in a high-ground-temperature tunnel is promoted.
Based on the above, please refer to fig. 1, fig. 1 shows a structure of a device for testing the adhesion performance of a waterproof material under a hydrothermal coupling effect in an embodiment of the present invention, in which the device 200 for testing the adhesion performance of a waterproof material under a hydrothermal coupling effect is provided, the device 200 for testing the adhesion performance of a waterproof material under a hydrothermal coupling effect is used for implementing the method for testing the adhesion performance of a waterproof material under a hydrothermal coupling effect, and the device 200 for testing the adhesion performance of a waterproof material under a hydrothermal coupling effect includes a test piece 210, a mounting frame 220, a water supply assembly 230, and a monitoring assembly 240;
the test piece 210 comprises a concrete layer 211 and a waterproof layer 212 which are arranged in a stacked mode, and the test piece 210 is connected with the mounting frame 220;
the water supply assembly 230 is connected with the test piece 210 through a pipeline, and the water supply assembly 230 is used for injecting pressurized hot water into the bonding surface of the concrete layer 211 and the waterproof layer 212;
the monitoring assembly 240 is used for monitoring the anti-hydraulic bonding performance of the concrete layer 211 and the waterproof layer 212.
Referring to fig. 1, the working principle of the device 200 for testing the bonding performance of the waterproof material under the hydrothermal coupling action is as follows:
the device 200 for testing the bonding performance of the waterproof material under the hydrothermal coupling effect comprises a test piece 210, a mounting rack 220, a water supply assembly 230 and a monitoring assembly 240; the test piece 210 comprises a concrete layer 211 and a waterproof layer 212 which are arranged in a stacked mode, and the test piece 210 is connected with the mounting frame 220; the water supply assembly 230 is connected with the test piece 210 through a pipeline, and the water supply assembly 230 is used for injecting pressurized hot water into the bonding surface of the concrete layer 211 and the waterproof layer 212; the monitoring assembly 240 is used for monitoring the anti-hydraulic bonding performance of the concrete layer 211 and the waterproof layer 212. The device 200 for testing the bonding performance of the waterproof material under the hydrothermal coupling effect can test the bonding performance of the waterproof layer 212 on the test piece 210, so that the interface characteristic of the bonding between the waterproof layer 212 and concrete is detected, the evolution rule of the bonding performance of the interface can be analyzed, and the development of a spraying waterproof technology in a high-ground-temperature tunnel is promoted.
Referring to fig. 1, the working steps of the device 200 for testing the bonding performance of the waterproof material under the hydrothermal coupling action are as follows:
manufacturing a test piece 210 according to the test requirements;
mounting the test piece 210 on the mounting rack 220, and butting the water supply assembly 230 against the test piece 210 mounted on the mounting rack 220;
installing the monitoring component 240, and determining that the test piece 210 is within the monitoring range of the monitoring component 240;
when the test is started, the water supply pressure of the water supply assembly 230 is adjusted according to the test requirement;
the monitoring component 240 is used for collecting relevant data of the waterproof layer 212 in the test process;
and analyzing the bonding performance evolution condition of the waterproof layer 212.
Further, based on the above, in the present embodiment, when the test piece 210 is manufactured, it is necessary to determine the corresponding size of the test piece 210 according to the requirement of the test, and to inject the pressurized hot water into the bonding surface between the concrete layer 211 and the waterproof layer 212, the concrete layer 211 is provided with the water injection hole 213, and the water injection hole 213 penetrates through the concrete layer 211 in the stacking direction of the concrete layer 211 and the waterproof layer 212. When the water injection hole 213 is opened, the water injection hole 213 may be opened at the center of the concrete layer 211; after the water injection is started, if the bonding failure occurs between the waterproof layer 212 and the concrete layer 211, the water injected into the bonding surface of the concrete layer 211 and the waterproof layer 212 flows out from the side surface of the test piece 210 under the action of the water pressure.
