Device and method for testing temperature loss rate of asphalt concrete panel in strong wind environment
By designing the temperature dispersion rate test device for asphalt concrete panels in high wind environments, including simulation tests and in-situ testing devices, the problem that the existing technology cannot effectively test the impact of the high wind environment on the temperature dispersion of asphalt concrete is solved, and the accurate measurement of the temperature dispersion rate of asphalt concrete and effective support for temperature control and crack prevention technology is achieved.
Patent Information
- Application Number
- CN202411865821.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-18
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2044-12-18
AI Technical Summary
The existing technology lacks effective testing equipment and methods, and cannot fully understand the impact of strong wind environment on the temperature loss of asphalt concrete, resulting in asphalt concrete being prone to cracks or cracks in the early age, affecting paving quality and service life.
A temperature dissipation rate test device for asphalt concrete panels in high wind environments is designed, including a simulation test device and an in-situ test device. The simulation test device simulates a strong wind environment and measures the temperature dissipation rate through components such as simulation boxes, temperature compensators, adjustable hair dryers and temperature sensors. The in-situ test device is equipped with temperature sensors and wind speed measuring devices on site to monitor and test the temperature dispersion rate of asphalt concrete panels in real time.
Through this test device, the temperature dissipation rate of asphalt concrete in strong wind environments can be accurately understood, effective temperature control and crack prevention technical support can be provided, and the paving quality and service life of asphalt concrete can be improved.
Smart Images

Figure CN119688778A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of temperature dissipation rate testing, and in particular relates to a device and method for testing the temperature dissipation rate of an asphalt concrete panel in a strong wind environment. Background Art
[0002] After pouring asphalt concrete, a large amount of hydration heat is generated, which causes the temperature of asphalt concrete to rise. Since the elastic modulus of early-age concrete is smaller than that of late-age concrete, concrete is prone to cracks or cracks during the temperature drop process. Effective measures to control the temperature of early-age concrete are the focus of temperature control and crack prevention of asphalt concrete. In a strong wind environment, asphalt concrete will be affected in many ways. The temperature of asphalt concrete will decrease. Strong winds will accelerate the heat loss of the surface layer of asphalt concrete, causing the temperature to drop rapidly, which will affect the paving quality and compaction effect of asphalt concrete, because the temperature of asphalt mixture has an important influence on its performance. Under the action of wind, the cooling rate of the surface layer of asphalt concrete may be much faster than that of the interior, resulting in a large temperature difference between the surface and the interior. This temperature difference may cause defects such as cracks and hollowing, affecting the durability and service life of the road surface. At present, there is a lack of asphalt concrete panel temperature loss rate test equipment and test methods that fully understand the impact of strong wind environment on the temperature loss of asphalt concrete. Summary of the invention
[0003] The technical problem to be solved by the present invention is to provide a device for testing the temperature loss rate of asphalt concrete panels under strong wind conditions in response to the deficiencies in the above-mentioned prior art. The device has a novel and reasonable design and uses a simulation test device to determine the temperature loss rate calculation model, which facilitates the in-situ test device to fully understand the impact of strong wind environments on the temperature loss of asphalt concrete, providing effective technical support for temperature control and crack prevention of asphalt concrete, and facilitating its popularization and use.
[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: a device for testing the temperature loss rate of asphalt concrete panels under strong wind environment, characterized in that: it includes a simulation test device and an in-situ test device, the simulation test device includes a simulation box, a temperature compensator is arranged at the bottom of the simulation box, a mold for forming an asphalt concrete test block is arranged on the upper side of the temperature compensator, a plurality of first temperature sensors at different heights are embedded in the mold, a first control box and a first wind speed measuring device and a second temperature sensor both connected to the first control box are installed on the top of the simulation box, an adjustable hair dryer connected to the simulation box and with adjustable wind speed and wind temperature is arranged on the side of the upper part of the simulation box; the upper part of the simulation box is a transparent hollow structure;
[0005] The in-situ testing device includes an in-situ testing frame arranged on the upper side of an asphalt concrete panel in which a plurality of third temperature sensors located at different heights are embedded. The in-situ testing frame is installed with a second control box and a second wind speed measuring device and a fourth temperature sensor both connected to the second control box.
