A microwave performance improvement system based on activated crumb rubber modified asphalt material

Abstract

The present invention relates to the technical field of material performance detection, and particularly to a microwave performance improvement system based on activated crumb rubber modified asphalt materials. The system includes a microwave irradiation condition design module, a performance detection and heat generation analysis module, a material microscopic influence evaluation module, and a material microwave performance improvement module. It can obtain different microwave irradiation powers and nano-zinc oxide compounding ratios, design microwave irradiation conditions, and detect microwave performance parameters to obtain microwave reflection coefficients, microwave transmission coefficients, and microwave absorption coefficients. By monitoring the microwave heat generation uniformity index in real time, analyzing the microscopic structure characteristics, and evaluating the influence on microwave performance, the corresponding material microscopic performance influence factors can be obtained. The microwave performance evaluation calculation and adaptive optimization adjustment are carried out on the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient to generate a microwave performance improvement adjustment strategy corresponding to the modified asphalt material. The present invention can improve the microwave performance of the modified asphalt material.

Description

Technical Field

[0001] The present invention relates to the technical field of material property detection, and particularly to a microwave performance improvement system for activated rubber powder modified asphalt materials. Background Art

[0002] With the rapid development of road construction and transportation industry, as an important material for road paving, the improvement of the performance of asphalt materials has a crucial impact on the service life, durability and driving comfort of roads. The traditional modification methods of asphalt materials mainly include adding rubber, polymers, mineral powder, etc. to improve their crack resistance, anti-aging property and temperature adaptability. In recent years, activated rubber powder, as a new type of modification additive, has attracted wide attention in the modification of asphalt materials. The activated rubber powder is activated by physical or chemical methods, enhancing its compatibility and dispersibility with asphalt, and then improving the mechanical properties and anti-aging properties of asphalt. Although activated rubber powder has certain advantages in improving the performance of asphalt, however, in the processing of asphalt materials, the microwave permeability is poor, especially in traditional modified asphalt, the dispersion of activated rubber powder is uneven, resulting in an unsatisfactory microwave heating effect and it is difficult to fully play its advantages. Therefore, how to improve the microwave performance of activated rubber powder modified asphalt materials has become an urgent technical problem to be solved. Summary of the Invention

[0003] Based on this, it is necessary for the present invention to provide a microwave performance improvement system for activated rubber powder modified asphalt materials to solve at least one of the above technical problems.

[0004] To achieve the above object, a microwave performance improvement system for activated rubber powder modified asphalt materials includes the following modules:

[0005] A microwave irradiation condition design module, configured to obtain different microwave irradiation powers and nano-zinc oxide compounding ratios and design microwave irradiation conditions to generate different combinations of microwave irradiation process conditions;

[0006] A performance detection and heat generation analysis module, configured to detect microwave performance parameters of the activated rubber powder modified asphalt materials based on different combinations of microwave irradiation process conditions to obtain the corresponding microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient under different microwave irradiation conditions; analyze the corresponding microwave heating uniformity index during the microwave irradiation process by combining with an infrared thermal imager;

[0007] The material micro-influence evaluation module is used to analyze the microstructural characteristics of the activated rubber powder modified asphalt material based on different microwave irradiation conditions to obtain the corresponding microstructural characteristics under different microwave irradiation conditions; and to evaluate the influence of microwave performance on the activated rubber powder modified asphalt material based on the corresponding microstructural characteristics under different microwave irradiation conditions to obtain the corresponding material micro-performance influence factors under different microwave irradiation conditions.

[0008] The material microwave performance improvement module is used to perform microwave performance evaluation calculations on the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient based on the microwave heating uniformity index and the material micro-performance influence factors to obtain the corresponding modified asphalt material microwave performance scores at each time point; to obtain the corresponding microwave irradiation time interval and combine it with the modified asphalt material microwave performance scores to adaptively optimize and adjust the microwave irradiation process conditions to generate the corresponding microwave performance improvement adjustment strategy for the modified asphalt material.

[0009] Furthermore, the microwave irradiation condition design module includes the following functions:

[0010] Obtain different microwave irradiation powers, including 600W, 800W, and 1200W;

[0011] Obtain different nano-zinc oxide compounding ratios, including 1%, 3%, and 5%;

[0012] Design microwave irradiation conditions according to different microwave irradiation powers and nano-zinc oxide compounding ratios to generate different combinations of microwave irradiation process conditions.

[0013] Furthermore, the performance detection and heating analysis module includes the following functions:

[0014] Based on the nano-zinc oxide compounding ratios within different combinations of microwave irradiation process conditions, perform irradiation condition compounding on the activated rubber powder modified asphalt material to obtain the corresponding modified asphalt material compounded samples under different microwave irradiation conditions;

[0015] According to the microwave irradiation power within different combinations of microwave irradiation process conditions, perform microwave field simulation on the corresponding modified asphalt material compounded samples under the corresponding microwave irradiation conditions to simulate the propagation and action process of microwaves in the modified asphalt material compounded samples, and generate the corresponding modified asphalt material microwave simulation fields under different microwave irradiation conditions;

[0016] Perform microwave distribution statistical analysis on the corresponding modified asphalt material microwave simulation fields under different microwave irradiation conditions to obtain the corresponding electric field reflection intensity distribution, magnetic field transmission intensity distribution, and energy absorption distribution under different microwave irradiation conditions;

[0017] Detect the microwave performance parameters of the corresponding electric field reflection intensity distribution, magnetic field transmission intensity distribution, and energy absorption distribution under different microwave irradiation conditions to obtain the corresponding microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient under different microwave irradiation conditions;

[0018] Combined with an infrared thermal imager, analyze the corresponding microwave heating uniformity index of the activated rubber powder modified asphalt material during microwave irradiation in real time.

[0019] Furthermore, the irradiation condition compounding of the activated rubber powder modified asphalt material based on the compounding ratio of nano-zinc oxide under different combined microwave irradiation process conditions includes:

[0020] Based on different combined microwave irradiation process conditions, evenly disperse the corresponding compounding ratio of nano-zinc oxide on the activated rubber powder modified asphalt material to form a corresponding conductive network, so as to enhance the absorption and loss of the activated rubber powder modified asphalt material corresponding to the microwave irradiation power;

[0021] Based on the corresponding conductive network, perform compounding stirring on the activated rubber powder modified asphalt material under the microwave irradiation power in different combined microwave irradiation process conditions, so as to significantly increase the softening point of the activated rubber powder modified asphalt material by using nano-zinc oxide to obtain the compounded sample of the modified asphalt material corresponding to different microwave irradiation conditions.

[0022] Furthermore, the analysis of the corresponding microwave heating uniformity index of the activated rubber powder modified asphalt material during microwave irradiation by combining with an infrared thermal imager includes:

[0023] Combined with an infrared thermal imager, monitor the corresponding temperature distribution of the activated rubber powder modified asphalt material during microwave irradiation in real time;

[0024] Perform mean and standard deviation statistical analysis on the corresponding temperature distribution of the activated rubber powder modified asphalt material during microwave irradiation to obtain the corresponding temperature mean and temperature standard deviation of the asphalt material during microwave irradiation;

[0025] Based on the corresponding temperature mean and temperature standard deviation of the asphalt material during microwave irradiation, perform heating uniformity quantification calculation on the corresponding temperature distribution of the activated rubber powder modified asphalt material during microwave irradiation to obtain the microwave heating uniformity index.

[0026] Furthermore, the material microscopic influence evaluation module includes the following functions:

[0027] Based on different microwave irradiation conditions and using a transmission electron microscope to observe the microscopic structure of the activated rubber powder modified asphalt material, obtain the microscopic structure of the asphalt material corresponding to different microwave irradiation conditions;

[0028] Analyze the microstructure characteristics of the asphalt material corresponding to different microwave irradiation conditions to obtain the microstructure characteristics corresponding to different microwave irradiation conditions;

[0029] Obtain the chemical crystal structure of the activated rubber powder modified asphalt material by combining with an X-ray diffractometer, and conduct chemical bond energy analysis on the activated rubber powder modified asphalt material corresponding to different microwave irradiation conditions to obtain the material chemical bond energy corresponding to different microwave irradiation conditions;

[0030] Based on the microstructure characteristics and material chemical bond energy corresponding to different microwave irradiation conditions, use the material microstructure performance influence calculation formula to evaluate the microwave performance influence of the corresponding activated rubber powder modified asphalt material, so as to obtain the material microstructure performance influence factor corresponding to different microwave irradiation conditions.

[0031] Furthermore, the analysis of the microstructure characteristics of the asphalt material corresponding to different microwave irradiation conditions includes:

[0032] Obtain the corresponding rubber powder dispersion state of the material through the microstructure of the asphalt material corresponding to different microwave irradiation conditions;

[0033] Based on the rubber powder dispersion state of the material, count the number of interfacial bonds between asphalt molecules in the microstructure of the asphalt material corresponding to different microwave irradiation conditions to obtain the number of interfacial bonds between asphalt molecules and rubber powder corresponding to different microwave irradiation conditions;

[0034] According to the number of interfacial bonds between asphalt molecules and rubber powder corresponding to different microwave irradiation conditions, conduct interfacial bond index analysis on the rubber powder and asphalt molecules in the microstructure of the asphalt material corresponding to different microwave irradiation conditions to obtain the interfacial bond index between asphalt molecules and rubber powder corresponding to different microwave irradiation conditions;

[0035] Take the number of interfacial bonds and the interfacial bond index between asphalt molecules and rubber powder corresponding to different microwave irradiation conditions as the corresponding microstructure characteristics to obtain the corresponding microstructure characteristics corresponding to different microwave irradiation conditions.

