Water reaction type cold patch asphalt mixture test piece curing box

Abstract

The utility model provides a water reaction type cold patch asphalt mixture test piece curing box which comprises a box body, a bearing table, a spraying mechanism, a temperature adjusting mechanism and a control mechanism, the bearing table is arranged in the box body, and the bearing table is used for bearing a test block; the spraying mechanism is arranged on the box body and used for spraying towards the bearing table, the temperature adjusting mechanism is arranged in the box body and used for adjusting the temperature in the box body, and the control mechanism is arranged on the box body and electrically connected with the spraying mechanism and the temperature adjusting mechanism at the same time. The temperature adjusting mechanism is controlled by the control mechanism, so that the temperature in the box body is maintained at a set value, and the spraying mechanism is controlled by the control mechanism, so that the amount of water sprayed by the spraying mechanism is maintained at a set value. According to the application, the environment of a region needing to be tested is truly simulated through the cooperation of all the parts, the test does not need to be carried out on a real site, and a large amount of time cost and labor cost are saved.

Description

Technical Field

[0001] The utility model relates to the field of asphalt pavement maintenance and repair, and particularly relates to a curing box for specimens of water-reactive cold-patch asphalt mixture. Background Technique

[0002] Pothole diseases, as a kind of pavement diseases occurring in the early stage of asphalt pavement, are the key work content of road daily maintenance. Due to the characteristics of high frequency, local and large dispersion of pothole diseases, to a certain extent, it restricts the application of hot mix asphalt mixture in pothole repair. The cold-patch asphalt mixture has performance advantages such as energy conservation, emission reduction, low carbon environmental protection, timely repair, safety and convenience, avoiding the defects of material and energy waste and construction season limitation of the traditional hot mix asphalt mixture pothole repair technology, and has been widely recognized. The water-reactive cold-patch asphalt mixture can quickly form strength through the cross-linking and curing reaction of water and resin, overcoming the disadvantages of slow strength formation and poor water stability of traditional cold-patch materials (solvent-based, emulsified), and has become the focus of research by scholars at home and abroad.

[0003] Since the cold-patch asphalt mixture for pothole repair has the characteristic of opening to traffic immediately after use, and at the same time, China has rich climate conditions, and different climate regions can be divided according to three indicators of high temperature, low temperature and rainfall. The initial performance of the water-reactive cold-patch asphalt mixture is closely related to factors such as temperature and water. According to existing engineering experience, it is found that under different regions and different climate conditions, the water-reactive cold-patch asphalt mixture may fail and it is difficult to ensure the construction quality. Therefore, studying the strength formation mechanism of the cold-patch asphalt mixture under different climate conditions, ensuring that the water-reactive cold-patch asphalt mixture is not damaged during the process from forming and opening to traffic to strength formation, and ensuring its construction quality under different climates, is the key point of research on the water-reactive cold-patch asphalt mixture. If the cold-patch asphalt mixture under different climate conditions is tested on site, although the test results are the most reliable, China has a vast territory, and it will take a lot of time, manpower and material resources to go to each actual location for testing, which is not the best and advisable scheme for this research.

[0004] To sum up, there is an urgent need for a curing box for specimens of water-reactive cold-patch asphalt mixture to solve or at least partially solve the problems existing in the prior art. Content of the Utility Model

[0005] The purpose of the utility model is to provide a curing box for specimens of water-reactive cold-patch asphalt mixture, aiming to develop a curing box for forming and curing specimens of water-reactive cold-patch asphalt mixture under the coupled action of temperature and rainfall, so as to be used to simulate the climate conditions of different regions in China. The specific technical scheme is as follows:

[0006] A curing box for water-reactive cold-patch asphalt mixture specimens, comprising a box body, a bearing platform, a spraying mechanism, a temperature regulating mechanism and a control mechanism. The bearing platform is arranged inside the box body and is used to bear test blocks. The spraying mechanism is arranged on the box body, and the spray nozzles of the spraying mechanism are arranged facing the bearing platform. The temperature regulating mechanism is arranged on the inner side wall of the box body, and the control mechanism is arranged on the box body and is electrically connected to both the spraying mechanism and the temperature regulating mechanism at the same time.