When the water supply assembly 230 is provided, the water supply assembly 230 functions to inject water to the test piece 210 and supply water pressure satisfying the test requirements, and therefore, the water supply assembly 230 includes a high temperature water tank 231, a pressurizing station 232, a pressurizing main machine 234, and a water supply pipe 233; the pressurizing station 232 and the pressurizing main machine 234 are both communicated with the high-temperature water tank 231; one end of the water supply pipe 233 is communicated with the outlet of the high temperature water tank 231, and the other end of the water supply pipe 233 is communicated with the water injection hole 213.
In the test process, because the existing water supply assembly 230 only acts on normal-temperature water and cannot judge the bonding performance failure performance under the action of high-temperature hot water, the device 200 for testing the bonding performance of the waterproof material under the action of hydrothermal coupling also comprises a heating structure, wherein the heating structure comprises a heater arranged in a high-temperature water tank 231, the water injected into the test piece 210 by the water supply assembly 230 can be heated by the heater, and the heater adopts a setting mode of being arranged in the high-temperature water tank 231 when being arranged; in addition, the heating structure further comprises a heating plate 251 arranged on the water facing side of the test piece 210, and the heating plate 251 is formed by reasonably bending and molding a tubular electric heating element serving as a heating body and then casting high-quality aluminum alloy and is connected with the temperature control box 260.
And in other embodiments of the present invention, the heater may be further connected to the water supply pipe 233.
In addition, because the actual engineering may face the coupling condition of high rock temperature and high water temperature, therefore, in order to realize the simulation of realizing high rock temperature while satisfying that high water temperature is exerted, the heating structure may further include a heating plate 251 disposed on a side of the concrete layer 211 departing from the waterproof layer 212. By placing the heating plate 251 on the side of the test piece 210 facing away from the waterproof layer 212, this corresponds to the radial heat transfer process of the surrounding rock in practice.
In the experiment process, the mounting rack 220 is used for effectively supporting the test piece 210, keeping the test piece 210 in a stable horizontal state, and facilitating the monitoring component 240 to effectively monitor and record the deformation of the waterproof layer 212. The mounting rack 220 does not clamp the test piece 210 up and down, that is, the test piece 210 is freely laid on the mounting rack 220, so as to effectively simulate the bonding failure process of the tunnel primary support-waterproof layer 212 structure under the action of water pressure in the construction period.
In addition, the top of the mounting frame 220 is a hollow metal frame structure, and a rubber pad can be laid on the metal frame. The test piece 210 is placed on the mounting rack 220 with the water inlet facing upwards, the middle part of the test piece 210 coincides with the middle part of the mounting rack 220, and the test piece 210 is required to be placed horizontally, so that the camera 241 can more accurately monitor deformation and water leakage of the waterproof layer 212.
Further, in order to monitor the change of the waterproof layer 212 in real time, the monitoring component 240 includes a camera 241, the camera 241 is opposite to the side of the waterproof layer 212 away from the concrete layer 211, and is used for collecting image data representing whether the interlayer bonding between the concrete layer 211 and the waterproof layer 212 is failed. It should be noted that, by collecting the image of the waterproof layer 212, the image of the waterproof layer 212 can be analyzed by observing the change of the image after the waterproof layer 212 is failed to adhere.
Referring to fig. 1 to 3, fig. 2 shows a structure of a camera frame 222 in an embodiment of the present invention, and fig. 3 shows a structure of a slider 224 in an embodiment of the present invention; when the cameras 241 are arranged, in order to ensure that the cameras 241 can obtain image data of the waterproof layer 212 in real time in the test process, the mounting frame 220 includes a frame body 221 and a camera frame 222; the test piece 210 is connected with the frame body 221; the camera stand 222 is located below the test piece 210, and is used to mount the camera 241. It should be noted that, when the mounting frame 220 is fixed relative to the ground, the camera frame 222 may also be connected to the ground; in order to obtain better images, the monitoring assembly 240 further comprises a light source, and before the test is started, black and white paint is uniformly sprayed on the outer side surface of the waterproof layer 212, and quadrant positions are delineated by a marker pen so as to facilitate subsequent quantitative analysis.
