Seepage testing device for simulating mortar repair pavement

Abstract

The utility model relates to a building material performance test, in particular to a seepage test device for simulating mortar to repair a road surface, which comprises a shell, a cavity is arranged in the shell, phase change spheres are filled at the lower part of the cavity, mortar is injected from the upper part of the cavity and seeping into gaps among the phase change spheres at the lower part of the cavity under the action of gravity, and the mortar is filled into the shell. And after seepage is completed, heating to melt and discharge the phase change spheres to obtain the mortar seepage morphology. The device is simple in structure and convenient to operate, and mortar seepage paths and seepage morphology can be obtained.

Description

Technical Field

[0001] The utility model relates to a building material performance test, in particular to a seepage test device for simulating mortar repair of road surface. Background Art

[0002] The integrity and smoothness of roads have always been an important concern for traffic management. Rapid-hardening and early-strengthening repair mortars are often used to repair potholes, cracks, damage, sanding, and exposed gravel on concrete pavements. At present, laboratory studies often use the bond strength between mortar and base materials to indirectly reflect the effectiveness of mortar repairs. However, this method cannot intuitively reflect the specific seepage path and seepage morphology of exposed gravel and sand particles during mortar repair of pavement, and is difficult to use to reveal the consolidation mechanism of rapid-hardening and early-strengthening repair mortars to repair damaged pavements. Utility Model Content

[0003] The utility model aims to provide a seepage test device for simulating mortar repair of pavement, which has a simple structure, is easy to operate, and can obtain the mortar seepage path and seepage morphology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A seepage test device for simulating mortar repair of pavement comprises a shell, a cavity is provided in the shell, the lower part of the cavity is filled with phase change spheres, mortar is injected from the upper part of the cavity, and seeps into the gaps between the phase change spheres in the lower part of the cavity under the action of gravity, after the seepage is completed, the phase change spheres are heated to melt and discharge, thereby obtaining the mortar seepage morphology.

[0006] In some embodiments, the shell includes an upper cylinder and a lower cylinder that are detachably connected, an upper chamber is formed in the upper cylinder, a lower chamber is formed in the lower cylinder, and a partition component for switching between the upper chamber and the lower chamber is also connected to the shell; the upper chamber is used to inject mortar, and the lower chamber is used to fill the phase change spheres.

[0007] In some embodiments, the lower cylinder includes a left half and a right half that are detachably connected.

[0008] In some embodiments, the partition assembly is a plate body radially slidably connected to the shell, and the upper and lower parts of the cavity are disconnected or connected by sliding the plate body radially in or out of the shell.

[0009] In some embodiments, the partition component is an on-off valve connected to the housing.

[0010] In some embodiments, the partition assembly includes a fixed plate, a movable plate and an operating rod, the outer edge of the fixed plate is fixedly connected to the inner wall of the shell, the movable plate is movably connected to the bottom of the fixed plate, and the lower end of the operating rod passes through the fixed plate and is fixedly connected to the movable plate;

[0011] The fixed plate is provided with a plurality of first through holes, and the movable plate is provided with second through holes at positions corresponding to the first through holes on the fixed plate. The movable plate is driven to rotate relative to the fixed plate by rotating the operating rod. When the first through holes and the second through holes coincide or partially coincide, the upper chamber and the lower chamber are connected; when the first through holes and the second through holes are staggered, the upper chamber and the lower chamber are disconnected.

[0012] In some embodiments, an opening communicating with the cavity is provided at the upper end of the shell, and a cover plate is connected to the opening.

[0013] In some embodiments, the phase change sphere is made of paraffin and has a particle size of 0.15-40 mm.