[0007] Further, the spraying mechanism includes a water tank, a connecting pipe, a water volume regulating component and a spray head. The spray head is arranged at the upper part inside the box body and faces the bearing platform. One end of the connecting pipe is communicated with the water tank, the other end of the connecting pipe is communicated with the spray head, and the water volume regulating component is installed on the connecting pipe.

[0008] Further, the water volume regulating component includes a delivery pump and a flow-limiting valve, and the delivery pump and the flow-limiting valve are connected in series on the connecting pipe.

[0009] Further, it further includes a water reflux component. The water reflux component includes a storage box, a reflux pipe and a reflux pump. A first cavity and a second cavity are arranged inside the box body. The first cavity is arranged above the second cavity. The bearing platform and the temperature regulating mechanism are arranged in the first cavity. The storage box is arranged in the second cavity. The second cavity is communicated with the first cavity through a reflux hole. One end of the reflux pipe is communicated with the inside of the storage box, the other end of the reflux pipe is communicated with the water tank, and the reflux pump is arranged on the reflux pipe. The upper part of the storage box is open so that the storage box is arranged in butt joint with the reflux hole.

[0010] Further, the temperature regulating mechanism includes a refrigeration unit and a heating unit. The refrigeration unit is arranged on the inner side wall of the box body, and the heating unit is arranged inside the bearing platform. The refrigeration unit is used to cool the inside of the box body, and the heating unit is used to heat the inside of the box body.

[0011] Further, the bearing platform includes a platform body and a platform cover. The heating unit is arranged on the platform body, and the platform cover covers the platform body.

[0012] Further, a flange extending downward is arranged on the platform cover, and the flange is arranged circumferentially along the platform cover.

[0013] Further, it further includes an air flow disturbing mechanism, and the air flow disturbing mechanism is arranged on the inner side wall of the box body.

[0014] Further, it further includes a temperature sensor. The temperature sensor is arranged on the inner side wall of the box body and is used to detect the temperature inside the box body.

[0015] Further, a baffle is arranged between the temperature sensor and the spray head, and the baffle is fixedly connected to the inner wall of the box body.

[0016] Applying the technical solution of the present utility model has the following beneficial effects:

[0017] By placing the test blocks to be tested on the bearing platform, controlling the spraying mechanism and the temperature regulating mechanism through the control mechanism to simulate the climate environments of different regions. When placing the test blocks, multiple blocks need to be placed. After setting the parameters through the control mechanism, the test is carried out. The spraying mechanism sprays according to a certain time, and the size of the sprayed water volume is set. Through the control mechanism, the spraying mechanism can be set to continuous spraying or intermittent spraying to fully simulate the climate environment of each region. Take out a test block for mechanical testing at regular intervals, so as to truly simulate the actual mechanical properties of the material ratio corresponding to the test block under this climate environment. By setting the parameters of temperature and spraying volume using a water-reactive cold patch asphalt mixture specimen forming and curing box, the environment of the region where the test needs to be carried out is truly simulated, so as to obtain the test results of the test blocks under the environment of this region. This solution does not need to conduct tests at the real site, saving a large amount of time cost and labor cost.