[0036] Furthermore, the specific formula of the material microstructure performance influence calculation formula is:

[0037] ;

[0038] In the formula, is the material microstructure performance influence factor, is the number of interfacial bonds between asphalt molecules and rubber powder, is the interfacial bond index between asphalt molecules and rubber powder, is the exponential function, is the chemical bond energy of the material, is the Boltzmann constant, is the temperature of the activated crumb rubber modified asphalt material corresponding to the corresponding microwave irradiation.

[0039] Furthermore, the material microwave performance improvement module includes the following functions:

[0040] By assigning corresponding weights to the corresponding microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient, and based on the microwave heating uniformity index and the material microstructure performance influence factor, using the material microwave performance calculation formula to perform microwave performance evaluation and calculation on the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient at each microwave irradiation time point, so as to obtain the corresponding microwave performance score of the modified asphalt material at each time point;

[0041] Obtain the corresponding microwave irradiation time interval;

[0042] Based on the microwave irradiation time interval, analyze the change trend of the corresponding microwave performance score of the modified asphalt material at each time point, so as to obtain the change trend of the material microwave performance corresponding to the microwave irradiation time zone;

[0043] Based on the change trend of the material microwave performance corresponding to the microwave irradiation time zone, adaptively optimize and adjust the microwave irradiation process conditions. If the change trend of the material microwave performance shows a downward trend over time, the microwave irradiation power corresponding to the microwave irradiation process conditions and the compounding ratio of the corresponding nano-zinc oxide can be automatically increased, otherwise no treatment is performed, so as to generate a corresponding microwave performance improvement adjustment strategy for the modified asphalt material.

[0044] Furthermore, the specific form of the material microwave performance calculation formula is:

[0045] ;

[0046] In the formula, is the microwave performance score of the modified asphalt material corresponding to the time point , is the microwave reflection coefficient corresponding to the time point , is the microwave reflection weight, is the microwave transmission coefficient corresponding to the time point , is the microwave transmission weight, is the microwave absorption coefficient corresponding to the time point , is the microwave absorption weight, is the material microstructure performance influence factor, is the microwave heating uniformity index.

[0047] Advantages of the present invention:

[0048] The microwave performance improvement system for the activated crumb rubber modified asphalt material proposed by the present invention is generally composed of a microwave irradiation condition design module, a performance detection and heat generation analysis module, a material microscopic influence evaluation module, and a material microwave performance improvement module. Compared with the prior art, the beneficial effect of this application lies in systematically optimizing the microwave irradiation conditions by setting the microwave irradiation of different frequencies and the compounding ratio of nano-zinc oxide, thereby providing a basis for subsequent experiments and analyses. The frequency of microwave irradiation and the ratio of nano-zinc oxide determine the microwave absorption performance of the material. Therefore, by accurately setting these parameters, the modified asphalt material can exhibit the best physical and chemical properties under microwave irradiation. Nano-zinc oxide, as a commonly used reinforcing agent, can improve the microwave absorption of the asphalt material, thereby affecting the modification effect of the asphalt. Different microwave irradiation powers will affect the molecular movement and heat conduction inside the material, thereby affecting its physical state and performance. Therefore, this step not only provides precise process conditions for the experiment, but also explores the best material modification scheme by optimizing the microwave irradiation frequency and compounding ratio, thereby providing effective data support for the subsequent steps. Secondly, through the detection of microwave performance parameters, comprehensively analyze the influence of different microwave irradiation conditions on the modified asphalt material. The microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient are important indicators reflecting the microwave radiation response of the material. They can reflect the energy absorption, propagation, and reflection of the material in the microwave field. By detecting these parameters, the microwave response characteristics of the material under different irradiation conditions can be comprehensively understood, thereby providing a scientific basis for further optimization of microwave performance. At the same time, combined with a thermal imager for real-time monitoring, it helps to analyze the uniformity of the heat distribution of the material during irradiation, and the thermal imager can provide real-time monitoring of the surface temperature change of the material, revealing the non-uniformity of the energy distribution during the microwave irradiation process, and then calculating the microwave heating uniformity index. A microwave heating process with good uniformity can effectively avoid local overheating or energy waste and improve the overall performance of the material. It can not only accurately evaluate the influence of microwave irradiation on the material, but also provide data support for the optimization of the microwave treatment process.Then, the microstructure of the activated rubber powder modified asphalt material is deeply analyzed by transmission electron microscopy (TEM) to evaluate the influence of microwave irradiation conditions on the internal structure changes of the material and its microwave performance. Transmission electron microscopy can provide high-resolution images of the internal structure of the material, enabling precise observation of microscopic features such as the particle morphology, interface structure, and lattice arrangement of the material. Under different microwave irradiation conditions, the microstructure of the material may change, thereby affecting its overall performance. By analyzing these microstructure features, it is possible to reveal how microwave irradiation conditions affect the structural stability, uniformity, and microphysical and chemical properties of the material, thus evaluating its impact on the material performance. The evaluation of the microwave performance influencing factors is carried out by combining the microstructure characteristics and analyzing their influence on the microwave absorption, reflection, transmission, and other properties of the material. This evaluation helps to identify the optimal microwave irradiation conditions and provides the basic data guarantee for subsequent improvement of microwave performance. Finally, through the comprehensive evaluation of the microwave heating uniformity index and the microscopic performance influencing factors, the microwave performance of the material is accurately calculated, and the process is optimized and adjusted in combination with the microwave performance score. The microwave performance score is a quantitative representation of the performance of the modified asphalt material under different microwave irradiation conditions. It can comprehensively consider factors such as the microwave absorption ability, thermal conductivity, and structural stability of the material, reflecting its overall performance during microwave irradiation. By calculating the microwave performance score at different time points in real time and combining the microwave irradiation time interval, the dynamic adjustment of the material performance can be achieved, thereby finding the optimal microwave irradiation conditions. At the same time, by adaptively optimizing and adjusting the microwave irradiation process conditions, the microwave performance of the activated rubber powder modified asphalt material can be continuously improved, thereby enhancing the use effect and reliability of the material. This optimization process can not only improve the microwave performance of the activated rubber powder modified asphalt material but also effectively improve production efficiency and reduce resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments read in conjunction with the accompanying drawings:

[0050] Figure 1 is a schematic diagram of the modules of the microwave performance improvement system based on the activated rubber powder modified asphalt material of the present invention;

[0051] Figure 2 is Figure 1 a schematic diagram of the functional flow of the microwave irradiation condition design module in;

[0052] Figure 3 is Figure 1 a schematic diagram of the functional flow of the performance detection and heating analysis module in. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0053] The technical system of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0054] In addition, the accompanying drawings are only schematic diagrams of the present invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus repeated descriptions thereof will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. The functional entities can be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor systems and / or microcontroller systems.

[0055] It should be understood that although the terms "first", "second", etc. may be used herein to describe various units, these units should not be limited by these terms. These terms are only used to distinguish one unit from another. For example, without departing from the scope of the exemplary embodiments, the first unit may be referred to as the second unit, and similarly the second unit may be referred to as the first unit. The term "and / or" used herein includes any and all combinations of one or more of the listed associated items.

[0056] To achieve the above object, please refer to Figures 1 to 3 , the present invention provides a microwave performance improvement system based on activated rubber powder modified asphalt material, and the system includes the following modules:

[0057] A microwave irradiation condition design module, which is used to obtain different microwave irradiation powers and nano-zinc oxide compounding ratios and design microwave irradiation conditions to generate different combinations of microwave irradiation process conditions;

[0058] A performance detection and heat generation analysis module, which is used to detect the microwave performance parameters of the activated rubber powder modified asphalt material based on different combinations of microwave irradiation process conditions to obtain the corresponding microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient under different microwave irradiation conditions; by combining a thermal imager to analyze the corresponding microwave heat generation uniformity index during microwave irradiation;

[0059] The material microstructure influence evaluation module is used to analyze the microstructure characteristics of the activated rubber powder modified asphalt material based on different microwave irradiation conditions to obtain the corresponding microstructure characteristics under different microwave irradiation conditions; and evaluate the influence of microwave performance on the activated rubber powder modified asphalt material based on the corresponding microstructure characteristics under different microwave irradiation conditions to obtain the corresponding material microstructure performance influence factors under different microwave irradiation conditions.

[0060] The material microwave performance improvement module is used to perform microwave performance evaluation calculations on the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient based on the microwave heating uniformity index and the material microstructure performance influence factors to obtain the corresponding microwave performance scores of the modified asphalt material at each time point; obtain the corresponding microwave irradiation time interval and combine it with the microwave performance scores of the modified asphalt material to adaptively optimize and adjust the microwave irradiation process conditions to generate a corresponding microwave performance improvement adjustment strategy for the modified asphalt material.

[0061] In the embodiment of the present invention, please refer to Figure 1 As shown, it is a schematic diagram of the modules of the microwave performance improvement system based on the activated rubber powder modified asphalt material of the present invention. In this example, the microwave performance improvement system based on the activated rubber powder modified asphalt material includes the following modules:

[0062] S1: The microwave irradiation condition design module is used to obtain different microwave irradiation powers and nano-zinc oxide compounding ratios and design microwave irradiation conditions to generate different combinations of microwave irradiation process conditions.