[0006] The above-mentioned device for testing the temperature dissipation rate of asphalt concrete panels in a strong wind environment is characterized in that a suction cup is provided at the contact position between the bottom of the in-situ test frame and the asphalt concrete panel, and the suction cup is a rubber suction cup.
[0007] The above-mentioned device for testing the temperature dissipation rate of asphalt concrete panels in a strong wind environment is characterized in that the size of the asphalt concrete test block is 300mm×300mm×100mm.
[0008] The above-mentioned asphalt concrete panel temperature dissipation rate testing device under strong wind environment is characterized in that: the first control box includes a first shell and a first electronic circuit board arranged in the first shell, the first electronic circuit board is integrated with a first microcontroller, and the signal output ends of the first temperature sensor, the first wind speed meter and the second temperature sensor are all connected to the signal input end of the first microcontroller.
[0009] The above-mentioned asphalt concrete panel temperature dissipation rate testing device under strong wind environment is characterized in that: the second control box includes a second shell and a second electronic circuit board arranged in the second shell, the second electronic circuit board is integrated with a second microcontroller, the second shell is fixed on the in-situ test frame, the fourth temperature sensor is installed on the second shell, and the signal output ends of the third temperature sensor, the fourth temperature sensor and the second wind speed meter are all connected to the signal input end of the second microcontroller.
[0010] The above-mentioned device for testing the temperature dissipation rate of asphalt concrete panels in a strong wind environment is characterized in that: there are multiple in-situ testing devices for testing the temperature dissipation rate at different positions of the asphalt concrete panel.
[0011] At the same time, the present invention also discloses a method for testing the temperature loss rate of an asphalt concrete panel under a strong wind environment, which is characterized in that the method comprises the following steps:
[0012] Step 1: Casting an asphalt concrete test block: Casting an asphalt concrete test block in a mold according to the type of asphalt concrete required at the construction site, wherein a plurality of first temperature sensors located at different heights are pre-embedded in the asphalt concrete test block;
[0013] Step 2: Adjust the temperature compensator: Use the temperature compensator to perform temperature compensation on the asphalt concrete test block poured in the mold;
[0014] Step 3: Set the wind speed and wind temperature of the adjustable hair dryer to simulate a strong wind environment;
[0015] Step 4: Collect multiple groups of key parameters during the asphalt concrete test block molding process: each group of key parameters includes the height of the first temperature sensor, the concrete hydration heat dissipation temperature at the height position collected by the first temperature sensor, the external ambient temperature collected by the second temperature sensor, and the ambient wind speed collected by the first wind speed meter;
[0016] Step 5, adjusting the wind speed and wind temperature of the adjustable hair dryer to simulate a strong wind environment when the wind speed and wind temperature change, and executing steps 1 to 4 to collect multiple sets of key parameters in the asphalt concrete test block molding process when the wind speed and wind temperature change;
[0017] Step 6: Repeat step 5 multiple times to obtain multiple sets of key parameters in the asphalt concrete test block molding process under various wind speed and wind temperature conditions;
[0018] Step 7, using multiple sets of key parameters in the asphalt concrete test block molding process under multiple wind speed and wind temperature conditions to fit the temperature loss rate calculation model of the asphalt concrete type required at the construction site, and inputting the temperature loss rate calculation model of the asphalt concrete type required at the construction site into the second microcontroller in the second control box;
[0019] Step 8: Casting the asphalt concrete panel on site and pre-embedding a plurality of third temperature sensors at different heights;
[0020] Step nine, use the in-situ test device to test the temperature dissipation rate of the asphalt concrete panel under the strong wind environment on site: use the third temperature sensor to collect the concrete hydration heat dissipation temperature at the height of the on-site asphalt concrete, use the fourth temperature sensor to collect the external environment temperature, use the second wind speed meter to collect the on-site environment wind speed, the height of the third temperature sensor, the temperature data collected by the third temperature sensor, the temperature data collected by the fourth temperature sensor and the wind speed data collected by the second wind speed meter constitute the on-site key parameters of the asphalt concrete panel, input the on-site key parameters of the asphalt concrete panel into the second microcontroller, and the second microcontroller uses the temperature loss rate calculation model of the asphalt concrete type required at the construction site to obtain the temperature dissipation rate of the asphalt concrete panel under the strong wind environment on site.
