Equipment for testing water damage resistance of asphalt mixture
By designing the water-loss performance testing equipment for asphalt mixtures with watertight storage boxes, loading modules and data acquisition modules, the problem that existing equipment cannot accurately simulate water immersion and load on asphalt pavement is solved, and more realistic performance testing is achieved.
Patent Information
- Application Number
- CN202421998470.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-16
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-08-16
AI Technical Summary
In the prior art, there are shortcomings in the water loss resistance performance testing equipment of asphalt mixtures, which cannot accurately simulate the actual use environment of asphalt pavement under water immersion and vehicle load, resulting in the inaccurate test results.
A device including a watertight storage box, a water damage simulation module, a loading module and a data acquisition and analysis module was designed. The water immersion is simulated through the water pipe, the loading module simulates vehicle load, and provides different temperature conditions with the temperature sensor and heater. The data module collects and analyzes the water loss resistance of asphalt mixture in real time.
It realizes a more realistic reflection of the water loss resistance of asphalt mixture in the actual use environment, provides rich water damage simulation conditions, and improves the accuracy and reliability of the test.
Smart Images
Figure CN223259393U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of devices for asphalt mixture experiment simulation, in particular to a device for testing the water damage resistance of asphalt mixture. Background Art
[0002] In road construction, water damage to asphalt pavements manifests itself as the gradual breakdown of the bond between asphalt and aggregate under dynamic water erosion, leading to aggregate spalling. This progressive spalling of aggregate forms large potholes in the asphalt pavement. Water damage is one of the primary factors contributing to the failure of asphalt pavements, and the water damage resistance of asphalt mixtures is crucial to the durability and service life of roads. Therefore, developing equipment that can accurately test the water damage resistance of asphalt mixtures is crucial. Utility Model Content
[0003] The technical problem to be solved by the utility model is to overcome the defects of the testing equipment in the prior art in testing the water damage resistance of asphalt mixture, and to provide an asphalt mixture water damage resistance testing equipment.
[0004] The utility model solves the above technical problems through the following technical solutions:
[0005] An asphalt mixture water damage resistance performance testing device, the asphalt mixture water damage resistance performance testing device comprising:
[0006] A storage box, wherein the storage box is watertight and is used for storing asphalt mixture;
[0007] A water damage simulation module, comprising:
[0008] a water tank for storing water,
[0009] A first temperature sensor is provided in the water tank and is used to test the temperature of the water in the water tank.
[0010] a heater, the heater being arranged in the water tank and capable of heating the water in the water tank,
[0011] a water pipe, the water pipe being connected to the water tank and the storage box, and being used to transport water in the water tank to the storage box;
[0012] a loading module, wherein the loading module is capable of applying a rolling load to the asphalt mixture;
[0013] The data acquisition and analysis module can collect the water damage resistance data of the asphalt mixture in real time and analyze the water damage resistance of the asphalt mixture.
[0014] By setting up a watertight storage box, the asphalt mixture is placed in the storage box, and the water pipe transports water to the storage box as needed, the water can immerse the asphalt mixture, thereby simulating the scene of the asphalt pavement being soaked in water; the loading module can simulate the rolling load of the vehicle on the asphalt pavement when moving on the asphalt pavement; by setting up a first temperature sensor and a heater, the water in the water tank can be temperature detected and heated, providing water with different temperature conditions for the water resistance test of the asphalt mixture in the storage box, enriching the water damage simulation conditions of the asphalt mixture water damage resistance test equipment, and using the data acquisition and analysis module to collect in real time the water damage resistance performance data of the asphalt mixture when it is immersed in water and subjected to the rolling load of the loading module and analyze the water damage resistance performance of the asphalt mixture, thereby more realistically reflecting the water damage resistance performance of the asphalt mixture in the actual use environment.
[0015] Preferably, the water damage simulation module further includes a display screen, which is electrically connected to the temperature sensor and the heater. The display screen can display data collected by the first temperature sensor and has a touch screen operation function to change the state of the heater.
[0016] By setting up a display screen that integrates display and control, the operation of the asphalt mixture water damage resistance performance testing equipment is made more convenient.
[0017] Preferably, the water damage simulation module further includes a thermostat, and the thermostat is electrically connected to the heater and the display screen respectively.
[0018] By setting a thermostat, which is connected to the display screen and the heater, the asphalt mixture water damage resistance performance testing equipment can control the thermostat on the display screen to make the heater heat the water in the water tank to a specific temperature.