Further, when the camera 241 is arranged, in order to obtain the image data of the waterproof layer 212 in real time, when the camera 241 is arranged, it is necessary to ensure that the waterproof layer 212 is always within the image acquisition range of the camera 241, and thus, in the process of the test, in order to adjust the position of the camera 241 relative to the test piece 210, the camera frame 222 includes a slide rail 223, a slider 224, and a pan-tilt 225; the slide rail 223 is connected with the frame body 221, the slide block 224 is slidably connected with the slide rail 223, the pan-tilt 225 is connected with the slide block 224, and the camera 241 is connected with the pan-tilt 225. The position of the camera 241 relative to the test piece 210 can be adjusted by connecting the slider 224 with the slide rail 223; the angle of the camera 241 may be adjusted through the pan/tilt head 225, and the position of the camera 241 relative to the specimen 210 may be finely adjusted.
In addition, in order to make the camera 241 be directed to the center position of the test piece 210 and to facilitate setting a reference position in the acquired image data after acquiring the image data for subsequent image analysis, the monitoring assembly 240 further includes an infrared laser head 242; the infrared laser heads 242 are connected to the slider 224, and the infrared laser heads 242 emit infrared rays toward the waterproof layer 212. Through the arrangement of the infrared laser heads 242, when the infrared laser heads 242 emit infrared rays to the waterproof layer 212 and are positioned at the center of the waterproof layer 212, the position of the camera 241 can be adjusted to play a role in positioning; in addition, the arrangement mode can be used as a reference position of the image so as to be convenient for analyzing and comparing a plurality of images.
In order to limit the movement of the slider 224 with respect to the slide rail 223, the slider 224 is provided with a lock knob 226 that abuts against the slide rail 223 to increase the sliding resistance of the slider 224 with respect to the slide rail 223; when the sliding block 224 is provided, the sliding block 224 may include a first part 227 and a second part 228, the first part 227 is connected with the second part 228, and a plurality of pulleys 229 slidably engaged with the sliding rails 223 are disposed between the first part 227 and the second part 228; the infrared laser head 242 may be mounted on the first sub-portion 227, and the pan/tilt head 225 may be mounted on the second sub-portion 228, and the first sub-portion 227 is located relatively below the second sub-portion 228; in addition, in order to allow the infrared laser heads 242 to emit infrared rays to the waterproof layer 212, a hollow screw 261 through which the infrared rays emitted from the infrared laser heads 242 pass is connected to the second section 228.
Further, in other embodiments of the present invention, when the monitoring assembly 240 is disposed, the detection device further includes a strain gauge, the strain gauge is connected to a side of the waterproof layer 212 away from the concrete layer 211, and the strain gauge is used for monitoring a swelling condition of the waterproof layer 212.
In summary, referring to fig. 1 to fig. 3, the working steps of the device 200 for testing the adhesion property of the waterproof material under the action of the hydrothermal coupling are as follows:
manufacturing a test piece 210 according to test requirements;
mounting the test piece 210 on the mounting frame 220, communicating the water supply pipe 233 with the water injection hole 213 of the test piece 210, and fixing the water supply pipe 233 with the test piece 210;
a monitoring component 240 is installed, the camera 241 is connected with the holder 225, and the position of the sliding block 224 is adjusted through the sliding of the sliding block 224 on the sliding rail 223; meanwhile, the infrared laser heads 242 are opened, so that the light emitted by the infrared laser heads 242 is positioned at the center of the test piece 210;
fine-tuning the holder 225 to determine that the test piece 210 is within the image acquisition range of the camera 241;
when the test is started, the water supply pressure of the water supply assembly 230 is adjusted according to the test requirement; pressurizing in a step-by-step pressurizing mode;
controlling the heater to heat the water to a test temperature, or controlling the heating plate 251 to heat the test piece 210 while the heater works;
acquiring image data of the waterproof layer 212 through the camera 241 or acquiring expansion change data of the waterproof layer 212 through the strain gauge in the test process;
and analyzing the bonding performance evolution process of the waterproof layer 212 based on the collected data.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method for testing the bonding performance of a waterproof material under the action of hydrothermal coupling is characterized by comprising the following steps:
manufacturing a test piece according to the test requirements;
mounting the test piece on a mounting rack, communicating a water supply pipe with a water injection hole of the test piece, and fixing the water supply pipe and the test piece;
adjusting the water supply pressure of the water supply pipe according to the test requirement; pressurizing in a step-by-step pressurizing mode;
controlling a heater to heat water in the water supply pipe to a test temperature, or controlling a heating plate to heat the test piece while the heater works;
acquiring image data of a waterproof layer of the test piece in a test process, or acquiring expansion change data of the waterproof layer through a strain gauge;
and analyzing the bonding property evolution process of the waterproof layer based on the acquired data.