[0021] The above method for testing the temperature loss rate of asphalt concrete panels under a strong wind environment is characterized in that: in step 2, according to the formula ΔT=T 实际 -T 模拟 , adjust the temperature compensator and calculate the operating temperature ΔT of the temperature compensator, where T 实际 The concrete hydration heat dissipation temperature of the asphalt concrete panel of the corresponding thickness obtained for the construction of the asphalt concrete type required on site, T 模拟It is the heat dissipation temperature of concrete hydration heat generated by pouring the asphalt concrete test block in the mold in step one.
[0022] The above-mentioned method for testing the temperature loss rate of asphalt concrete panels under a strong wind environment is characterized in that: in step 7, the temperature loss rate calculation model of the asphalt concrete type required at the construction site is Where H is the height of concrete, is the temperature loss rate at the concrete height H, V is the wind speed, n is the wind speed influence coefficient, T surf,approx is the heat dissipation temperature of concrete hydration at the concrete height H, T amb is the ambient temperature, a is the first fitting coefficient, and b is the second fitting coefficient.
[0023] Compared with the prior art, the present invention has the following advantages:
[0024] 1. The present invention uses a temperature compensator in a simulation test device to perform temperature compensation on an asphalt concrete test block cast in a mold. The concrete hydration heat dissipation temperature at the height position collected by the first temperature sensor, the external environmental temperature collected by the second temperature sensor, and the ambient wind speed collected by the first wind speed meter lay a data foundation for fitting a temperature dissipation rate calculation model; the concrete hydration heat dissipation temperature at the height position of the on-site asphalt concrete is collected by the third temperature sensor in the in-situ test device, the external environmental temperature is collected by the fourth temperature sensor, and the on-site ambient wind speed is collected by the second wind speed meter. The height of the third temperature sensor, the temperature data collected by the third temperature sensor, the temperature data collected by the fourth temperature sensor, and the wind speed data collected by the second wind speed meter constitute the on-site key parameters of the asphalt concrete panel. The on-site key parameters of the asphalt concrete panel are input into the second microcontroller. The second microcontroller uses the temperature dissipation rate calculation model of the asphalt concrete type required at the construction site to obtain the temperature dissipation rate of the asphalt concrete panel under the on-site strong wind environment, which is convenient for promotion and use.
[0025] 2. The device used in the present invention has the advantages of simple structure, easy installation, low cost, accurate measurement, etc. It can fully understand the impact of strong wind environment on the temperature loss of asphalt concrete and provide effective technical support for temperature control and crack prevention of asphalt concrete.
[0026] 3. The method adopted by the present invention has simple steps and establishes a relationship curve between the data obtained from the in-situ test and the simulation device test based on the three elements of temperature, rate and depth, thereby verifying the reliability of the equipment and facilitating its popularization and use.
[0027] In summary, the present invention is novel and reasonable in design, and uses a simulation test device to determine the temperature dissipation rate calculation model, which is convenient for the in-situ test device to fully understand the impact of strong wind environment on the temperature dissipation of asphalt concrete, and provide effective technical support for temperature control and crack prevention of asphalt concrete, which is convenient for promotion and use.
[0028] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] Figure 1 It is a structural schematic diagram of the simulation test device of the present invention.
[0030] Figure 2 It is a structural schematic diagram of the in-situ testing device of the present invention.
[0031] Figure 3 The figure is a schematic curve diagram showing the relationship among wind speed, concrete depth and temperature loss rate according to the present invention.