[0018] In addition to the purposes, features and advantages described above, the present utility model has other purposes, features and advantages. The following will refer to Figures 1 - 3 for a further detailed description of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 is a schematic diagram of the overall structure of a water-reactive cold patch asphalt mixture specimen curing box of the present utility model;

[0021] Figure 2 is a schematic diagram of the internal structure of a water-reactive cold patch asphalt mixture specimen curing box of the present utility model;

[0022] Figure 3 is Figure 2 an enlarged view of part A in

[0023] Among them, 1. Box body; 11. First cavity; 12. Second cavity; 13. Return hole; 2. Bearing platform; 21. Platform body; 22. Platform cover; 221. Flange; 3. Spraying mechanism; 31. Water tank; 32. Connecting pipe; 33. Water volume regulating component; 331. Delivery pump; 332. Flow limiting valve; 34. Sprinkler head; 4. Temperature regulating mechanism; 41. Refrigeration unit; 42. Heating unit; 5. Control mechanism; 6. Water return component; 61. Storage box; 62. Return pipe; 63. Return pump; 7. Air flow disturbing mechanism; 8. Temperature sensor; 9. Baffle. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below, and preferred embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present utility model more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model.

[0026] Through research, it is found that developing a specimen forming and curing box for water-reactive cold-patch asphalt mixture under the coupling action of temperature (high temperature, low temperature) and rainfall, simulating the forming and curing process of water-reactive cold-patch asphalt mixture under the climate conditions (temperature, rainfall) of different regions in China, is crucial for the research and promotion of water-reactive cold-patch asphalt mixture, and also helps to greatly improve the daily maintenance quality of asphalt pavements in China.

[0027] Embodiment:

[0028] See Figures 1 - 3 , this embodiment provides a specimen curing box for water-reactive cold-patch asphalt mixture, which includes a box body 1, a bearing platform 2, a spraying mechanism 3, a temperature regulating mechanism 4 and a control mechanism 5. The bearing platform 2 is arranged in the box body 1, and the bearing platform 2 is used to bear test blocks; the spraying mechanism 3 is arranged on the box body 1, and the spray nozzles of the spraying mechanism 3 are arranged facing the bearing platform 2 to spray the materials placed on the bearing platform 2. The temperature regulating mechanism 4 is arranged in the box body 1, and the temperature regulating mechanism 4 is used to regulate the temperature inside the box body 1. The control mechanism 5 is arranged on the box body 1, and the operation surface of the control mechanism 5 is located outside the box body 4 to facilitate the adjustment of the control mechanism 5. The control mechanism 5 is electrically connected to the spraying mechanism 3 and the temperature regulating mechanism 4 at the same time. By controlling the temperature regulating mechanism 4 through the control mechanism 5, the temperature inside the box body 1 is maintained at a set value. By controlling the spraying mechanism 3 through the control mechanism 5, the amount of water sprayed by the spraying mechanism 3 is maintained at a set value.

[0029] Specifically, the control mechanism 5 includes a control panel for human-computer interaction and keys for inputting information. Pressing the keys according to the information prompts on the control panel can conveniently set the parameters of the control mechanism 5.

[0030] It is understandable that the test blocks to be tested are placed on the bearing platform 2, and the spraying mechanism 3 and the temperature regulating mechanism 4 are controlled by the control mechanism 5 to simulate the climate environments of different regions. When placing the test blocks, multiple blocks need to be placed. After setting the parameters through the control mechanism 5, the test is carried out, so that the spraying mechanism 3 sprays according to a certain time, and the size of the sprayed water volume is set. Through the control mechanism 5, the spraying mechanism 3 can be set to spray continuously or intermittently to fully simulate the climate environment of each region. One test block is taken out for mechanical testing at regular intervals, so as to truly simulate the actual mechanical properties of the material ratio corresponding to the test block under this climate environment. By setting the parameters of temperature and spraying volume with the water-reactive cold patch asphalt mixture specimen forming and curing box, the environment of the region to be tested is truly simulated, so as to obtain the test results of the test block under the environment of this region. This solution does not need to conduct tests at the real site, saving a large amount of time cost and labor cost.