[0019] Preferably, the water damage simulation module further includes an operation button, and the operation button can change the state of the heater.
[0020] By setting an operation button, the operation button can also change the state of the heater, providing another operation method for changing the working state of the heater in addition to touch screen operation, thereby improving the reliability of the asphalt mixture water damage resistance performance test equipment.
[0021] Preferably, the water damage simulation module further includes a water pump and a plurality of nozzles, wherein the water pump can increase the water pressure in the water pipe, and the nozzles are connected to the ends of the water pipe and are used to spray water onto the asphalt mixture.
[0022] By setting up a water pump and a nozzle at the end of the water pipe, the nozzle can spray water of different pressures onto the asphalt mixture, thereby simulating the scene of the asphalt pavement being washed by water of different pressures.
[0023] Preferably, the water damage simulation module further includes a second temperature sensor, which is disposed in the storage box and is used to test the temperature of water in the storage box.
[0024] By providing the second temperature sensor, actual temperature data of the water soaking the asphalt mixture in the asphalt mixture water damage resistance test can be provided, thereby improving the accuracy of the data.
[0025] Preferably, the loading module includes:
[0026] a plurality of rollers, wherein the plurality of rollers are capable of rolling on the surface of the asphalt mixture and applying a load to the asphalt mixture;
[0027] a telescopic rod, wherein the plurality of rollers are connected to a telescopic portion of the telescopic rod;
[0028] A first driving mechanism is configured to drive the telescopic rod to extend or shorten.
[0029] The roller rolls on the surface of the asphalt mixture and applies a load to the asphalt mixture by adopting the structure of the roller, the telescopic rod and the first driving mechanism. The structure of the loading module is simple and reliable.
[0030] Preferably, the asphalt mixture water damage resistance testing equipment also includes
[0031] A sample placement module includes a sample table and a second driving mechanism. The sample placement module is arranged in the storage box. The sample table is used to place the asphalt mixture. The second driving mechanism can apply a force in the vertical direction to the sample table to make the sample table rise or fall.
[0032] By setting a sample placement module and setting the sample table of the sample placement module to be liftable, it is convenient to take and place the asphalt mixture and make the asphalt mixture contact with the roller.
[0033] Preferably, the asphalt mixture water damage resistance testing equipment further comprises a third driving mechanism, which can apply a force in a vertical direction to the loading module so that the loading module can rise or fall.
[0034] By arranging the loading module to be liftable, it is convenient to take and place the asphalt mixture and to make the asphalt mixture contact with the roller.
[0035] Preferably, the storage box is made of transparent material.
[0036] By setting the storage box to a transparent material, it is easy to observe the experimental conditions in the storage box.
[0037] The positive progressive effects of the present invention are: by providing a watertight storage box, the asphalt mixture is placed in the storage box, and the water pipe transports water to the storage box as needed, the water can immerse the asphalt mixture, thereby simulating the scene of the asphalt pavement being soaked in water; the loading module can simulate the effect of the vehicle on the asphalt pavement when moving on the asphalt pavement; by providing a first temperature sensor and a heater, the water in the water tank can be temperature detected and heated, providing water with different temperature conditions for the water resistance test of the asphalt mixture in the storage box, enriching the water damage simulation conditions of the asphalt mixture water damage resistance test equipment, and through the data acquisition and analysis module, the water damage resistance performance data of the asphalt mixture when it is immersed in water and the rolling load of the loading module are collected in real time, and the water damage resistance performance of the asphalt mixture is analyzed, thereby more realistically reflecting the water damage resistance performance of the asphalt mixture in the actual use environment. BRIEF DESCRIPTION OF THE DRAWINGS
[0038] Figure 1 This is a schematic diagram of the three-dimensional structure of an asphalt mixture water damage resistance testing device according to an embodiment of the present invention.
[0039] Figure 2 The present invention is a schematic cross-sectional view of an apparatus for testing the water damage resistance of asphalt mixture according to an embodiment of the present invention.
[0040] Description of reference numerals:
[0041] Chassis 1
[0042] Storage Box 2
[0043] Roller 21
[0044] Telescopic rod 22
[0045] First driving mechanism 23
[0046] Second temperature sensor 24
[0047] Thermostat 25
[0048] Water tank 3
[0049] Heater 31
[0050] Water pipe 32
[0051] General Manager 321
[0052] Cross pipe 322
[0053] Hose 323
[0054] Nozzle 33
[0055] Water pump 34
[0056] First temperature sensor 35
[0057] 4 displays
[0058] 5 operation buttons
[0059] 6 Drain outlet DETAILED DESCRIPTION
[0060] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.
