Microwave performance improving system based on activated rubber powder modified asphalt material

Abstract

The invention relates to the technical field of material performance detection, in particular to a microwave performance improving system based on an activated rubber powder modified asphalt material. The system comprises a microwave irradiation condition design module, a performance detection and heating analysis module, a material microcosmic influence evaluation module and a material microwave performance improvement module, and can obtain different microwave irradiation powers and nano-zinc oxide compounding proportions and carry out microwave irradiation condition design and microwave performance parameter detection. Obtaining a microwave reflection coefficient, a microwave transmission coefficient and a microwave absorption coefficient; a microwave heating uniformity index is monitored in real time, and microstructure characteristic analysis and microwave performance influence evaluation are carried out to obtain a corresponding material microscopic performance influence factor; and performing microwave performance evaluation calculation and adaptive optimization adjustment on the microwave reflection coefficient, the microwave transmission coefficient and the microwave absorption coefficient to generate a microwave performance improvement adjustment strategy corresponding to the modified asphalt material. The microwave performance of the modified asphalt material can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of material performance detection, and in particular to a microwave performance improvement system based on activated rubber powder modified asphalt material. Background Art

[0002] With the rapid development of road construction and transportation industry, asphalt materials are important materials for road paving. The improvement of their performance has a vital impact on the service life, durability and driving comfort of roads. The traditional modification methods of asphalt materials mainly include adding rubber, polymer, mineral powder, etc. to improve their crack resistance, aging resistance and temperature adaptability. In recent years, activated rubber powder, as a new type of modified additive, has attracted widespread attention in the modification of asphalt materials. Activated rubber powder is activated by physical or chemical methods to enhance its compatibility and dispersibility with asphalt, thereby improving the mechanical properties and anti-aging properties of asphalt. Although activated rubber powder has certain advantages in improving asphalt performance, however, in the processing of asphalt materials, the penetration of microwaves is poor, especially in traditional modified asphalt, the dispersion of activated rubber powder is uneven, resulting in unsatisfactory microwave heating effect and difficulty in giving full play to its advantages. Therefore, how to improve the microwave performance of activated rubber powder modified asphalt materials has become a technical problem that needs to be solved urgently. Summary of the invention

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

[0004] To achieve the above purpose, a microwave performance improvement system based on activated rubber powder modified asphalt material 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 microscopic structural characteristics under different microwave irradiation conditions, the microwave performance impact assessment of the activated rubber powder modified asphalt material is performed to obtain the corresponding material microscopic performance impact factors under different microwave irradiation conditions; The material microwave performance improvement module is used to perform microwave performance evaluation and calculation on the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient based on the microwave heating uniformity index and the material microscopic performance influencing factors, so as to obtain the corresponding microwave performance score of the modified asphalt material at each time point; obtain the corresponding microwave irradiation time interval and adaptively optimize and adjust the microwave irradiation process conditions in combination with the microwave performance score of the modified asphalt material, so as to generate the corresponding microwave performance improvement adjustment strategy for the modified asphalt material.

[0005] Furthermore, 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.

[0006] Furthermore, the performance detection and fever analysis module includes the following functions: Based on the nano zinc oxide compounding ratios within different combinations of microwave irradiation process conditions, the active 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.

[0007] Furthermore, the irradiation conditions of the active 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 compounding ratio is evenly dispersed on the active rubber powder modified asphalt material to form a corresponding conductive network, so as to enhance the absorption and loss of the active rubber powder modified asphalt material to the microwave irradiation power; Based on the corresponding conductive network, the active 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 active rubber powder modified asphalt material, so as to obtain the corresponding modified asphalt material compound samples under different microwave irradiation conditions.

[0008] Furthermore, 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.

[0009] Furthermore, the material microscopic impact assessment module includes the following functions: Based on different microwave irradiation conditions and using transmission electron microscopy, the microstructure of the active rubber powder modified asphalt material was observed, 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 active rubber powder modified asphalt material is obtained by combining with an X-ray diffractometer, and the chemical bond energy of the active 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.