2. A device for testing the bonding performance of a waterproof material under the hydrothermal coupling effect is used for implementing the method for testing the bonding performance of the waterproof material under the hydrothermal coupling effect as claimed in claim 1, and is characterized in that:
the device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect comprises a test piece, a mounting rack, a water supply assembly and a monitoring assembly;
the test piece comprises concrete layers and waterproof layers which are arranged in a stacked mode, and the test piece is connected with the mounting rack;
the water supply assembly is connected with the test piece through a pipeline and is used for injecting pressurized hot water into the bonding surface of the concrete layer and the waterproof layer;
the monitoring assembly is used for monitoring the water pressure resistant bonding performance of the concrete layer and the waterproof layer.
3. The device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect according to claim 2, wherein:
the concrete layer is provided with a water injection hole, and the water injection hole penetrates through the concrete layer along the concrete layer and the stacking direction of the waterproof layer.
4. The device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect according to claim 3, wherein:
the water supply assembly comprises a high-temperature water tank, a pressurization station, a pressurization host and a water supply pipe;
the pressurizing station and the pressurizing main machine are both communicated with the high-temperature water tank; one end of the water supply pipe is communicated with the water outlet of the high-temperature water tank, and the other end of the water supply pipe is communicated with the water injection hole.
5. The device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect according to claim 4, wherein:
waterproof material bond property testing arrangement still includes heating structure under the hydrothermal coupling effect, heating structure including set up in heater in the high temperature water tank and set up in the hot plate that the test piece met water side.
6. The device for testing the bonding performance of the waterproof material under the hydrothermal coupling action according to any one of claims 2 to 5, wherein:
the monitoring assembly comprises a camera, the camera is right at one side of the waterproof layer, which deviates from the concrete layer, and is used for collecting image data representing whether the interlayer bonding of the concrete layer and the waterproof layer is invalid or not.
7. The device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect according to claim 6, wherein:
the mounting rack comprises a rack body and a camera rack;
the test piece is connected with the frame body; the camera frame is located below the test piece and used for mounting the camera.
8. The device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect according to claim 7, wherein:
the camera frame comprises a slide rail, a slide block and a holder;
the slide rail with the support body is connected, slider slidable connect in the slide rail, the cloud platform with the slider is connected, the camera with the cloud platform is connected.
9. The device for testing the bonding performance of the waterproof material under the hydrothermal coupling effect according to claim 8, wherein:
the monitoring assembly further comprises an infrared laser head;
the infrared laser head with the slider is connected, the infrared laser head is used for to the waterproof layer jets out the infrared ray.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210625150.6A CN115015105A (en) | 2022-06-02 | 2022-06-02 | Method and device for testing bonding performance of waterproof material under hydrothermal coupling effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202210625150.6A CN115015105A (en) | 2022-06-02 | 2022-06-02 | Method and device for testing bonding performance of waterproof material under hydrothermal coupling effect |
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