[0032] Figure 4 It is a flowchart of the method of the present invention.
[0033] Description of reference numerals:
[0034] 1—Simulation box; 2—Temperature compensator; 3—Asphalt concrete test block;
[0035] 4—first temperature sensor; 5—first control box; 6—first wind speed measuring device;
[0036] 7—adjustable hair dryer; 8—second temperature sensor; 9—third temperature sensor;
[0037] 10—in-situ test stand; 11—suction cup; 12—second wind speed measuring device;
[0038] 13—second control box; 14—fourth temperature sensor; 15—asphalt concrete panel. DETAILED DESCRIPTION
[0039] like Figure 1 and Figure 2As shown, the temperature dissipation rate test device for asphalt concrete panels under strong wind environment of the present invention comprises a simulation test device and an in-situ test device, wherein the simulation test device comprises a simulation box 1, a temperature compensator 2 is arranged at the bottom of the simulation box 1, a mold for forming an asphalt concrete test block 3 is arranged on the upper side of the temperature compensator 2, a plurality of first temperature sensors 4 at different heights are embedded in the mold, a first control box 5 and a first wind speed measuring device 6 and a second temperature sensor 8 both connected to the first control box 5 are installed on the top of the simulation box 1, an adjustable hair dryer 7 connected to the simulation box 1 and with adjustable wind speed and wind temperature is arranged on the side of the upper part of the simulation box 1; the upper part of the simulation box 1 is a transparent hollow structure;
[0040] The in-situ testing device includes an in-situ testing frame 10 arranged on the upper side of an asphalt concrete panel 15 in which a plurality of third temperature sensors 9 located at different heights are pre-embedded, and a second control box 13 and a second wind speed measuring device 12 and a fourth temperature sensor 14 both connected to the second control box 13 are installed on the in-situ testing frame 10.
[0041] In this embodiment, a suction cup 11 is provided at the bottom of the in-situ test frame 10 at the position in contact with the asphalt concrete panel 15 , and the suction cup 11 is a rubber suction cup.
[0042] In this embodiment, the size of the asphalt concrete test block 3 is 300 mm×300 mm×100 mm.
[0043] In this embodiment, the first control box 5 includes a first shell and a first electronic circuit board arranged in the first shell, the first electronic circuit board is integrated with a first microcontroller, and the signal output ends of the first temperature sensor 4, the first wind speed meter 6 and the second temperature sensor 8 are all connected to the signal input end of the first microcontroller.
[0044] In this embodiment, the second control box 13 includes a second shell and a second electronic circuit board arranged in the second shell, a second microcontroller is integrated on the second electronic circuit board, the second shell is fixed on the in-situ test frame 10, the fourth temperature sensor 14 is installed on the second shell, and the signal output ends of the third temperature sensor 9, the fourth temperature sensor 14 and the second wind speed meter 12 are all connected to the signal input end of the second microcontroller.
[0045] In this embodiment, there are multiple in-situ testing devices for testing the temperature dissipation rate at different positions of the asphalt concrete panel 15 .
[0046] It should be noted that, by using a temperature compensator in the simulation test device to perform temperature compensation on the asphalt concrete test block cast in the mold, the concrete hydration heat dissipation temperature at the height position collected by the first temperature sensor, the external environmental temperature collected by the second temperature sensor and the ambient wind speed collected by the first wind speed meter lay a data foundation for fitting the temperature dissipation rate calculation model; the concrete hydration heat dissipation temperature at the height position of the on-site asphalt concrete is collected by the third temperature sensor in the in-situ test device, the external environmental temperature is collected by the fourth temperature sensor, and the on-site ambient wind speed is collected by the second wind speed meter. The height of the third temperature sensor, the temperature data collected by the third temperature sensor, the temperature data collected by the fourth temperature sensor and the wind speed data collected by the second wind speed meter constitute the on-site key parameters of the asphalt concrete panel. The on-site key parameters of the asphalt concrete panel are input into the second microcontroller. The second microcontroller uses the temperature loss rate calculation model of the asphalt concrete type required at the construction site to obtain the temperature loss rate of the asphalt concrete panel under the on-site strong wind environment. The device has the advantages of simple structure, convenient installation, low cost, accurate measurement, etc., can fully understand the influence of strong wind environment on the temperature loss of asphalt concrete, and provide effective technical support for temperature control and crack prevention of asphalt concrete.