[0063] In the embodiment of the present invention, by using a professional microwave power meter with an accuracy of up to ±10W, tightly connect its probe to the output port of the microwave generator, turn on the microwave generator, and accurately adjust the power to 600W, 800W, and 1200W in sequence. After each adjustment, wait for the meter reading to stabilize and record the accurate power value. For example, when the power is adjusted to 800W and the reading stabilizes at 803W, record it as 800W (within the allowable error range). At the same time, use a high-precision electronic balance with an accuracy of 0.001 grams to obtain the nano-zinc oxide compounding ratio. Prepare multiple groups of clean weighing papers and place them on the balance tray to tare and zero. Taking the example of processing a 500-gram sample of activated rubber powder modified asphalt material, for a 1% compounding ratio, it is calculated that 5 grams of nano-zinc oxide need to be weighed. Carefully add the powder with a medicine spoon until the balance shows 5 grams. Similarly, weigh 15 grams for a 3% compounding ratio and 25 grams for a 5% compounding ratio of nano-zinc oxide. Subsequently, combine the microwave irradiation powers of 600W, 800W, and 1200W with the nano-zinc oxide compounding ratios of 1%, 3%, and 5% respectively to design a total of 9 different combinations of microwave irradiation process conditions, such as "microwave irradiation power 600W, nano-zinc oxide compounding ratio 1%", and record the parameters of each combination in detail.

[0064] S2: Performance detection and heat generation analysis module, which is used to detect the microwave performance parameters of the activated rubber powder modified asphalt material based on different combinations of microwave irradiation process conditions, so as to obtain the corresponding microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient under different microwave irradiation conditions; by combining with an infrared thermal imager, analyze the corresponding microwave heat generation uniformity index during the microwave irradiation process;

[0065] In the embodiment of the present invention, for each microwave irradiation process condition, prepare multiple samples of activated rubber powder modified asphalt material with a mass of 500 grams, and use a vector network analyzer to detect the microwave performance parameters. Place the samples in a specific test fixture of the analyzer to ensure good contact. Set parameters such as the microwave frequency and power of the analyzer according to different combinations of microwave irradiation process conditions to simulate the actual microwave irradiation environment. The analyzer accurately calculates the corresponding microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient of the samples under different microwave irradiation conditions by emitting and receiving microwave signals. For example, under the condition of "microwave irradiation power 800W, nano-zinc oxide compounding ratio 3%", after being detected by the vector network analyzer, the microwave reflection coefficient is 0.2, the microwave transmission coefficient is 0.5, and the microwave absorption coefficient is 0.3. At the same time, install an infrared thermal imager with a resolution of 640×480 pixels in the microwave irradiation device so that its field of view completely covers the samples. After the microwave irradiation starts, the infrared thermal imager collects the sample temperature distribution images in real time at a speed of 10 frames per second, and calculates the microwave heat generation uniformity index through special data analysis software. For example, in a certain microwave irradiation experiment, the calculated microwave heat generation uniformity index is 0.92, and finally the corresponding microwave heat generation uniformity index during the microwave irradiation process is obtained.

[0066] S3: Material microscopic influence evaluation module, which is used to analyze the microscopic structure characteristics of the activated rubber powder modified asphalt material based on different microwave irradiation conditions to obtain the corresponding microscopic structure characteristics under different microwave irradiation conditions; evaluate the influence of the microwave performance of the activated rubber powder modified asphalt material based on the microscopic structure characteristics corresponding to different microwave irradiation conditions to obtain the corresponding material microscopic performance influence factors under different microwave irradiation conditions;

[0067] In an embodiment of the present invention, samples of activated crumb rubber modified asphalt materials treated under different microwave irradiation conditions are cut into thin slices with a thickness of about 50 nanometers for transmission electron microscope (TEM) observation. The thin slice samples are placed on the TEM sample stage. In a high-vacuum environment, an electron gun emits an electron beam to penetrate the samples. The TEM acceleration voltage is adjusted to 200 kV and the magnification is adjusted to 10,000 times to clearly obtain microscopic structure images. Image processing software is used to perform operations such as grayscale conversion and noise reduction on the images, segment the asphalt phase, the activated crumb rubber phase, and the interface between the two, measure the number of interfacial bonds between asphalt molecules and the crumb rubber, and statistically analyze the corresponding interfacial bonding index. For example, under the conditions of a microwave irradiation power of 800 W and a nano-zinc oxide compounding ratio of 3%, the software analysis shows that the number of interfacial bonds is 180 and the interfacial bonding index is 6. A mathematical model is established to correlate the microscopic structure characteristics with the material properties, and finally, the influencing factors of the material microscopic properties corresponding to different microwave irradiation conditions are calculated.

[0068] S4: A material microwave performance improvement module, which is used to perform microwave performance evaluation calculations on the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient based on the microwave heating uniformity index and the material microscopic property influencing factor to obtain the microwave performance score of the modified asphalt material corresponding to each time point; obtain the corresponding microwave irradiation time interval and combine the microwave performance score of the modified asphalt material to adaptively optimize and adjust the microwave irradiation process conditions to generate a microwave performance improvement adjustment strategy corresponding to the modified asphalt material.

[0069] In the embodiments of the present invention, corresponding microwave performance evaluation calculations are performed at each time point according to a calculation formula. Specifically, the microwave performance score of the modified asphalt material = microwave heating uniformity index × material micro-performance influence factor × 1 / (microwave reflection coefficient × 0.3 + microwave transmission coefficient × 0.2 + microwave absorption coefficient × 0.5). For example, at the microwave irradiation time point of the 1st minute, the measured microwave reflection coefficient is 0.2, the microwave transmission coefficient is 0.1, the microwave absorption coefficient is 0.7, the microwave heating uniformity index is 0.9, and the material micro-performance influence factor is 1.2. Substituting these values into the formula, the microwave performance score of the modified asphalt material at this time point is calculated to be 2.512, thereby obtaining the corresponding microwave performance scores of the modified asphalt material at each time point. At the same time, a set microwave irradiation time interval of 10 minutes is obtained, and the microwave performance scores of the modified asphalt material are recorded at 1-minute intervals. If the performance scores decrease within a certain time period, such as from 0.55 to 0.5 within 6 - 8 minutes, by adjusting the microwave irradiation process conditions, such as appropriately increasing the microwave irradiation power and optimizing the compounding ratio of nano-zinc oxide, and conducting experiments again, the optimal microwave performance improvement adjustment strategy is determined based on the new performance scores. For example, the microwave irradiation power is increased from 800W to 900W, and the compounding ratio of nano-zinc oxide is increased from 3% to 4%, and finally the corresponding microwave performance improvement adjustment strategy for the modified asphalt material is generated.

[0070] Furthermore, the microwave irradiation condition design module includes the following functions:

[0071] Obtain different microwave irradiation powers, including 600W, 800W, and 1200W;

[0072] Obtain different compounding ratios of nano-zinc oxide, including 1%, 3%, and 5%;

[0073] Design microwave irradiation conditions according to different microwave irradiation powers and compounding ratios of nano-zinc oxide to generate different combinations of microwave irradiation process conditions.

[0074] As an embodiment of the present invention, refer to Figure 2 shown in Figure 1 is the functional flowchart of the microwave irradiation condition design module in

[0075] S11: Obtain different microwave irradiation powers, including 600W, 800W, and 1200W;

[0076] In an embodiment of the present invention, different microwave irradiation powers are obtained by using a professional microwave power meter. The accuracy of the meter can reach ±10 W, which can accurately measure the power output by the microwave device. Connect the probe of the microwave power meter to the output port of the microwave generator to ensure a tight connection. Turn on the microwave generator and adjust the power to 600 W, 800 W, 1200 W, etc. in sequence. After each power adjustment, wait for the meter reading to stabilize and record the current microwave irradiation power value. For example, when the power of the microwave generator is adjusted to 600 W, the meter reading stabilizes at 602 W, which is recorded as 600 W (the measurement error is within the allowable range). Through such operations, different microwave irradiation powers required for subsequent experiments are accurately obtained.

[0077] S12: Obtain different compounding ratios of nano-zinc oxide, including 1%, 3%, and 5%;

[0078] In an embodiment of the present invention, different compounding ratios of nano-zinc oxide are obtained by using a high-precision electronic balance. The accuracy of the electronic balance is 0.001 g, which can meet the requirement of accurately weighing nano-zinc oxide. Prepare multiple clean weighing papers and place them on the trays of the electronic balance respectively. Tare and zero. According to different compounding ratios of nano-zinc oxide, calculate the mass of nano-zinc oxide required. For example, for a compounding ratio of 1%, assuming the mass of the activated rubber powder modified asphalt material sample to be processed is 500 g, then 5 g of nano-zinc oxide needs to be weighed (500 × 1% = 5 g). Use a spatula to carefully add the nano-zinc oxide powder to the weighing paper and observe the reading of the electronic balance until the target mass is reached. In the same way, weigh the nano-zinc oxide powder corresponding to the compounding ratios of 3% and 5% respectively. For example, for a compounding ratio of 3%, 15 g of nano-zinc oxide is weighed; for a compounding ratio of 5%, 25 g of nano-zinc oxide is weighed. In this way, different compounding ratios of nano-zinc oxide are obtained for subsequent experiments.