[0031] Further, the spraying mechanism 3 includes a water tank 31, a connecting pipe 32, a water volume regulating component 33 and a nozzle 34. The nozzle 34 is arranged at the upper part inside the box body 1, and the nozzle 34 faces the bearing platform 2. One end of the connecting pipe 32 is communicated with the water tank 31, and the other end of the connecting pipe 32 is communicated with the nozzle 34. The water volume regulating component 33 is installed on the connecting pipe 32 to control the water spraying volume of the nozzle 34. Specifically, the water tank 31 is arranged on the top of the box body 1, the water in the water tank 31 is led to the nozzle 34 through the connecting pipe 32, and the water spraying volume of the nozzle 34 is adjusted through the water volume regulating component 33 to simulate regions with different precipitation amounts in different regions of our country, so as to realize the simulation of different precipitation amounts in different regions.

[0032] Further, the water volume regulating component 33 includes a delivery pump 331 and a flow limiting valve 332. The delivery pump 331 and the flow limiting valve 332 are connected in series on the connecting pipe 32. It is understandable that the water spraying volume of the nozzle 34 is regulated through the flow limiting valve 332, and the flow rate of the water flow is actively controlled through the delivery pump 331 to more accurately control the water spraying volume of the nozzle 34. When a smaller rainfall is required, the flow limiting valve 332 can be opened by gravity to allow the water flow to flow out from the nozzle 34. When a larger water flow is required, the gravity flow alone cannot meet the requirements. By starting the delivery pump 331 to work and fully opening the flow limiting valve 332, more water is sprayed out from the nozzle 34 under the action of the delivery pump 331 to provide a larger water flow rate. A first air pipe is arranged above the water tank 31, and the first air pipe is communicated with the inside of the water tank 31. When the water in the water tank 31 is pumped out, the outside gas is introduced through the first air pipe to balance the air pressure in the water tank 31.

[0033] Further, it further includes a water reflux assembly 6. The water reflux assembly 6 includes a storage box 61, a reflux pipe 62, and a reflux pump 63. A first cavity 11 and a second cavity 12 are provided in the box body 1. The first cavity 11 is arranged above the second cavity 12. The bearing platform 2 and the temperature adjustment mechanism 4 are arranged in the first cavity 11. The storage box 61 is arranged in the second cavity 12. The second cavity 12 is communicated with the first cavity 11 through a reflux hole 13. One end of the reflux pipe 62 is communicated with the inside of the storage box 61, and the other end of the reflux pipe 62 is communicated with the water tank 31. The reflux pump 63 is arranged on the reflux pipe 62. The upper part of the storage box 61 is open so that the storage box 61 is docked with the reflux hole 13.

[0034] Specifically, the storage box 61 in the second cavity 12 is set as a drawer type. A handle is provided in front of the storage box 61. The storage box 61 can be conveniently pulled out of the second cavity 12 through the handle. It should be noted that the reflux pipe 62 is a flexible pipe. A certain gap is reserved between the upper part of the storage box 61 and the top of the second cavity 12 to facilitate pulling out the storage box 61 partially or completely from the second cavity 12. When the storage box 61 is pulled out partially from the second cavity 12, water can be added to the storage box 61. It can be understood that when the spray head 34 sprays water from the top of the first cavity 11, it sprays onto the specimen on the bearing platform 2 and flows to the bottom of the first cavity 11, and then flows through the reflux hole 13 at the bottom of the first cavity 11 into the storage box 61 in the second cavity 12 for collection. Under the action of the reflux water pump, the water is pumped from the storage box 61 to the water tank 31 at the top of the box body 1 through the reflux pipe 62, so as to form a circulating flow of water with the spraying mechanism 3.