[0014] The beneficial effects of the utility model are as follows: by filling the lower part of the cavity inside the shell with phase-change spheres, during testing, mortar is injected from the upper part of the cavity, and seeps into the gaps between the phase-change spheres in the lower part of the cavity under the action of gravity. After the seepage solidification is completed, the test block is taken out. The test block is heated to melt and discharge the phase-change spheres, and the mortar seepage morphology is obtained. The structure is simple, the operation is convenient, and the mortar seepage morphology can be directly observed to obtain the mortar seepage path. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 One of the structural schematic diagrams of the seepage test device for simulating mortar repair of pavement provided by an embodiment of the utility model is shown;

[0016] Figure 2 The second structural schematic diagram of the seepage test device for simulating mortar repair of pavement provided by the embodiment of the utility model is shown;

[0017] Figure 3 A schematic diagram showing the connection between the upper cylinder and the lower cylinder provided in an embodiment of the utility model is shown;

[0018] Figure 4 The structure diagram of the lower cylinder provided by the embodiment of the utility model is shown;

[0019] Figure 5 One of the structural schematic diagrams of the partition assembly provided by the embodiment of the utility model is shown;

[0020] Figure 6 The second structural schematic diagram of the partition assembly provided by the embodiment of the utility model is shown.

[0021] In the figure, 1—shell, 11—upper cylinder, 111—first ear, 12—lower cylinder, 121—second ear, 122—left half, 123—right half, 2—cavity, 21—upper chamber, 22—lower chamber, 3—phase change sphere, 4—mortar, 5—partition assembly, 51—plate, 52—handle, 53—fixed plate, 531—first through hole, 532—first mounting hole, 54—movable plate, 541—second through hole, 542—second mounting hole, 55—operating rod, 6—first fastener, 7—second fastener, 8—cover plate. DETAILED DESCRIPTION

[0022] The following will describe the implementation of the present invention with reference to the accompanying drawings and preferred embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be understood that the preferred embodiments are only for illustrating the present invention, not for limiting the scope of protection of the present invention.

[0023] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0024] In one embodiment, see Figure 1 As shown, a seepage test device for simulating mortar repair of pavement is provided, comprising a shell 1, a cavity 2 is provided in the shell 1, the lower part of the cavity 2 is filled with phase change spheres 3, mortar 4 is injected from the upper part of the cavity 2, and seeps into the gaps between the phase change spheres 3 in the lower part of the cavity 2 under the action of gravity. After the seepage solidification is completed, the test block is taken out. The test block is heated to melt and discharge the phase change spheres 3 to obtain the mortar seepage morphology. The device has a simple structure and is easy to operate. It can directly observe the mortar seepage morphology and obtain the mortar seepage path.

[0025] In one embodiment, see Figure 2 As shown, the shell 1 includes an upper cylinder 11 and a lower cylinder 12 which are detachably connected, an upper chamber 21 is formed in the upper cylinder 11, and a lower chamber 22 is formed in the lower cylinder 12. A partition component 5 for switching between the upper chamber 21 and the lower chamber 22 is also connected to the shell 1; the upper chamber 21 is used to inject mortar 4, and the lower chamber 22 is used to fill the phase change sphere 3.

[0026] Such an arrangement makes it easy to load and unload the housing 1, and can quickly switch the upper cylinder 11 and / or the lower cylinder 12 of different sizes and models according to actual test requirements, which is convenient and quick.

[0027] For example, see Figure 3 As shown, the upper cylinder 11 and the lower cylinder 12 are detachably connected by the first fastener 6. Specifically, a first lug 111 extending radially outward is provided at the lower end of the upper cylinder 11, and a second lug 121 extending radially outward is provided at the upper end of the lower cylinder 12. Both the first lug 111 and the second lug 121 are provided with through holes for allowing the first fastener 6 to pass through. During installation, the first lug 111 on the upper cylinder 11 is aligned with the second lug 121 on the lower cylinder 12, and the first lug 111 and the second lug 121 are fixedly connected by the first fastener 6. The first fastener 6 is preferably a bolt and a nut.