[0010] Furthermore, the microstructural characteristics analysis of the microstructure of the asphalt material 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.

[0011] Furthermore, the calculation formula for the influence of the microscopic properties of the material is specifically as follows: ; 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.

[0012] Furthermore, 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.

[0013] Furthermore, the microwave performance calculation formula of the material is specifically as follows: ; 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.

[0014] Beneficial effects of the present invention: The microwave performance improvement system of the activated rubber powder modified asphalt material proposed in the present invention is generally composed of a microwave irradiation condition design module, a performance detection and heating analysis module, a material microscopic impact assessment module, and a material microwave performance improvement module. Compared with the prior art, the beneficial effect of the present application is that the microwave irradiation conditions are systematically optimized by setting microwave irradiation of different frequencies and nano zinc oxide compounding ratios, thereby providing a basis for subsequent experiments and analyses. The frequency of microwave irradiation and the proportion 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 enhancer, can improve the absorption of asphalt materials to microwaves, thereby affecting the modification effect of asphalt. Different microwave irradiation powers will affect the molecular motion 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 subsequent steps. Secondly, through the detection of microwave performance parameters, the influence of different microwave irradiation conditions on modified asphalt materials is comprehensively analyzed. Microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient are important indicators reflecting the microwave radiation response of materials. They can reflect the energy absorption, propagation and reflection of materials in microwave fields. By detecting these parameters, we can fully understand the microwave response characteristics of materials under different irradiation conditions, thereby providing a scientific basis for further optimization of microwave performance. At the same time, real-time monitoring combined with thermal imagers is helpful to analyze the uniformity of thermal distribution of materials during irradiation. Thermal imagers can provide real-time monitoring of surface temperature changes of materials, revealing the unevenness of energy distribution during microwave irradiation, and then calculating the microwave heating uniformity index. A microwave heating process with good uniformity can effectively avoid local overheating or energy waste, improve the overall performance of materials, and can not only accurately evaluate the impact of microwave irradiation on materials, but also provide data support for the optimization of microwave treatment processes.Then, the microstructure of the activated rubber powder modified asphalt material was deeply analyzed by transmission electron microscopy (TEM) to evaluate the effect of microwave irradiation conditions on the changes in the internal structure of the material and its effect on microwave performance. Transmission electron microscopy can provide high-resolution images of the internal structure of the material and can accurately observe the particle morphology, interface structure, lattice arrangement and other microscopic features of the material. Under different microwave irradiation conditions, the microstructure of the material may change, thereby affecting its overall performance. By analyzing these microstructural characteristics, it can be revealed how microwave irradiation conditions affect the structural stability, uniformity and microscopic physical and chemical properties of the material, thereby evaluating its impact on the material performance. The evaluation of microwave performance influencing factors is achieved by combining the microstructural characteristics to analyze their impact on the material's microwave absorption, reflection, transmission and other properties. This evaluation helps to identify the optimal microwave irradiation conditions and provides basic data support for subsequent microwave performance improvements. Finally, through the comprehensive evaluation of the microwave heating uniformity index and the micro-performance influencing factors, the microwave performance of the material is further accurately calculated, and the process is optimized and adjusted in combination with the microwave performance score. The microwave performance score is a quantitative reflection of the performance of modified asphalt materials under different microwave irradiation conditions. It can comprehensively consider factors such as the material's microwave absorption capacity, thermal conductivity, and structural stability, reflecting its overall performance during the microwave irradiation process. By real-time calculation of the microwave performance scores at different time points and combining them with the microwave irradiation time interval, dynamic adjustment of material performance can be achieved to find the optimal microwave irradiation conditions. At the same time, by adaptively optimizing and adjusting the microwave irradiation process conditions, the microwave performance of the modified asphalt material can be continuously improved, thereby improving 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

[0015] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments thereof made with reference to the following drawings: Figure 1 It is a module schematic diagram of the microwave performance improvement system based on the activated rubber powder modified asphalt material of the present invention; Figure 2 for Figure 1 Functional flow diagram of microwave irradiation condition design module; Figure 3 for Figure 1 Schematic diagram of the functional flow of the performance detection and fever analysis module. DETAILED DESCRIPTION

[0016] The technical system of the present invention is described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the present invention.