[0079] S13: Design microwave irradiation conditions according to different microwave irradiation powers and compounding ratios of nano-zinc oxide to generate different combinations of microwave irradiation process conditions.

[0080] In the embodiments of the present invention, through the design of microwave irradiation conditions based on different previously obtained microwave irradiation powers and different compounding ratios of nano-zinc oxide, the microwave irradiation powers of 600W, 800W, and 1200W are respectively combined with the compounding ratios of nano-zinc oxide of 1%, 3%, and 5%. For example, the microwave irradiation power of 600W is combined with the compounding ratio of 1% nano-zinc oxide to design a microwave irradiation process condition; the combination of 600W and 3% forms another process condition, and so on, a total of 9 different combinations of microwave irradiation process conditions are generated. During the design process, the specific parameters corresponding to each combination are clearly recorded, such as "microwave irradiation power 600W, compounding ratio of nano-zinc oxide 1%", providing an accurate process condition basis for subsequent microwave performance improvement experiments on activated rubber powder modified asphalt materials.

[0081] Further, the performance detection and heat generation analysis module includes the following functions:

[0082] Based on the compounding ratios of nano-zinc oxide within different combinations of microwave irradiation process conditions, the irradiation conditions of the activated rubber powder modified asphalt material are compounded to obtain compounded samples of the modified asphalt material corresponding to different microwave irradiation conditions;

[0083] According to the microwave irradiation power within different combinations of microwave irradiation process conditions, the microwave field simulation is carried out on the compounded samples of the modified asphalt material corresponding to the corresponding microwave irradiation conditions to simulate the propagation and action process of microwaves in the compounded samples of the modified asphalt material, and a microwave simulation field of the modified asphalt material corresponding to different microwave irradiation conditions is generated;

[0084] Perform statistical analysis on the microwave distribution of the microwave simulation field of the modified asphalt material corresponding to different microwave irradiation conditions to obtain the electric field reflection intensity distribution, magnetic field transmission intensity distribution, and energy absorption distribution corresponding to different microwave irradiation conditions;

[0085] Perform microwave performance parameter detection on the electric field reflection intensity distribution, magnetic field transmission intensity distribution, and energy absorption distribution corresponding to different microwave irradiation conditions to obtain the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient corresponding to different microwave irradiation conditions;

[0086] Combined with a thermal imager, the microwave heating uniformity index of the activated rubber powder modified asphalt material during the microwave irradiation process is monitored and analyzed in real time.

[0087] As an embodiment of the present invention, refer to Figure 3 shown, for Figure 1 the functional flow diagram of the performance detection and heat generation analysis module in

[0088] S21: Based on the compounding ratios of nano-zinc oxide within different combinations of microwave irradiation process conditions, compound the irradiation conditions for the activated rubber powder modified asphalt material to obtain compound samples of the modified asphalt material corresponding to different microwave irradiation conditions;

[0089] In the embodiment of the present invention, by preparing multiple groups of activated rubber powder modified asphalt material samples, with each group having a set mass of 500 grams, construct different combinations of microwave irradiation process conditions, such as microwave irradiation powers of 600W, 800W, and 1200W respectively, and the compounding ratios of nano-zinc oxide are set at 1%, 3%, and 5% respectively, forming 9 different condition combinations. Then, using a high-precision electronic scale, accurately weigh the nano-zinc oxide powder according to the ratio. For example, when the compounding ratio of nano-zinc oxide is 3%, weigh 15 grams of nano-zinc oxide. Evenly sprinkle the weighed nano-zinc oxide powder on the surface of the activated rubber powder modified asphalt material sample. Subsequently, use a high-speed stirring device, adjust the stirring speed to 800 revolutions per minute, and stir the material to make the nano-zinc oxide evenly dispersed in the activated rubber powder modified asphalt material, thus completing the compounding of the irradiation conditions and obtaining compound samples of the modified asphalt material corresponding to different microwave irradiation conditions. For example, under the conditions of a microwave irradiation power of 800W and a nano-zinc oxide compounding ratio of 3%, after 10 minutes of stirring, the material is evenly mixed to obtain the corresponding compound sample of the modified asphalt material.

[0090] S22: According to the microwave irradiation power within different combinations of microwave irradiation process conditions, perform microwave field simulation on the compound samples of the modified asphalt material corresponding to the corresponding microwave irradiation conditions to simulate the propagation and action process of microwaves in the compound samples of the modified asphalt material, and generate a microwave simulation field of the modified asphalt material corresponding to different microwave irradiation conditions;

[0091] In the embodiment of the present invention, by using a professional microwave field simulation software, such as COMSOL Multiphysics, perform microwave field simulation on the compound samples of the modified asphalt material under different combinations of microwave irradiation process conditions. In the software, accurately set the microwave source parameters according to the actual microwave irradiation power, such as 600W, 800W, and 1200W, import the geometric model of the compound sample of the modified asphalt material, and the model is constructed based on the actual size of the sample to ensure the accuracy of the simulation. Set the propagation parameters of microwaves in the material, such as dielectric constant, magnetic permeability, etc., which are obtained through preliminary experimental measurements. Start the simulation program, and the software begins to simulate the propagation and action process of microwaves in the compound sample of the modified asphalt material. For example, when simulating the condition of a microwave irradiation power of 800W, the software calculates the propagation path of microwaves inside the material, the changes in the electromagnetic field generated by the interaction with the material, etc., and finally generates a microwave simulation field of the modified asphalt material corresponding to different microwave irradiation conditions.

[0092] S23: Conduct a statistical analysis of the microwave distribution of the modified asphalt material microwave simulation fields corresponding to different microwave irradiation conditions to obtain the electric field reflection intensity distribution, magnetic field transmission intensity distribution, and energy absorption distribution corresponding to different microwave irradiation conditions;

[0093] In the embodiments of the present invention, by using the data analysis tool provided by the simulation software, a statistical analysis of the microwave distribution of the modified asphalt material microwave simulation fields corresponding to different microwave irradiation conditions is conducted. In the simulation field, multiple monitoring points are selected, and the software calculates the electric field reflection intensity, magnetic field transmission intensity, and energy absorption values of these points. For example, in the simulation field with a microwave irradiation power of 800 W, 100 monitoring points are evenly selected inside the material. The software calculates the electric field reflection intensity of each point according to the simulation results, and then organizes these data to obtain the electric field reflection intensity distribution. Using the same method, the magnetic field transmission intensity distribution and energy absorption distribution are statistically analyzed. Through such analysis, a clear understanding of the distribution of microwaves in the compound samples of the modified asphalt material under different microwave irradiation conditions can be obtained, and finally, the electric field reflection intensity distribution, magnetic field transmission intensity distribution, and energy absorption distribution corresponding to different microwave irradiation conditions are obtained.

[0094] S24: Detect the microwave performance parameters of the electric field reflection intensity distribution, magnetic field transmission intensity distribution, and energy absorption distribution corresponding to different microwave irradiation conditions to obtain the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient corresponding to different microwave irradiation conditions;

[0095] In the embodiments of the present invention, by relying on the microwave propagation theory and simulation field data, the microwave performance parameters of the electric field reflection intensity distribution, magnetic field transmission intensity distribution, and energy absorption distribution corresponding to different microwave irradiation conditions are detected to calculate the microwave reflection coefficient using the formula, such as reflection coefficient = reflected electric field intensity / incident electric field intensity. According to the electric field reflection intensity distribution data in the simulation field and the set incident electric field intensity, the microwave reflection coefficients under different microwave irradiation conditions are calculated. For the microwave transmission coefficient, it is calculated in combination with the magnetic field transmission intensity distribution data according to the formula transmission coefficient = transmitted magnetic field intensity / incident magnetic field intensity. The microwave absorption coefficient is obtained through the energy absorption distribution data, for example, microwave absorption coefficient = 1 / energy absorption distribution value. For example, under the condition of a microwave irradiation power of 800 W, the calculated microwave reflection coefficient is 0.2, the microwave transmission coefficient is 0.5, and the microwave absorption coefficient is 0.3. Finally, the microwave performance parameters corresponding to different microwave irradiation conditions are obtained.

[0096] S25: Combine a thermal imager to monitor and analyze the microwave heating uniformity index of the activated rubber powder modified asphalt material during microwave irradiation in real time.

[0097] In an embodiment of the present invention, a sample of an activated rubber powder modified asphalt material is placed at a specific position in a microwave irradiation device to ensure that the sample can be uniformly irradiated with microwaves. A thermal imager with a resolution of 640×480 pixels is selected and installed at a position that can fully cover the sample so that the thermal imager field of view completely includes the sample. Before microwave irradiation, the thermal imager is calibrated to ensure accurate temperature measurement. After microwave irradiation is started, the thermal imager collects temperature distribution images of the sample during microwave irradiation in real time at a speed of 10 frames per second. These images are processed using data analysis software to calculate the mean and standard deviation of the sample temperature. According to the formula: microwave heating uniformity index = 1-(temperature standard deviation / temperature mean), the corresponding microwave heating uniformity index of the activated rubber powder modified asphalt material during microwave irradiation is calculated, and finally the corresponding microwave heating uniformity index is obtained.