[0061] like Figure 1 and Figure 2 As shown, this embodiment provides an asphalt mixture water damage resistance performance testing device, which includes a storage box 2, a water damage simulation module, a loading module, and a data acquisition and analysis module. Specifically, the storage box 2 is watertight and is used to store asphalt mixture. The water damage simulation module includes a water tank 3, a first temperature sensor 35, a heater 31, and a water pipe 32. The water tank 3 is used to store water. The first temperature sensor 35 is disposed in the water tank 3 and is used to measure the temperature of the water in the water tank 3. The heater 31 is disposed in the water tank 3 and is capable of heating the water in the water tank 3. The water pipe 32 connects the water tank 3 and the storage box 2 and is used to transport the water in the water tank 3 to the storage box 2. The loading module is capable of applying a rolling load to the asphalt mixture. The data acquisition and analysis module is capable of collecting real-time water damage resistance data of the asphalt mixture and analyzing the water damage resistance performance of the asphalt mixture.
[0062] By setting up a watertight storage box 2, the asphalt mixture is placed in the storage box 2, and the water pipe 32 transports water into the storage box 2 as needed to immerse the asphalt mixture, thereby simulating the scene of the asphalt pavement being soaked in water; the loading module can simulate the effect of the vehicle on the asphalt pavement when moving on the asphalt pavement; by setting up a first temperature sensor 35 and a heater 31, the water in the water tank 3 can be temperature detected and heated, providing water of different temperatures for the water resistance test of the asphalt mixture in the storage box 2, enriching the water damage simulation conditions of the asphalt mixture water damage resistance test equipment, and through the data acquisition and analysis module, the water damage resistance performance data of the asphalt mixture when it is immersed in water and subjected to the rolling load of the loading module and the water damage resistance performance of the asphalt mixture are analyzed in real time, thereby more realistically reflecting the water damage resistance performance of the asphalt mixture in the actual use environment.
[0063] Specifically, during the use of asphalt pavement, due to changes in weather and different sunshine hours, the temperature of accumulated water on the asphalt pavement is also different. Therefore, the asphalt mixture water damage resistance testing equipment provides water at different temperatures to test the water damage resistance of the asphalt mixture, which can enrich the water damage simulation conditions of the asphalt mixture water damage resistance testing equipment, thereby more realistically reflecting the water damage resistance of the asphalt mixture in the actual use environment.
[0064] Furthermore, the data collected by the data acquisition and analysis module includes data such as deformation and mass loss of the asphalt mixture. Processing and analyzing this data can reveal performance indicators of the asphalt mixture under water damage conditions, such as anti-stripping performance and durability. The specific data acquisition and data analysis methods of the data acquisition and analysis module are state-of-the-art and will not be detailed here.
[0065] In this embodiment, the asphalt mixture water damage resistance testing equipment comprises a chassis 1, a water tank 3, and a storage tank 2 disposed within the chassis 1. Storage tank 2 has a water outlet extending through the chassis 1 to discharge water from storage tank 2 to the exterior of the chassis 1. During each test, storage tank 2 is drained of water, and the water in water tank 3 is heated by heater 31. When the temperature sensor detects that the water in water tank 3 has reached the required temperature, water is delivered to storage tank 2 via water pipe 32 to soak the asphalt mixture. A rolling load is then applied to the asphalt mixture via a loading module, simulating the water damage process on an asphalt pavement.
[0066] In this embodiment, the water damage simulation module also includes a display screen 4 (LCD screen 4) with a built-in data acquisition and analysis system. Display screen 4 is located outside chassis 1 and is electrically connected to the temperature sensor and heater 31. Display screen 4 can display data collected by first temperature sensor 35 and has a touchscreen operation function to change the state of heater 31. In other words, display screen 4 has parameter display and touchscreen operation functions. It can display the temperature of the water in water tank 3 as detected by first temperature sensor 35, making it easier for researchers to determine the water temperature. Furthermore, touchscreen operation can be used to control heater 31, making the asphalt mixture water damage resistance testing equipment more convenient to operate.
[0067] Specifically, the water damage simulation module also includes a thermostat 25 that utilizes optical heating principles. Thermostat 25 is electrically connected to heater 31 and display screen 4. In other words, in this embodiment, the desired water temperature is selected by operating display screen 4. Thermostat 25, upon receiving a signal from display screen 4, controls the heating intensity and duration of heater 31. Heater 31 stops operating when the water temperature reaches the desired level. The thermostat 25 facilitates temperature control in the asphalt mixture water damage resistance testing equipment, eliminating the need for manual real-time temperature checks to ensure compliance, thereby enhancing the device's convenience and reliability.