[0047] like Figure 3 and Figure 4 A method for testing the temperature loss rate of an asphalt concrete panel in a strong wind environment is shown, the method comprising the following steps:
[0048] Step 1: Casting an asphalt concrete test block: Casting an asphalt concrete test block 3 in a mold according to the type of asphalt concrete required at the construction site, wherein a plurality of first temperature sensors 4 located at different heights are pre-embedded in the asphalt concrete test block 3;
[0049] Step 2: Adjust the temperature compensator: Use the temperature compensator 2 to perform temperature compensation on the asphalt concrete test block 3 poured in the mold;
[0050] Step 3: Set the wind speed and wind temperature of the adjustable hair dryer to simulate a strong wind environment;
[0051] Step 4: Collect multiple groups of key parameters during the asphalt concrete test block molding process: each group of key parameters includes the height of the first temperature sensor 4, the concrete hydration heat dissipation temperature at the height position collected by the first temperature sensor 4, the external ambient temperature collected by the second temperature sensor 8, and the ambient wind speed collected by the first wind speed measuring device 6;
[0052] Step 5, adjusting the wind speed and wind temperature of the adjustable hair dryer to simulate a strong wind environment when the wind speed and wind temperature change, and executing steps 1 to 4 to collect multiple sets of key parameters in the asphalt concrete test block molding process when the wind speed and wind temperature change;
[0053] Step 6: Repeat step 5 multiple times to obtain multiple sets of key parameters in the asphalt concrete test block molding process under various wind speed and wind temperature conditions;
[0054] Step 7, using multiple sets of key parameters in the asphalt concrete test block molding process under multiple wind speed and wind temperature conditions to fit the temperature loss rate calculation model of the asphalt concrete type required at the construction site, and input the temperature loss rate calculation model of the asphalt concrete type required at the construction site into the second microcontroller in the second control box 13;
[0055] Step 8: Casting the asphalt concrete panel on site and pre-embedding a plurality of third temperature sensors at different heights;
[0056] Step nine, use the in-situ test device to test the temperature dissipation rate of the asphalt concrete panel under the strong wind environment on site: use the third temperature sensor 9 to collect the concrete hydration heat dissipation temperature at the height of the on-site asphalt concrete, use the fourth temperature sensor 14 to collect the external environment temperature, use the second wind speed meter 12 to collect the on-site environment wind speed, the height of the third temperature sensor 9, the temperature data collected by the third temperature sensor 9, the temperature data collected by the fourth temperature sensor 14 and the wind speed data collected by the second wind speed meter 12 constitute the on-site key parameters of the asphalt concrete panel, the on-site key parameters of the asphalt concrete panel are input into the second microcontroller, and the second microcontroller uses the temperature loss rate calculation model of the asphalt concrete type required at the construction site to obtain the temperature loss rate of the asphalt concrete panel under the strong wind environment on site.
[0057] In this embodiment, in step 2, according to the formula ΔT=T 实际 -T 模拟 , adjust the temperature compensator 2, and calculate the operating temperature ΔT of the temperature compensator 2, where T 实际 The concrete hydration heat dissipation temperature, T, of the asphalt concrete panel 15 of the corresponding thickness obtained for the construction of the asphalt concrete type required on site is 模拟 It is the heat dissipation temperature of concrete hydration heat pre-generated by pouring the asphalt concrete test block 3 in the mold in step one.
[0058] In this embodiment, in step 7, the temperature loss rate calculation model of the asphalt concrete type required at the construction site is: Where H is the height of concrete, is the temperature loss rate at the concrete height H, V is the wind speed, n is the wind speed influence coefficient, T surf,approx is the heat dissipation temperature of concrete hydration at the concrete height H, T amb is the ambient temperature, a is the first fitting coefficient, and b is the second fitting coefficient.