[0098] Furthermore, the irradiation conditions of the activated rubber powder modified asphalt material are compounded based on the nano zinc oxide compounding ratio within the microwave irradiation process conditions of different combinations, including:

[0099] Based on different combinations of microwave irradiation process conditions, the corresponding nano zinc oxide compound ratio is evenly dispersed on the activated rubber powder modified asphalt material to form a corresponding conductive network, so as to enhance the absorption and loss of the activated rubber powder modified asphalt material corresponding to the microwave irradiation power;

[0100] In an embodiment of the present invention, a plurality of groups of activated rubber powder modified asphalt material samples are prepared, each group of samples has a mass of 500 grams, and different combinations of microwave irradiation process conditions are set, such as microwave irradiation powers of 600 W, 800 W, and 1200 W, respectively, and nano zinc oxide compounding ratios are set to 1%, 3%, and 5%, respectively, to form 9 different condition combinations, and a high-precision electronic scale is used to accurately weigh the corresponding mass of nano zinc oxide powder. For example, when the nano zinc oxide compounding ratio is 3%, 15 grams of nano zinc oxide is weighed, and the weighed nano zinc oxide powder is evenly sprinkled on the activated rubber powder modified asphalt material. On the surface of the asphalt material sample, a high-speed stirring device is used with the stirring speed set at 800 revolutions per minute to stir the material so that the nano zinc oxide powder is evenly dispersed in the activated rubber powder modified asphalt material and a conductive network is gradually formed. During the stirring process, the mixing state of the material is observed to ensure that the nano zinc oxide is evenly distributed, thereby enhancing the absorption and loss capacity of the activated rubber powder modified asphalt material to different microwave irradiation powers. For example, under the conditions of a microwave irradiation power of 600 W and a nano zinc oxide compounding ratio of 3%, after 10 minutes of stirring, the material presents a uniform mixing state and a conductive network is initially formed.

[0101] Preferably, based on the microwave irradiation power of the corresponding conductive network under different combinations of microwave irradiation process conditions, the activated crumb rubber modified asphalt material is compounded and stirred to significantly improve the softening point of the corresponding activated crumb rubber modified asphalt material by using nano-zinc oxide, so as to obtain the compounded samples of the modified asphalt material corresponding to different microwave irradiation conditions.

[0102] In the embodiment of the present invention, through the compounding and stirring operation in a reaction kettle with temperature control and stirring functions, the sample of the activated crumb rubber modified asphalt material previously uniformly dispersed with nano-zinc oxide is put into the reaction kettle. According to different combinations of microwave irradiation process conditions, the microwave irradiation power is set. For example, in a set of experiments, the microwave irradiation power is set to 800W, the stirring device of the reaction kettle is turned on, the stirring speed is set to 500 revolutions per minute, and at the same time, the microwave irradiation equipment is turned on to irradiate and stir the material. During the stirring process, nano-zinc oxide and the activated crumb rubber modified asphalt material fully interact with each other, significantly improving the softening point of the material. The temperature of the material is monitored in real time by a temperature sensor installed in the reaction kettle. When the temperature reaches the set softening point detection temperature (such as 100°C), the microwave irradiation and stirring are stopped, the material sample is taken out, and the softening point of the material is measured by a ring and ball softening point apparatus. For example, under the conditions of a microwave irradiation power of 800W and a nano-zinc oxide compounding ratio of 3%, after compounding and stirring, the softening point of the material is increased from the original 80°C to more than 90°C, such as 95°C, to obtain the compounded sample of the modified asphalt material corresponding to this microwave irradiation condition. Such operations are performed on the samples under different microwave irradiation conditions to obtain a series of compounded samples of the modified asphalt material corresponding to different microwave irradiation conditions.

[0103] Further, the microwave heating uniformity index corresponding to the activated crumb rubber modified asphalt material during the microwave irradiation process by combining a thermal imager for real-time monitoring and analysis includes:

[0104] By combining a thermal imager to monitor in real time the temperature distribution of the activated crumb rubber modified asphalt material during the microwave irradiation process;

[0105] In an embodiment of the present invention, in a microwave irradiation device, an activated rubber powder modified asphalt material sample is placed at a specific position to ensure that the sample can uniformly receive microwave irradiation. A thermal imager with a high-precision resolution of 640×480 pixels is selected and installed at a position that can fully cover the sample, so that the field of view of the thermal imager completely includes the sample. Before the microwave irradiation starts, the thermal imager is calibrated to ensure the accuracy of temperature measurement. After the microwave irradiation is started, the thermal imager collects the temperature distribution images of the sample during the microwave irradiation process at a speed of 10 frames per second. For example, in an experiment with a microwave irradiation power of 600 W and a nano-zinc oxide compounding ratio of 3%, the thermal imager continuously records the temperature distribution of the sample at every moment from the start to the end of irradiation, generating a series of temperature distribution images, clearly presenting the temperature changes of different parts of the sample at different times.

[0106] Preferably, statistical analysis of the mean value and standard deviation of the temperature distribution corresponding to the activated rubber powder modified asphalt material during the microwave irradiation process is performed to obtain the temperature mean value and temperature standard deviation of the asphalt material during the microwave irradiation process.

[0107] In an embodiment of the present invention, by using a special data analysis software to process the temperature distribution images collected by the thermal imager previously, first, the temperature data in the images is extracted and converted into a digital format. For each temperature distribution image, the average value of the temperature values of all pixel points is calculated to obtain the temperature value of the asphalt material at that moment. The temperature values of all moments during the entire microwave irradiation process are summarized, and then the average value of these temperature values is calculated as the temperature mean value of the asphalt material during the microwave irradiation process. At the same time, using statistical methods, the standard deviation of these temperature values, that is, the temperature standard deviation, is calculated. For example, in a microwave irradiation experiment, after analyzing 1000 frames of temperature distribution images, the temperature mean value is 65 °C and the temperature standard deviation is 3 °C, reflecting the average level and temperature fluctuation degree of the asphalt material temperature during this microwave irradiation process, and finally obtaining the temperature mean value and temperature standard deviation of the asphalt material during the microwave irradiation process.

[0108] Preferably, based on the temperature mean value and temperature standard deviation of the asphalt material during the microwave irradiation process, a uniform heat generation quantification calculation is performed on the temperature distribution corresponding to the activated rubber powder modified asphalt material during the microwave irradiation process to obtain a microwave heat generation uniformity index.

[0109] In an embodiment of the present invention, the microwave heating uniformity index is calculated according to a specific heating uniformity quantization calculation formula: Microwave heating uniformity index = 1 - (standard deviation of temperature / average temperature). Substitute the average temperature and the standard deviation of temperature corresponding to the asphalt material obtained previously during microwave irradiation into the formula. For example, when the average temperature is 70 °C and the standard deviation of temperature is 4 °C, substituting into the formula for calculation gives: Microwave heating uniformity index = 1 - (4 / 70) ≈ 0.943. Through such calculation, the heating uniformity degree of the activated rubber powder modified asphalt material during microwave irradiation is quantified. The closer the microwave heating uniformity index is to 1, the more uniform the temperature distribution of the material during microwave irradiation, providing key data for evaluating the influence of microwaves on the material properties.

[0110] Further, the material microstructure influence evaluation module includes the following functions:

[0111] Based on different microwave irradiation conditions and using a transmission electron microscope to observe the microstructure of the activated rubber powder modified asphalt material, the microstructure of the asphalt material corresponding to different microwave irradiation conditions is obtained;

[0112] In an embodiment of the present invention, by preparing multiple groups of activated rubber powder modified asphalt material samples, different microwave irradiation conditions are set respectively. The microwave irradiation powers are set to 600 W, 800 W, and 1200 W, and the compounding ratios of nano-zinc oxide are 1%, 3%, and 5% respectively, forming 9 different condition combinations. The samples are cut into thin slices with a thickness of about 50 nanometers for observation by a transmission electron microscope (TEM). Place the thin slice samples on the sample stage of the TEM. In a high-vacuum environment, an electron beam is emitted by the electron gun to penetrate the samples. By adjusting the acceleration voltage of the TEM to 200 kV and the magnification to 10,000 times, clear microstructure images of the activated rubber powder modified asphalt material under different microwave irradiation conditions are obtained. For example, under the conditions of a microwave irradiation power of 600 W and a nano-zinc oxide compounding ratio of 3%, the TEM image shows that the activated rubber powder particles in the asphalt matrix are dispersed relatively uniformly, and the fusion of the rubber powder particle boundaries with the asphalt matrix is good. Finally, the microstructure of the asphalt material corresponding to different microwave irradiation conditions is obtained.

[0113] Preferably, perform microstructure characteristic analysis on the microstructure of the asphalt material corresponding to different microwave irradiation conditions to obtain the microstructure characteristics corresponding to different microwave irradiation conditions;

[0114] In an embodiment of the present invention, by using image processing software to analyze the microscopic structure images of asphalt materials obtained previously under different microwave irradiation conditions, the images are first grayscaled and denoised to enhance the recognition of microscopic structure features. By setting appropriate thresholds, the asphalt phase, the activated rubber powder phase, and the interface between the two are segmented. The number of interfacial bonds between asphalt molecules and rubber powder is measured, and the corresponding interfacial bond index is statistically analyzed. For example, under the conditions of a microwave irradiation power of 800 W and a nano-zinc oxide compounding ratio of 3%, the software analysis shows that the number of interfacial bonds is 180, and the interfacial bond index is 6. Taking these data as microscopic structure characteristics, the corresponding microscopic structure characteristics under different microwave irradiation conditions are finally obtained.