[0068] The water damage simulation module also includes an operating button 5, located on the outside of the chassis 1. This button can also change the state of the heater 31. In other words, in the asphalt mixture water damage resistance testing device, the water temperature can be adjusted by either changing the operating state of the heater 31 using the touchscreen function of the display 4 or by simply operating the operating button 5. Having two ways to change the state of the heater 31 improves the reliability of the asphalt mixture water damage resistance testing device.
[0069] The specific structures of the display screen 4, the temperature controller 25 and the heater 31 involved in this embodiment, as well as the connection mode and control method between these components belong to the prior art and will not be described in detail here.
[0070] In this embodiment, the water damage simulation module also includes a water pump 34 and three nozzles 33. The water pump 34 increases the water pressure in the water pipe 32. The nozzles 33 are connected to the end of the water pipe 32 and are used to spray water onto the asphalt mixture. By providing the water pump 34 and the nozzles 33 at the end of the water pipe 32, the nozzles 33 can spray water at different pressures onto the asphalt mixture, simulating the scene of an asphalt pavement being washed by water at different pressures.
[0071] Specifically, the water pipe 32 includes a main pipe 321, a four-way pipe 322 and three terminal hoses 323. The water pump 34 is connected to the main pipe 321 to change the pressure and flow rate of the water in the water pipe 32. The main pipe 321 is connected to the three terminal hoses 323 through the four-way pipe 322. Each terminal hose 323 is connected to a nozzle 33, so as to realize extensive water spraying on the asphalt mixture to simulate the scene of rain or other jet water washing the asphalt pavement, further enriching the water damage simulation conditions of the asphalt mixture water damage resistance test equipment, and helping researchers to fully understand the water damage resistance of the asphalt mixture.
[0072] Of course, in other embodiments, the number of nozzles 33 can also be adjusted according to actual needs, which will not be described in detail here.
[0073] In this embodiment, the water damage simulation module also includes a second temperature sensor 24, which is located in storage box 2 and is used to measure the temperature of the water within storage box 2. Because the first temperature sensor 35 can only measure the temperature of the water within water tank 3, heat loss may occur during the process of transporting the water within water tank 3 to storage box 2 via water pipe 32. This can cause the temperature of the water actually soaking or flushing the asphalt mixture to deviate from the temperature measured by the first temperature sensor 35. Therefore, the provision of the second temperature sensor 24 can provide actual temperature data of the water soaking the asphalt mixture during the asphalt mixture water damage resistance test, improving data accuracy and providing accurate performance indicator evaluation results. Furthermore, by comparing the data from the first temperature sensor 35 and the second temperature sensor 24, it is possible to identify the temperature variation patterns of the water within water tank 3 and storage box 2, thereby making it easier for researchers to set the operating status of the heater 31.
[0074] In this embodiment, the loading module includes five rollers 21, a telescopic rod 22, and a first drive mechanism 23. The rollers 21 are capable of rolling on the surface of the asphalt mixture and applying a load to the asphalt mixture. The rollers 21 are connected to the telescopic portion of the telescopic rod 22, and the drive mechanism is capable of driving the telescopic rod 22 to extend or contract. Specifically, the first drive mechanism 23 drives the telescopic rod 22 to extend or contract. During the extension or contraction of the telescopic rod 22, the rollers 21 roll on the surface of the asphalt mixture, thereby applying a rolling load to the asphalt mixture. The rolling speed of the rollers 21 and the load applied to the asphalt mixture can be adjusted, and the specific operation of the loading module can also be controlled via the display screen 4.
[0075] The specific structural form of the first driving mechanism 23 is the existing technology. For example, the first driving mechanism 23 can be a telescopic motor or a hydraulic cylinder, etc. The method for the display screen 4 to control the load size and scrolling speed of the loading module also belongs to the existing technology and will not be repeated here.
[0076] In this embodiment, the asphalt mixture water damage resistance testing equipment further includes a sample placement module, which includes a sample table and a second drive mechanism. The sample placement module is disposed within storage box 2. The sample table is used to place the asphalt mixture, and the second drive mechanism is capable of applying a vertical force to the sample table to cause it to rise or fall. By providing the sample placement module and configuring the sample table to be elevatable, the asphalt mixture can be easily placed and retrieved, and brought into contact with roller 21.