[0028] Exemplarily, the upper cylinder 11 and the lower cylinder 12 are detachably connected by a snap connection. Specifically, a snap connection sink is provided at the lower end of the upper cylinder 11, and a snap connection protrusion corresponding to the snap connection sink is provided at the upper end of the lower cylinder 12.

[0029] Since the lower cylinder 12 and the upper cylinder 11 are detachably connected, the upper part of the lower cylinder 12 can be set to an open form, which is convenient for quickly replacing phase change spheres 3 of different particle sizes to meet more mortar seepage performance test requirements and has a wider range of applications. And when the mortar 4 seeps and solidifies, the upper cylinder 11 and the lower cylinder 12 are disassembled and separated, so that the solidified test block in the lower cylinder 12 can be taken out more easily.

[0030] As a preferred implementation of this embodiment, see Figure 4 As shown, the lower cylinder 12 includes a detachably connected left half 122 and a right half 123. Exemplarily, the left half 122 and the right half 123 are detachably connected by a second fastener 7. After the mortar 4 seeps and solidifies, the connection between the upper cylinder 11 and the lower cylinder 12 is first separated, and then the connection between the left half 122 and the right half 123 is separated, so as to facilitate the removal of the solidified test block in the lower chamber 22.

[0031] In one embodiment, see Figure 5 As shown, the partition assembly 5 is a plate body 51 radially slidably connected to the shell 1, and the upper and lower parts of the cavity 2 are disconnected or connected by sliding the plate body radially in or out of the shell 1.

[0032] When used specifically, the plate 51 is radially slid into the space between the upper chamber 21 and the lower chamber 22 of the cavity 2 along the shell 1 to separate the upper chamber 21 and the lower chamber 22, and then the mortar 4 is injected into the upper chamber 21. After the amount of mortar 4 added reaches a preset value, the plate 51 is radially slid out of the shell 1 so that the upper chamber 21 and the lower chamber 22 are connected, and the mortar 4 in the upper chamber 21 seeps into the gaps between the phase change spheres 3 in the lower chamber 22 under the action of gravity. After the seepage solidification is completed, the test block is taken out. The test block is heated to melt and discharge the phase change spheres 3, and the mortar seepage path and seepage morphology are obtained.

[0033] As a preferred implementation of this embodiment, in order to facilitate operation, a handle 52 is fixed to the end of the plate body 51 away from the housing 1 .

[0034] As a preferred implementation of this embodiment, see Figure 3 As shown, a support flange 112 extending radially inward is provided on the inner side of the lower end of the upper cylinder 11 to support the plate body 51 and prevent the plate body 51 from falling.

[0035] In one embodiment, the partition assembly 5 is an on-off valve connected to the housing 1 , and the connection or disconnection between the accommodating chamber 2 and the testing chamber 3 is achieved by opening and closing the on-off valve.

[0036] In one embodiment, see Figure 6 As shown, the partition assembly 5 includes a fixed plate 53, a movable plate 54 and an operating rod 55. The outer edge of the fixed plate 53 is fixedly connected to the inner wall of the housing 1, the movable plate 54 is movably connected to the bottom of the fixed plate 53, and the lower end of the operating rod 55 passes through the fixed plate 53 and is fixedly connected to the movable plate 54;

[0037] The fixing plate 53 has a first mounting hole 532 in the middle for the operating rod 55 to pass through, and a plurality of first through holes 531 are arranged around the first mounting hole 532. For example, there are four first through holes 531, which are evenly distributed around the first mounting hole 532.

[0038] A second mounting hole 542 fixedly connected to the operating rod 55 is provided in the middle of the movable plate 54 , and a second through hole 541 is provided around the second mounting hole 542 at a position corresponding to the first through hole 531 on the fixed plate 53 .

[0039] The movable plate 54 is driven to rotate relative to the fixed plate 53 by rotating the operating rod 55. When the first through hole 531 and the second through hole 541 coincide or partially coincide, the upper chamber 21 and the lower chamber 22 are connected; when the first through hole 531 and the second through hole 541 are offset, the upper chamber 21 and the lower chamber 22 are disconnected.