[0115] Preferably, by combining with an X-ray diffractometer to obtain the corresponding chemical crystal structure of the activated rubber powder modified asphalt material, and based on the chemical crystal structure, the chemical bond energy of the activated rubber powder modified asphalt material corresponding to different microwave irradiation conditions is analyzed to obtain the corresponding material chemical bond energy under different microwave irradiation conditions;

[0116] In an embodiment of the present invention, the activated rubber powder modified asphalt material sample is placed on the sample holder of the X-ray diffractometer, a copper target X-ray source is used, the tube voltage is set to 40 kV, the tube current is set to 30 mA, and scanning is performed in the angular range of 5° - 80° at a scanning speed of 2° / minute. The X-ray interacts with the chemical crystals in the sample to generate a diffraction pattern. By analyzing the position, intensity, and width of the peaks in the diffraction pattern, the chemical crystal structure of the material is determined. Based on the chemical crystal structure, using chemical bond energy calculation software and combining information such as crystal structure parameters and atomic coordinates, the bond energy of each chemical bond in the activated rubber powder modified asphalt material under different microwave irradiation conditions is calculated. For example, under the conditions of a microwave irradiation power of 800 W and a nano-zinc oxide compounding ratio of 3%, it is calculated that the C-C bond energy is 347 kJ / mol, the C=C bond energy is 614 kJ / mol, etc. Finally, the corresponding material chemical bond energy under different microwave irradiation conditions is obtained.

[0117] Preferably, based on the microscopic structure characteristics and material chemical bond energy corresponding to different microwave irradiation conditions, the microwave performance impact of the corresponding activated rubber powder modified asphalt material is evaluated using the material microscopic performance impact calculation formula to obtain the corresponding material microscopic performance impact factor under different microwave irradiation conditions.

[0118] In an embodiment of the present invention, by obtaining the specific temperature and the corresponding Boltzmann constant (this constant is a constant in the art used to convert chemical bond energy into a temperature-related thermal energy term) corresponding to the activated crumb rubber modified asphalt material under corresponding microwave irradiation, and combining the number of interfacial bonds between asphalt molecules and crumb rubber, the interfacial bonding index between asphalt molecules and crumb rubber, and the chemical bond energy of the material, a suitable calculation formula for influencing the microscopic properties of the material is constructed to evaluate and calculate the influence of microwave performance, so as to obtain the influence factors of the microscopic properties of the material corresponding to different microwave irradiation conditions. In addition, this calculation formula for influencing the microscopic properties of the material can also use any performance influence evaluation algorithm in the art to replace the process of evaluating the influence of microwave performance, and is not limited to this calculation formula for influencing the microscopic properties of the material.

[0119] Further, the microscopic structure characteristic analysis of the microscopic structure of the asphalt material corresponding to different microwave irradiation conditions includes:

[0120] Obtaining the corresponding dispersion state of the material crumb rubber through the microscopic structure of the asphalt material corresponding to different microwave irradiation conditions;

[0121] In an embodiment of the present invention, in the laboratory, multiple groups of identical asphalt material samples are prepared and processed under different microwave irradiation conditions respectively. The microwave irradiation powers are set to 600W, 800W, and 1200W, and the compounding ratios of nano-zinc oxide are 1%, 3%, and 5% respectively, forming 9 different combinations of microwave irradiation conditions. And by using a scanning electron microscope (SEM) to observe the microscopic structure of the processed asphalt material samples, the samples are fixed on the sample stage of the SEM. In a high-vacuum environment, an electron beam is emitted by an electron gun, and the electron beam interacts with the sample to generate a secondary electron image. By adjusting the magnification of the SEM to 5000 times, the crumb rubber particles in the microscopic structure of the asphalt material can be clearly observed. According to the characteristics such as the distribution uniformity and agglomeration of the crumb rubber particles in the image, the dispersion state of the material crumb rubber is determined. For example, under the conditions of a microwave irradiation power of 800W and a compounding ratio of nano-zinc oxide of 3%, it can be seen from the SEM image that the crumb rubber particles are relatively evenly dispersed in the asphalt matrix and there is less agglomeration phenomenon, and finally the corresponding dispersion state of the material crumb rubber is obtained.

[0122] Preferably, based on the dispersion state of the material crumb rubber, the number of interfacial bonds between asphalt molecules in the microscopic structure of the asphalt material corresponding to different microwave irradiation conditions is statistically counted to obtain the number of interfacial bonds between asphalt molecules and crumb rubber under different microwave irradiation conditions;

[0123] In an embodiment of the present invention, based on the previously obtained dispersion state of the material rubber powder, an SEM image of the microstructure of the asphalt material under different microwave irradiation conditions is analyzed using image processing software. In the software, the image is first grayscale processed to enhance the contrast between asphalt molecules and rubber powder. Then, by setting an appropriate threshold, the asphalt molecules and rubber powder are segmented in the image. A specific algorithm, such as an edge detection algorithm, is used to identify the interface between asphalt molecules and rubber powder, and each interface is marked. The number of interfaces is counted to obtain the number of interfacial bonds between asphalt molecules and rubber powder under different microwave irradiation conditions. For example, under the conditions of a microwave irradiation power of 800 W and a nano-zinc oxide compounding ratio of 3%, after analysis by the image processing software, the number of interfacial bonds between asphalt molecules and rubber powder is counted as 150, and finally the number of interfacial bonds between asphalt molecules and rubber powder under different microwave irradiation conditions is obtained.

[0124] Preferably, an interfacial bonding index analysis is performed between the rubber powder and asphalt molecules in the microstructure of the corresponding asphalt material under different microwave irradiation conditions according to the number of interfacial bonds between asphalt molecules and rubber powder under different microwave irradiation conditions, so as to obtain the interfacial bonding index between asphalt molecules and rubber powder under different microwave irradiation conditions;

[0125] In an embodiment of the present invention, according to the number of interfacial bonds between asphalt molecules and rubber powder obtained under different microwave irradiation conditions, combined with other performance parameters of the material, such as the tensile strength and hardness of the material, an interfacial bonding index analysis is performed between the rubber powder and asphalt molecules to establish a mathematical model: interfacial bonding index = number of interfacial bonds × material tensile strength / material hardness. For example, under a certain microwave irradiation condition, the number of interfacial bonds between asphalt molecules and rubber powder is 200, the material tensile strength is 5 MPa, and the material hardness is 200 HBW. Substituting into the model for calculation, the interfacial bonding index is obtained as 5. By performing such calculations on samples under different microwave irradiation conditions, finally the interfacial bonding index between asphalt molecules and rubber powder under different microwave irradiation conditions is obtained.

[0126] Preferably, the number of interfacial bonds and the interfacial bonding index between asphalt molecules and rubber powder under different microwave irradiation conditions are used as the corresponding microstructure characteristics to obtain the corresponding microstructure characteristics under different microwave irradiation conditions.

[0127] In the embodiments of the present invention, the number of interfacial bonds and the interfacial bonding index between asphalt molecules and rubber powder obtained under different microwave irradiation conditions are summarized as corresponding microstructural characteristics, and a database is established. Different microwave irradiation conditions (including power and time) are associated and stored with the corresponding number of interfacial bonds and interfacial bonding index. For example, in the database, it is recorded that when the microwave irradiation power is 800 W and the compounding ratio of nano-zinc oxide is 3%, the number of interfacial bonds is 180 and the interfacial bonding index is 6; when the microwave irradiation power is 1200 W and the compounding ratio of nano-zinc oxide is 1%, the number of interfacial bonds is 220 and the interfacial bonding index is 7.5, etc. In this way, the corresponding microstructural characteristics under different microwave irradiation conditions are finally obtained, providing data support for subsequent research on the influence of microwave irradiation on the performance of asphalt materials.

[0128] Furthermore, the specific calculation formula for the influence on the microproperties of the material is as follows:

[0129] ;

[0130] In the formula, is the influence factor of the microproperties of the material, is the number of interfacial bonds between asphalt molecules and rubber powder, is the interfacial bonding index between asphalt molecules and rubber powder, is the exponential function, is the chemical bond energy of the material, is the Boltzmann constant, is the temperature of the activated rubber powder modified asphalt material corresponding to the corresponding microwave irradiation.

[0131] The present invention has obtained a calculation formula for the influence on the microproperties of a material through the use of a specific mathematical model and verification, which is used to evaluate the influence of microwave performance on the corresponding activated rubber powder modified asphalt material. This formula fully considers the influence factor of the microproperties of the material , the number of interfacial bonds between asphalt molecules and rubber powder, the interfacial bonding index between asphalt molecules and rubber powder, the exponential function , the chemical bond energy of the material , the Boltzmann constant , and the temperature , this formula can realize the evaluation process of the influence of microwave performance on the corresponding activated crumb rubber modified asphalt material. At the same time, the calculation formula for the influence of the microscopic properties of this material can quantify the changes in the microscopic properties of the material under different microwave irradiation conditions. By calculating the influence factor of microscopic properties, it provides a clear quantitative basis for understanding the response of the material under microwave irradiation. Through this calculation, the influence of microwave irradiation on the structure and properties of asphalt materials can be evaluated, providing data support for further optimizing the microwave performance of the materials. This formula includes the number of interfacial bonds and the interfacial bonding index between asphalt molecules and crumb rubber. These two parameters can reflect the microscopic interfacial characteristics of the material. By analyzing these interfacial effects, the physical and chemical property changes of the crumb rubber modified asphalt material, especially its performance under microwave irradiation, can be better understood, which helps to optimize the material formula and improve the stability and durability of asphalt materials. The chemical bond energy is introduced into this formula, which helps to quantify the influence of microwave irradiation on the chemical bonds between material molecules. Chemical bond energy is an important determinant of material properties. Considering the chemical bond changes of the material under different microwave irradiation conditions can help analyze the physical properties (such as thermal stability, mechanical properties, etc.) of the material and its sensitivity to microwave irradiation. Secondly, the temperature parameter in this formula introduces the influence of temperature on microscopic properties. The temperature of the material under microwave irradiation may significantly affect its microscopic structure and properties. Temperature is closely related to chemical reaction rate, molecular motion, etc. Therefore, by combining temperature changes for analysis, the response of the material under different microwave irradiation conditions can be more comprehensively evaluated. By quantifying the influence of microwave irradiation on activated crumb rubber modified asphalt materials, this formula provides theoretical support for the application of microwave technology in materials engineering. It helps to optimize microwave irradiation conditions, improve the modification effect of asphalt materials, and thus enhance the performance of asphalt, especially in road engineering applications.