[0077] The asphalt mixture water damage resistance testing equipment also includes a third drive mechanism that applies a vertical force to the loading module to raise or lower it. This makes it easier to remove and place asphalt mixture and bring it into contact with the roller 21.
[0078] Specifically, in this embodiment, the asphalt mixture is placed on the sample table of the sample placement module. To facilitate the placement and removal of the asphalt mixture, both the sample table and the loading module are configured to be raised and lowered. Specifically, when the asphalt mixture needs to be placed, the loading module is raised or the sample table is lowered, making it easier to place or remove the asphalt mixture. Once the asphalt mixture is placed, the loading module is lowered or the sample table is raised, ensuring that the loading module maintains a constant load on the asphalt mixture.
[0079] In this embodiment, the second driving mechanism and the third driving mechanism are also existing technologies, such as a motor and gear structure, or a hydraulic cylinder, etc., and will not be described in detail here.
[0080] In this embodiment, the material of the storage box 2 is transparent. Specifically, the material of the storage box 2 and the material of the front side of the chassis 1 in this embodiment are both transparent glass, which makes it easy for researchers to observe the experimental process and changes in the asphalt mixture in the storage box 2.
[0081] Of course, in other embodiments, the storage box 2 may also be a box made of other transparent materials in the prior art, and the front side of the chassis 1 may also be made into a hollow structure for observing the asphalt mixture, which will not be repeated here.
[0082] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.
Claims
1. An asphalt mixture water damage resistance testing device, characterized in that: The asphalt mixture water damage resistance testing equipment includes: A storage box, wherein the storage box is watertight and is used for storing asphalt mixture; A water damage simulation module, comprising: a water tank for storing water, A first temperature sensor is provided in the water tank and is used to test the temperature of the water in the water tank. a heater, the heater being arranged in the water tank and capable of heating the water in the water tank, a water pipe, the water pipe being connected to the water tank and the storage box, and being used to transport water in the water tank to the storage box; a loading module, wherein the loading module is capable of applying a rolling load to the asphalt mixture; The data acquisition and analysis module can collect the water damage resistance data of the asphalt mixture in real time and analyze the water damage resistance of the asphalt mixture.
2. The asphalt mixture water damage resistance testing equipment according to claim 1, characterized in that: The water damage simulation module further includes a display screen, which is electrically connected to the temperature sensor and the heater. The display screen can display data collected by the first temperature sensor and has a touch screen operation function to change the state of the heater.
3. The asphalt mixture water damage resistance testing equipment according to claim 2, characterized in that: The water damage simulation module further includes a thermostat, which is electrically connected to the heater and the display screen respectively.
4. The asphalt mixture water damage resistance testing equipment according to claim 2, characterized in that: The water damage simulation module further includes an operation button capable of changing a state of the heater.
5. The asphalt mixture water damage resistance testing equipment according to claim 1, characterized in that: The water damage simulation module further includes a water pump and a plurality of nozzles. The water pump can increase the water pressure in the water pipe. The nozzles are connected to the ends of the water pipe and are used to spray water onto the asphalt mixture.
6. The asphalt mixture water damage resistance testing equipment according to claim 1, characterized in that: The water damage simulation module further includes a second temperature sensor, which is disposed in the storage box and is used to test the temperature of water in the storage box.
7. The asphalt mixture water damage resistance testing equipment according to claim 1, characterized in that: The loading module includes: a plurality of rollers, wherein the plurality of rollers are capable of rolling on the surface of the asphalt mixture and applying a load to the asphalt mixture; a telescopic rod, wherein the plurality of rollers are connected to a telescopic portion of the telescopic rod; A first driving mechanism is configured to drive the telescopic rod to extend or shorten.
8. The asphalt mixture water damage resistance testing equipment according to claim 1, characterized in that: The asphalt mixture water damage resistance testing equipment also includes a sample placement module, which includes a sample table and a second driving mechanism. The sample placement module is arranged in the storage box. The sample table is used to place the asphalt mixture. The second driving mechanism can apply a vertical force to the sample table to make the sample table rise or fall.
9. The asphalt mixture water damage resistance testing equipment according to claim 1, characterized in that: The asphalt mixture water damage resistance testing equipment also includes a third driving mechanism, which can apply a force in a vertical direction to the loading module to enable the loading module to rise or fall.
10. The asphalt mixture water damage resistance testing equipment according to claim 1, characterized in that: The material of the storage box is transparent.