[0040] Such a configuration has a simple structure, is convenient and quick to operate, and facilitates rapid connection or disconnection of the accommodating chamber 2 and the testing chamber 3 .

[0041] In one embodiment, the upper end of the housing 1 is provided with an opening communicating with the cavity 2, and a cover plate 8 is connected to the opening. When in use, the cover plate 8 is opened, and mortar 4 is injected into the housing 1 from the upper part of the cavity 2.

[0042] In one embodiment, the phase change sphere 3 is made of paraffin wax with a particle size of 0.15-40 mm. The reasonable particle size range simulates the size of sand and stone used in pavement concrete. The use of paraffin wax is low in cost and has a low phase change temperature.

[0043] The above embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Any equivalent substitution or modification made by a person skilled in the art based on the present invention is within the protection scope of the present invention.

Claims

1. A seepage test device for simulating mortar repair of pavement, characterized in that: The invention comprises a shell (1), wherein a cavity (2) is provided in the shell (1), the lower part of the cavity (2) is filled with phase change spheres (3), mortar (4) is injected from the upper part of the cavity (2), and seeps into the gaps between the phase change spheres (3) in the lower part of the cavity (2) under the action of gravity, and after the seepage is completed, the phase change spheres are heated to melt and discharge, thereby obtaining a mortar seepage path and seepage morphology.

2. The seepage test device for simulating mortar repair of pavement according to claim 1 is characterized in that: The housing (1) comprises an upper cylinder (11) and a lower cylinder (12) which are detachably connected, an upper chamber (21) being formed in the upper cylinder (11), and a lower chamber (22) being formed in the lower cylinder (12), and a partition component (5) for switching between the upper chamber (21) and the lower chamber (22) is also connected in the housing (1); The upper chamber (21) is used for injecting mortar (4), and the lower chamber (22) is used for filling the phase change spheres (3).

3. The seepage test device for simulating mortar repair of pavement according to claim 2, characterized in that: The lower cylinder (12) comprises a left half (122) and a right half (123) which are detachably connected.

4. The seepage test device for simulating mortar repair of pavement according to claim 2, characterized in that: The partition assembly (5) is a plate body (51) radially slidably connected to the shell (1), and the upper and lower parts of the cavity (2) are disconnected or connected by sliding the plate body radially in or out of the shell (1).

5. The seepage test device for simulating mortar repair of pavement according to claim 2, characterized in that: The partition component (5) is an on-off valve connected to the housing (1).

6. The seepage test device for simulating mortar repair of pavement according to claim 2, characterized in that: The partition assembly (5) comprises a fixed plate (53), a movable plate (54) and an operating rod (55); the outer edge of the fixed plate (53) is fixedly connected to the inner wall of the housing (1); the movable plate (54) is movably connected to the lower side of the fixed plate (53); and the lower end of the operating rod (55) passes through the fixed plate (53) and is fixedly connected to the movable plate (54); The fixed plate (53) is provided with a plurality of first through holes (531), and the movable plate (54) is provided with second through holes (541) at positions corresponding to the first through holes (531) on the fixed plate (53). The movable plate (54) is driven to rotate relative to the fixed plate (53) by rotating the operating rod (55). When the first through holes (531) and the second through holes (541) overlap or partially overlap, the upper chamber (21) and the lower chamber (22) are connected; when the first through holes (531) and the second through holes (541) are offset, the upper chamber (21) and the lower chamber (22) are disconnected.

7. The seepage test device for simulating mortar repair of pavement according to claim 1 or 2, characterized in that: The upper end of the shell (1) is provided with an opening communicating with the cavity (2), and a cover plate (8) is connected to the opening.

8. The seepage test device for simulating mortar repair of pavement according to claim 1 or 2, characterized in that: The phase change sphere (3) is made of paraffin wax and has a particle size of 0.15-40 mm.

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