[0132] Furthermore, the material microwave performance improvement module includes the following functions:

[0133] By assigning corresponding weights to the corresponding microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient, and using the material microwave performance calculation formula based on the microwave heating uniformity index and the material microscopic property influence factor to perform microwave performance evaluation calculations on the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient at each microwave irradiation time point, so as to obtain the corresponding microwave performance scores of the modified asphalt material at each time point;

[0134] In an embodiment of the present invention, in a laboratory environment, for a modified asphalt material, weight distribution is performed according to the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient obtained from previous analysis. For example, according to the requirements in actual application of the material and the previous experimental data, the weight of the microwave reflection coefficient is set to 0.3, the weight of the microwave transmission coefficient is set to 0.2, and the weight of the microwave absorption coefficient is set to 0.5. At the same time, through a material microstructure analysis device, such as a scanning electron microscope (SEM), the influencing factors of the material microstructure performance are obtained. Using a microwave test device, such as a vector network analyzer, the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient of the modified asphalt material are measured at different microwave irradiation time points. These data and the microwave heating uniformity index (calculated by measuring the temperature distribution of the material under microwave irradiation through a temperature sensor) constitute a suitable calculation formula for the microwave performance of the material. For example, the microwave performance score of the modified asphalt material = microwave heating uniformity index × material microstructure performance influencing factor × 1 / (microwave reflection coefficient × 0.3 + microwave transmission coefficient × 0.2 + microwave absorption coefficient × 0.5). For example, at the microwave irradiation time point of the 1st minute, the measured microwave reflection coefficient is 0.2, the microwave transmission coefficient is 0.1, the microwave absorption coefficient is 0.7, the microwave heating uniformity index is 0.9, and the material microstructure performance influencing factor is 1.2. Substituting these values into the formula, the microwave performance score of the modified asphalt material at this time point is calculated to be 2.512. Finally, the microwave performance scores of the modified asphalt material corresponding to each time point are obtained. In addition, this calculation formula for the microwave performance of the material can also use any performance detection algorithm in the field to replace the process of microwave performance evaluation calculation, and is not limited to this calculation formula for the microwave performance of the material.

[0135] Preferably, obtain the corresponding microwave irradiation time interval;

[0136] In an embodiment of the present invention, before the experiment starts, by using a timer or a microwave irradiation equipment control system with a timing function, for example, the total duration of microwave irradiation is set to 10 minutes. Within these 10 minutes, at a certain time interval, such as every 1 minute, measurements and calculations of data related to microwave performance are performed, that is, the previous operations are executed to obtain the microwave performance scores of the modified asphalt material corresponding to different time points. During the entire 10 - minute microwave irradiation process, other experimental conditions, such as environmental temperature, humidity, etc., are kept constant to ensure the accuracy and comparability of the experimental results, and finally the corresponding microwave irradiation time interval is obtained.

[0137] Preferably, based on the microwave irradiation time interval, perform an analysis on the changing trend of the microwave performance scores of the modified asphalt material corresponding to each time point to obtain the changing trend of the microwave performance of the material corresponding to the microwave irradiation time zone;

[0138] In an embodiment of the present invention, after the microwave irradiation ends, the microwave performance scores of the modified asphalt material corresponding to each time point are collected. Using data analysis software, such as Origin, with the microwave irradiation time as the abscissa and the microwave performance score of the modified asphalt material as the ordinate, a line graph is plotted. By observing the trend of the line graph, the change trend of the microwave performance score of the material within the microwave irradiation time interval is analyzed. For example, it can be seen from the plotted line graph that within the first 5 minutes, the microwave performance score of the modified asphalt material gradually increases from 0.35 to 0.42; within 5 - 8 minutes, the score remains relatively stable, maintaining at about 0.42; within 8 - 10 minutes, the score slightly decreases from 0.42 to 0.40. Thus, it is concluded that within the 10 - minute microwave irradiation time zone, the microwave performance of the material first increases, then stabilizes, and then slightly decreases, and finally the change trend of the microwave performance of the corresponding material under the microwave irradiation time zone is obtained.

[0139] Preferably, based on the change trend of the microwave performance of the material corresponding to the microwave irradiation time zone, the microwave irradiation process conditions are adaptively optimized and adjusted. If the change trend of the microwave performance of the material shows a downward trend over time, the microwave irradiation power corresponding to the microwave irradiation process conditions and the compounding ratio of nano - zinc oxide can be automatically increased, otherwise no treatment is performed to generate an adjustment strategy for improving the microwave performance of the modified asphalt material.

[0140] In an embodiment of the present invention, by adaptively optimizing and adjusting the microwave irradiation process conditions according to the change trend of the microwave performance of the material corresponding to the microwave irradiation time zone, if the change trend of the microwave performance of the material shows a downward trend over time, such as when it is previously found that the performance score decreases within 8 - 10 minutes. At this time, through the control interface of the microwave irradiation equipment, manually or through a preset automated program, the microwave irradiation power is increased from the original 800W to 1000W. At the same time, the compounding ratio of nano - zinc oxide is adjusted, and its mass proportion in the modified asphalt material is increased from the original 3% to 3.5%. If the change trend of the microwave performance of the material does not show a downward trend, such as in the stable stage or the rising stage, the microwave irradiation process conditions are not changed. In this way, an adjustment strategy for improving the microwave performance of the modified asphalt material is generated to improve the performance of the material under microwave irradiation.

[0141] Furthermore, the specific formula for calculating the microwave performance of the material is:

[0142] ;

[0143] In the formula, is the microwave performance score of the modified asphalt material corresponding to the time point , is the microwave reflection coefficient corresponding to the time point . is the microwave reflection weight, at the time point the corresponding microwave transmission coefficient, is the microwave transmission weight, at the time point the corresponding microwave absorption coefficient, is the microwave absorption weight, is the influencing factor of material microscopic properties, is the microwave heating uniformity index.

[0144] The present invention obtains a calculation formula for the microwave properties of materials through the use of a specific mathematical model and verification, which is used to evaluate and calculate the microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient. This formula fully considers the microwave property score of the modified asphalt material corresponding to the time point , at the time point the corresponding microwave reflection coefficient , the microwave reflection weight , at the time point the corresponding microwave transmission coefficient , the microwave transmission weight , at the time point the corresponding microwave absorption coefficient , the microwave absorption weight , the influencing factor of material microscopic properties , the microwave heating uniformity index , according to the microwave property score of the modified asphalt material corresponding to the time point and the mutual correlation relationship between the above parameters constitutes a functional relationship , this formula can achieve the microwave performance evaluation calculation process for the corresponding microwave reflection coefficient, microwave transmission coefficient, and microwave absorption coefficient. At the same time, by introducing the microwave reflection coefficient, transmission coefficient, and absorption coefficient and assigning corresponding weights to them, this formula for calculating the microwave performance of materials effectively synthesizes various physical properties exhibited by materials during microwave radiation. Different materials have different performances in reflecting, transmitting, and absorbing microwaves. Through the setting of different weights, the formula can adjust the contributions of these physical parameters to microwave performance according to actual situations. The parameters in this formula change over time, enabling the dynamic evaluation of microwave performance at different irradiation time points. This method can timely feedback the performance changes of materials during microwave irradiation. Especially for heat-sensitive materials such as modified asphalt materials, it can more accurately reflect their microwave response characteristics. By introducing the influence factor of material microscopic properties and the microwave heating uniformity index, the formula further considers the microscopic structure and heat distribution of materials, which is of great significance for evaluating whether asphalt materials can be uniformly heated during microwave irradiation and avoiding phenomena such as local overheating. By analyzing the change trend of material microwave performance within the microwave irradiation time interval, it can provide a basis for adaptively optimizing and adjusting microwave irradiation process conditions. The calculation results of this formula can accurately reflect the changes in material performance, helping to judge whether it is necessary to adjust the power of microwave irradiation or add composite agents such as nano-zinc oxide to achieve better modification effects. By optimizing and adjusting microwave irradiation conditions, this formula improves the microwave response characteristics of asphalt materials. It can ensure that under appropriate microwave power and nano-zinc oxide ratio, the microwave performance of modified asphalt materials is improved, ultimately making the modified asphalt materials have better stability and performance, especially more efficient in road construction and maintenance. In addition, by introducing the dynamic analysis of weight coefficients and microwave irradiation time, the formula not only improves the accuracy of evaluation results but also increases the flexibility of optimizing microwave irradiation process conditions. The process adjustment basis is more scientific and reasonable, avoiding the risk of blind adjustment.