[0035] Further, the temperature adjustment mechanism 4 includes a refrigeration unit 41 and a heating unit 42. The refrigeration unit 41 is arranged on the inner side wall of the box body 1, and the heating unit 42 is arranged in the bearing platform 2. The refrigeration unit 41 is used to cool the inside of the box body 1, and the heating unit 42 is used to heat the inside of the box body 1. Specifically, the refrigeration unit 41 is a thermoelectric cooler. The thermoelectric cooler is installed on the inner side wall of the first cavity 11 in the box body 1. The heating unit 42 is an electric heating wire, and the first light body is heated by electric heating to increase the temperature in the first cavity 11. Of course, in other embodiments, the refrigeration unit 41 can also use a compressor plus a condenser tube to refrigerate the first cavity 11; the heating unit 42 can also use a steam heating tube to heat the first cavity 11.

[0036] Furthermore, the carrier platform 2 includes a platform body 21 and a platform cover 22. The heating unit 42 is arranged on the platform body 21, and the platform cover 22 is covered on the platform body 21, so that the heating unit 42 is located between the platform body 21 and the platform cover 22. It can be understood that the upper surface of the platform cover 22 is used to place the test block, and the heating wire of the heating unit 42 directly heats the platform cover 22, so that the test block placed on the platform cover 22 can be heated faster. A second air pipe is arranged on the box body 1, and the second air pipe connects the outside with the first cavity 11, so that the steam generated in the first cavity 11 can be discharged through the second air pipe. At the same time, the second air pipe is used to balance the air pressure between the outside and the first cavity 11.

[0037] Furthermore, a downward-extending flange 221 is arranged on the platform cover 22, and the flange 221 is arranged circumferentially along the platform cover 22. It should be noted that in this embodiment, the platform cover 22 is disc-shaped, the platform body 21 is frustum-shaped, and the platform cover 22 is placed on the platform body 21. By arranging the flange 221 circumferentially, on the one hand, it prevents the platform cover 22 from moving on the platform body 21, and on the other hand, it prevents the water sprayed by the nozzle 34 from entering between the platform cover 22 and the platform body 21, causing damage to the heating wire of the heating unit 42.

[0038] Furthermore, an air flow disturbance mechanism 7 is further included, and the air flow disturbance mechanism 7 is arranged on the inner side wall of the box body 1. Specifically, the air flow disturbance mechanism 7 is a fan, and the air flow disturbance mechanism 7 is arranged in the middle of the inner side wall of the first cavity 11 in the box body 1. The air outlet of the fan is arranged parallel to the side wall and blows out horizontal air, accelerating the air convection in the first cavity 11 and making the temperature more uniform everywhere in the first cavity 11. In other embodiments, the air flow disturbance mechanism 7 can also be other mechanisms or devices that can drive the air flow in the first cavity 11 to flow.

[0039] Furthermore, a temperature sensor 8 is further included. The temperature sensor 8 is arranged on the inner side wall of the box body 1 and is used to detect the temperature inside the box body 1. It can be understood that the temperature inside the first cavity 11 is detected by the temperature sensor 8, and the temperature signal is transmitted to the control mechanism 5, and the refrigeration unit 41 or the heating unit 42 is controlled to work through the control structure, so as to control the temperature in the first cavity 11 to be maintained at a set value.

[0040] Furthermore, a baffle 9 is arranged between the temperature sensor 8 and the nozzle 34, and the baffle 9 is fixedly connected to the inner wall of the box body 1. Specifically, the baffle 9 is an arc-shaped baffle 9, and the baffle 9 is fixedly connected to the top wall of the first cavity 11. The water sprayed by the nozzle 34 is blocked by the arc-shaped baffle 9 to prevent the water sprayed by the nozzle 34 from affecting the temperature sensor 8, the air flow disturbance mechanism 7 and the refrigeration unit 41. In addition, gaps are left between the two ends of the arc-shaped baffle 9 and the first cavity 11, so that when the air flow disturbance mechanism 7 is working, the air flow can smoothly flow through the gap between the arc-shaped baffle 9 and the first cavity 11 and form a circulating flow in the first cavity 11.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A water-reactive cold patch asphalt mixture specimen curing box, characterized in that: It comprises a box body (1), a carrying platform (2), a spraying mechanism (3), a temperature regulating mechanism (4) and a control mechanism (5). The carrying platform (2) is arranged in the box (1), and the carrying platform (2) is used to carry the test block; The spray mechanism (3) is arranged on the box body (1), and the spray outlet of the spray mechanism (3) is arranged toward the supporting platform (2). The temperature adjustment mechanism (4) is arranged on the inner wall of the box body (1); The control mechanism (5) is arranged on the box body (1), and the control mechanism (5) is electrically connected to the spray mechanism (3) and the temperature adjustment mechanism (4) at the same time.