[0059] In this embodiment, the wind speed influence coefficient n is 0.5, the wind speed is 5m / s and 10m / s, the concrete height H is 0.05m, and the concrete hydration heat dissipation temperature T at the concrete height H is surf,approx Take 160℃, ambient temperature T amb When the temperature is 25℃ and the wind speed is 5m / s, When the wind speed is 10m / s,
[0060] like Figure 3 As shown in the figure, as the measurement depth increases, the temperature change rate increases, but the decrease in the temperature change rate decreases, and the temperature change rate decreases as the test wind speed increases.
[0061] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent structural change made to the above embodiment based on the technical essence of the present invention still falls within the protection scope of the technical solution of the present invention.
Claims
1. Asphalt concrete panel temperature loss rate test device under strong wind environment, characterized by: The invention comprises a simulation test device and an in-situ test device, wherein the simulation test device comprises a simulation box (1), a temperature compensator (2) is arranged at the bottom of the simulation box (1), a mold for forming an asphalt concrete test block (3) is arranged on the upper side of the temperature compensator (2), a plurality of first temperature sensors (4) located at different heights are pre-buried in the mold, a first control box (5) and a first wind speed measuring device (6) and a second temperature sensor (8) both connected to the first control box (5) are installed on the top of the simulation box (1), and an adjustable hair dryer (7) connected to the simulation box (1) and having adjustable wind speed and wind temperature is arranged on the side of the upper part of the simulation box (1); the upper part of the simulation box (1) is a transparent hollow structure; The in-situ test device comprises an in-situ test frame (10) arranged on the upper side of an asphalt concrete panel (15) pre-buried with a plurality of third temperature sensors (9) located at different heights, and a second control box (13) and a second wind speed measuring device (12) and a fourth temperature sensor (14) both connected to the second control box (13) are installed on the in-situ test frame (10).
2. The device for testing the temperature loss rate of asphalt concrete panels in a strong wind environment according to claim 1, characterized in that: A suction cup (11) is provided at the bottom of the in-situ test frame (10) at a position in contact with the asphalt concrete panel (15), and the suction cup (11) is a rubber suction cup.
3. The device for testing the temperature loss rate of asphalt concrete panels in a strong wind environment according to claim 1, characterized in that: The size of the asphalt concrete test block (3) is 300 mm×300 mm×100 mm.
4. The device for testing the temperature loss rate of asphalt concrete panels in a strong wind environment according to claim 1, characterized in that: The first control box (5) comprises a first shell and a first electronic circuit board arranged in the first shell, a first microcontroller is integrated on the first electronic circuit board, and signal output ends of the first temperature sensor (4), the first wind speed measuring device (6) and the second temperature sensor (8) are all connected to the signal input end of the first microcontroller.
5. The device for testing the temperature loss rate of asphalt concrete panels in a strong wind environment according to claim 1, characterized in that: The second control box (13) comprises a second shell and a second electronic circuit board arranged in the second shell, a second microcontroller is integrated on the second electronic circuit board, the second shell is fixed on the in-situ test frame (10), the fourth temperature sensor (14) is installed on the second shell, and the signal output ends of the third temperature sensor (9), the fourth temperature sensor (14) and the second wind speed measuring device (12) are all connected to the signal input end of the second microcontroller.
6. The device for testing the temperature loss rate of asphalt concrete panels in a strong wind environment according to claim 1, characterized in that: There are multiple in-situ testing devices, which are used to test the temperature loss rate at different positions of the asphalt concrete panel (15).