[0145] Therefore, from any perspective, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the application documents within the present invention.

[0146] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features invented herein.

Claims

1. A microwave performance improvement system based on activated rubber powder modified asphalt material, characterized in that: Includes the following modules: Microwave irradiation condition design module, used to obtain different microwave irradiation powers and nano zinc oxide compounding ratios and design microwave irradiation conditions to generate different combinations of microwave irradiation process conditions; The performance detection and heating analysis module is used to detect the microwave performance parameters of the activated rubber powder modified asphalt material based on different combinations of microwave irradiation process conditions, so as to obtain the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient corresponding to different microwave irradiation conditions; and analyze the corresponding microwave heating uniformity index during the microwave irradiation process by combining with a thermal imager; The material microscopic impact assessment module is used to analyze the microscopic structural characteristics of the activated rubber powder modified asphalt material based on different microwave irradiation conditions to obtain the corresponding microscopic structural characteristics under different microwave irradiation conditions; Based on the corresponding microstructural characteristics under different microwave irradiation conditions, the microwave performance impact of activated rubber powder modified asphalt materials is evaluated to obtain the corresponding material microscopic performance impact factors under different microwave irradiation conditions; The material microwave performance improvement module is used to evaluate and calculate the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient based on the microwave heating uniformity index and the material microscopic performance influencing factor, so as to obtain the corresponding microwave performance score of the modified asphalt material at each time point; The corresponding microwave irradiation time interval is obtained and the microwave irradiation process conditions are adaptively optimized and adjusted in combination with the microwave performance score of the modified asphalt material to generate the microwave performance improvement adjustment strategy corresponding to the modified asphalt material.

2. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 1 is characterized in that: The microwave irradiation condition design module includes the following functions: Get different microwave irradiation powers, including 600W, 800W and 1200W; Obtain different nano zinc oxide compound ratios, including 1%, 3% and 5%; Microwave irradiation conditions are designed according to different microwave irradiation powers and nano-zinc oxide compounding ratios to generate different combinations of microwave irradiation process conditions.

3. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 1 is characterized in that: The performance detection and heating analysis module includes the following functions: Based on the nano zinc oxide compounding ratios within different combinations of microwave irradiation process conditions, the activated rubber powder modified asphalt material is compounded under irradiation conditions to obtain the corresponding modified asphalt material compounding samples under different microwave irradiation conditions; According to the microwave irradiation power within different combinations of microwave irradiation process conditions, microwave field simulation is performed on the corresponding modified asphalt material composite samples under the corresponding microwave irradiation conditions to simulate the corresponding propagation and action process of microwaves in the modified asphalt material composite samples, and generate the corresponding modified asphalt material microwave simulation field under different microwave irradiation conditions; Conduct microwave distribution statistical analysis on the microwave simulation field of modified asphalt materials under different microwave irradiation conditions to obtain the electric field reflection intensity distribution, magnetic field transmission intensity distribution and energy absorption distribution under different microwave irradiation conditions; The microwave performance parameters are tested on the electric field reflection intensity distribution, magnetic field transmission intensity distribution and energy absorption distribution corresponding to different microwave irradiation conditions, so as to obtain the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient corresponding to different microwave irradiation conditions; The microwave heating uniformity index of the activated rubber powder modified asphalt material during microwave irradiation is monitored and analyzed in real time by combining a thermal imager.

4. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 3 is characterized in that: The irradiation conditions for the activated rubber powder modified asphalt material are compounded based on the nano zinc oxide compounding ratio within the microwave irradiation process conditions of different combinations, including: Based on different combinations of microwave irradiation process conditions, the corresponding nano zinc oxide compound ratio is evenly dispersed on the activated rubber powder modified asphalt material to form a corresponding conductive network, so as to enhance the absorption and loss of the activated rubber powder modified asphalt material corresponding to the microwave irradiation power; Based on the corresponding conductive network, the activated rubber powder modified asphalt material is compounded and stirred under microwave irradiation powers within different combinations of microwave irradiation process conditions, so as to utilize nano zinc oxide to significantly improve the corresponding softening point of the activated rubber powder modified asphalt material, so as to obtain the corresponding modified asphalt material compound samples under different microwave irradiation conditions.

5. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 3 is characterized in that: The microwave heating uniformity index corresponding to the activated rubber powder modified asphalt material during microwave irradiation by real-time monitoring and analysis with a thermal imager includes: The temperature distribution of the activated rubber powder modified asphalt material during microwave irradiation was monitored in real time by combining a thermal imager. The mean and standard deviation of the temperature distribution of the activated rubber powder modified asphalt material during microwave irradiation were statistically analyzed to obtain the temperature mean and standard deviation of the asphalt material during microwave irradiation. Based on the temperature mean and temperature standard deviation of the asphalt material during microwave irradiation, the temperature distribution of the activated rubber powder modified asphalt material during microwave irradiation was quantitatively calculated to obtain the microwave heating uniformity index.

6. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 1 is characterized in that: The material microscopic impact assessment module includes the following functions: Based on different microwave irradiation conditions, the microstructure of the activated rubber powder modified asphalt material was observed using a transmission electron microscope, and the microstructure of the asphalt material corresponding to different microwave irradiation conditions was obtained; The microstructure characteristics of the asphalt material corresponding to the microwave irradiation conditions are analyzed to obtain the microstructure characteristics corresponding to the microwave irradiation conditions; The chemical crystal structure corresponding to the activated rubber powder modified asphalt material is obtained by combining with an X-ray diffractometer, and the chemical bond energy of the activated rubber powder modified asphalt material corresponding to different microwave irradiation conditions is analyzed based on the chemical crystal structure to obtain the chemical bond energy of the material corresponding to different microwave irradiation conditions; Based on the corresponding microstructural characteristics and material chemical bond energy under different microwave irradiation conditions, the microwave performance impact calculation formula of the material microscopic performance is used to evaluate the corresponding activated rubber powder modified asphalt material, so as to obtain the corresponding material microscopic performance impact factor under different microwave irradiation conditions.

7. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 6 is characterized in that: The microstructure characteristic analysis of the asphalt material microstructure under different microwave irradiation conditions includes: The corresponding dispersion state of the rubber powder of the material is obtained by the corresponding microstructure of the asphalt material under different microwave irradiation conditions; Based on the dispersion state of the rubber powder of the material, the number of interface bonds between the asphalt molecules in the microstructure of the corresponding asphalt material under different microwave irradiation conditions is counted to obtain the number of interface bonds between the asphalt molecules and the rubber powder under different microwave irradiation conditions; According to the number of interface bonds between asphalt molecules and rubber powder under different microwave irradiation conditions, the interface bond index between rubber powder and asphalt molecules in the microstructure of the corresponding asphalt material under different microwave irradiation conditions is analyzed to obtain the interface bond index between asphalt molecules and rubber powder under different microwave irradiation conditions; The interface bonding number and interface bonding index between asphalt molecules and rubber powder under different microwave irradiation conditions are taken as the corresponding microstructural properties to obtain the corresponding microstructural properties under different microwave irradiation conditions.

8. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 6 is characterized in that: The specific calculation formula for the influence of the material microscopic properties is: ； In the formula, is the influencing factor of the material microscopic properties, is the number of interfacial bonds between asphalt molecules and rubber powder, is the interface bonding index between asphalt molecules and rubber powder, is an exponential function, is the chemical bond energy of the material, is the Boltzmann constant, It is the temperature corresponding to the activated rubber powder modified asphalt material under the corresponding microwave irradiation.

9. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 1 is characterized in that: The material microwave performance improvement module includes the following functions: By assigning corresponding weights to the corresponding microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient, and using the material microwave performance calculation formula based on the microwave heating uniformity index and the material microscopic performance influencing factor to evaluate the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient at each microwave irradiation time point, the corresponding microwave performance score of the modified asphalt material at each time point is obtained; Obtaining the corresponding microwave irradiation time interval; Based on the microwave irradiation time interval, the microwave performance score of the modified asphalt material corresponding to each time point is analyzed for the irradiation interval change trend, so as to obtain the change trend of the microwave performance of the material corresponding to the microwave irradiation time zone; The microwave irradiation process conditions are adaptively optimized and adjusted based on the changing trend of the microwave performance of the material under the microwave irradiation time zone. If the changing trend of the microwave performance of the material shows a downward trend over time, the corresponding microwave irradiation power within the microwave irradiation process conditions and the corresponding compounding ratio of nano zinc oxide can be automatically increased. Otherwise, no processing is performed to generate a microwave performance improvement adjustment strategy corresponding to the modified asphalt material.

10. The microwave performance improvement system based on activated rubber powder modified asphalt material according to claim 9, characterized in that: The specific calculation formula of the microwave performance of the material is: ； In the formula, For at time point The corresponding microwave performance score of modified asphalt materials is: For at time point The corresponding microwave reflection coefficient is, is the microwave reflection weight, For at time point The corresponding microwave transmission coefficient is, is the microwave transmission weight, For at time point The corresponding microwave absorption coefficient is, is the microwave absorption weight, is the influencing factor of the material microscopic properties, It is the microwave heating uniformity index.

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