2. A water-reactive cold patch asphalt mixture specimen curing box according to claim 1, characterized in that: The spray mechanism (3) comprises a water tank (31), a connecting pipe (32), a water volume control component (33) and a spray head (34); the spray head (34) is arranged at the upper part of the box body (1), and the spray head (34) faces the supporting platform (2); one end of the connecting pipe (32) is connected to the water tank (31), and the other end of the connecting pipe (32) is connected to the spray head (34); and the water volume control component (33) is installed on the connecting pipe (32).

3. A water-reactive cold patch asphalt mixture specimen curing box according to claim 2, characterized in that: The water volume control component (33) comprises a delivery pump (331) and a flow limiting valve (332), and the delivery pump (331) and the flow limiting valve (332) are connected in series on the connecting pipe (32).

4. A water-reactive cold patch asphalt mixture specimen curing box according to claim 2, characterized in that: The invention also comprises a water reflux assembly (6), the water reflux assembly (6) comprising a storage box (61), a reflux pipe (62) and a reflux pump (63); a first cavity (11) and a second cavity (12) are arranged in the box (1); the first cavity (11) is arranged on the upper part of the second cavity (12); the supporting platform (2) and the temperature regulating mechanism (4) are arranged in the first cavity (11); and the storage box (61) is arranged in the second cavity. (12), the second cavity (12) is connected to the first cavity (11) via a reflux hole (13), one end of the reflux pipe (62) is connected to the interior of the storage box (61), and the other end of the reflux pipe (62) is connected to the water tank (31), the reflux pump (63) is arranged on the reflux pipe (62), and the upper part of the storage box (61) is opened so that the storage box (61) and the reflux hole (13) are connected to each other.

5. The water-reactive cold patch asphalt mixture specimen curing box according to claim 1, characterized in that: The temperature regulating mechanism (4) comprises a refrigeration unit (41) and a heating unit (42); the refrigeration unit (41) is arranged on the inner wall of the box (1), and the heating unit (42) is arranged inside the supporting platform (2); the refrigeration unit (41) is used to cool the inside of the box (1), and the heating unit (42) is used to heat the inside of the box (1).

6. A water-reactive cold patch asphalt mixture specimen curing box according to claim 5, characterized in that: The supporting platform (2) comprises a platform body (21) and a platform cover (22); the heating unit (42) is arranged on the platform body (21); and the platform cover (22) covers the platform body (21).

7. A water-reactive cold patch asphalt mixture specimen curing box according to claim 6, characterized in that: A flange (221) extending downward is arranged on the platform cover (22), and the flange (221) is arranged circumferentially along the platform cover (22).

8. The water-reactive cold patch asphalt mixture specimen curing box according to claim 1, characterized in that: It also comprises an airflow disturbance mechanism (7), wherein the airflow disturbance mechanism (7) is arranged on the inner side wall of the box body (1).

9. The water-reactive cold patch asphalt mixture specimen curing box according to claim 2, characterized in that: A temperature sensor (8) is also included. The temperature sensor (8) is arranged on the inner wall of the box (1) and is used to detect the temperature inside the box (1).

10. A water-reactive cold patch asphalt mixture specimen curing box according to claim 9, characterized in that: A baffle (9) is arranged between the temperature sensor (8) and the nozzle (34), and the baffle (9) is fixedly connected to the inner wall of the box body (1).

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