7. A method for testing the temperature loss rate of asphalt concrete panels in a strong wind environment using the device as claimed in claim 1, characterized in that: The method comprises the following steps: Step 1: Casting an asphalt concrete test block: casting an asphalt concrete test block (3) in a mold according to the type of asphalt concrete required at the construction site, wherein a plurality of first temperature sensors (4) located at different heights are pre-buried in the asphalt concrete test block (3); Step 2: Adjusting the temperature compensator: Using the temperature compensator (2) to perform temperature compensation on the asphalt concrete test block (3) cast in the mold; Step 3: Set the wind speed and wind temperature of the adjustable hair dryer to simulate a strong wind environment; Step 4: collecting multiple groups of key parameters during the asphalt concrete test block molding process: each group of key parameters includes the height of the first temperature sensor (4), the concrete hydration heat dissipation temperature at the height position collected by the first temperature sensor (4), the external environment temperature collected by the second temperature sensor (8), and the environment wind speed collected by the first wind speed measuring device (6); Step 5, adjusting the wind speed and wind temperature of the adjustable hair dryer to simulate a strong wind environment when the wind speed and wind temperature change, and executing steps 1 to 4 to collect multiple sets of key parameters in the asphalt concrete test block molding process when the wind speed and wind temperature change; Step 6: Repeat step 5 multiple times to obtain multiple sets of key parameters in the asphalt concrete test block molding process under various wind speed and wind temperature conditions; Step 7, using multiple sets of key parameters in the asphalt concrete test block molding process under multiple wind speed and wind temperature conditions to fit the temperature loss rate calculation model of the asphalt concrete type required at the construction site, and inputting the temperature loss rate calculation model of the asphalt concrete type required at the construction site into the second microcontroller in the second control box (13); Step 8: Casting the asphalt concrete panel on site and pre-embedding a plurality of third temperature sensors at different heights; Step nine, using an in-situ testing device to test the temperature dissipation rate of the asphalt concrete panel under a strong wind environment on site: using a third temperature sensor (9) to collect the concrete hydration heat dissipation temperature at the height of the on-site asphalt concrete, using a fourth temperature sensor (14) to collect the external environment temperature, using a second wind speed measuring device (12) to collect the on-site environment wind speed, the height of the third temperature sensor (9), the temperature data collected by the third temperature sensor (9), the temperature data collected by the fourth temperature sensor (14) and the wind speed data collected by the second wind speed measuring device (12) constitute the on-site key parameters of the asphalt concrete panel, the on-site key parameters of the asphalt concrete panel are input into the second microcontroller, and the second microcontroller uses a temperature dissipation rate calculation model of the asphalt concrete type required at the construction site to obtain the temperature dissipation rate of the asphalt concrete panel under the strong wind environment on site.
8. The method for testing the temperature loss rate of asphalt concrete panels in a strong wind environment according to claim 7, characterized in that: In step 2, according to the formula ΔT = T 实际 -T 模拟 , adjust the temperature compensator (2), calculate the operating temperature ΔT of the temperature compensator (2), where T 实际 The pre-generated concrete hydration heat dissipation temperature of the asphalt concrete panel (15) of the corresponding thickness obtained for the construction of the asphalt concrete type required on site, T 模拟 The concrete hydration heat dissipation temperature pre-generated by pouring the asphalt concrete test block (3) in the mold in step 1.
9. The method for testing the temperature loss rate of asphalt concrete panels in a strong wind environment according to claim 7, characterized in that: In step 7, the temperature loss rate calculation model of the asphalt concrete type required at the construction site is: Where H is the height of concrete, is the temperature loss rate at the concrete height H, V is the wind speed, n is the wind speed influence coefficient, T surf,approx is the heat dissipation temperature of concrete hydration at the concrete height H, T amb is the ambient temperature, a is the first fitting coefficient, and b is the second fitting coefficient.
Citation Information
Patent Citations
Simulation test method of temperature field of asphalt concrete pavement
CN107505064A
Testing equipment and testing method for adiabatic temperature rise of fully-graded concrete under different pouring temperatures
CN108254402A
Testing device and method for measuring surface heat dissipation coefficient of concrete thin-wall structure
CN116718635A
Porous asphalt concrete intelligence survey device that disperses
CN208206978U
Recycled concrete shrinkage test device
CN214894966U