[0017] In addition, the accompanying drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. Some of the block diagrams shown in the accompanying 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 implemented in one or more hardware modules or integrated circuits, or implemented in different networks and / or processor systems and / or microcontroller systems.

[0018] 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 used only to distinguish one unit from another unit. 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.

[0019] To achieve this, please refer to Figures 1 to 3 The present invention provides a microwave performance improvement system based on activated rubber powder modified asphalt material, the system comprising 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 microscopic structural characteristics under different microwave irradiation conditions, the microwave performance impact assessment of the activated rubber powder modified asphalt material is performed to obtain the corresponding material microscopic performance impact factors under different microwave irradiation conditions; The material microwave performance improvement module is used to perform microwave performance evaluation and calculation on the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient based on the microwave heating uniformity index and the material microscopic performance influencing factors, so as to obtain the corresponding microwave performance score of the modified asphalt material at each time point; obtain the corresponding microwave irradiation time interval and adaptively optimize and adjust the microwave irradiation process conditions in combination with the microwave performance score of the modified asphalt material, so as to generate the corresponding microwave performance improvement adjustment strategy for the modified asphalt material.

[0020] In the embodiment of the present invention, please refer to Figure 1 FIG. 1 is a schematic diagram of a module of a microwave performance improvement system based on activated rubber powder modified asphalt material of the present invention. In this example, the microwave performance improvement system based on activated rubber powder modified asphalt material includes the following modules: S1: 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; In the embodiment of the present invention, a professional microwave power meter with an accuracy of ±10W is used, and its probe is tightly connected to the output port of the microwave generator. The microwave generator is turned on, and the power is accurately adjusted to 600W, 800W and 1200W in turn. 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, the reading stabilizes at 803W and is recorded as 800W (within the allowable error range). At the same time, a high-precision electronic balance with an accuracy of 0.001 grams was used to obtain the compounding ratio of nano-zinc oxide. Several sets of clean weighing papers were prepared, placed on the balance tray, peeled and zeroed. Taking the processing of 500 grams of active rubber powder modified asphalt material sample as an example, for a compounding ratio of 1%, it was calculated that 5 grams of nano-zinc oxide needed to be weighed, and the powder was carefully added with a medicine spoon until the balance reading reached 5 grams. Similarly, 15 grams of nano-zinc oxide corresponding to a compounding ratio of 3% and 25 grams of nano-zinc oxide corresponding to a compounding ratio of 5% were weighed. Subsequently, microwave irradiation powers of 600W, 800W, and 1200W were combined with nano-zinc oxide compounding ratios of 1%, 3%, and 5%, respectively. A total of 9 different combinations of microwave irradiation process conditions were designed, such as "microwave irradiation power of 600W, nano-zinc oxide compounding ratio of 1%", and the parameters of each combination were recorded in detail.

[0021] S2: Performance testing and heating analysis module, used to test 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; In the embodiment of the present invention, by preparing a plurality of activated rubber powder modified asphalt material samples with a mass of 500 grams for each microwave irradiation process condition, using a vector network analyzer to detect microwave performance parameters, placing the samples in a specific test fixture of the analyzer to ensure good contact, setting the microwave frequency, power and other parameters of the analyzer according to different combinations of microwave irradiation process conditions to simulate the actual microwave irradiation environment, the analyzer accurately calculates the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient of the sample under different microwave irradiation conditions by transmitting and receiving microwave signals. For example, in the case of "microwave irradiation power 800W, nanometer Under the condition of "zinc oxide compounding ratio of 3%", the microwave reflection coefficient is 0.2, the microwave transmission coefficient is 0.5, and the microwave absorption coefficient is 0.3 detected by vector network analyzer. At the same time, a thermal imager with a resolution of 640×480 pixels is installed in the microwave irradiation device to make its field of view completely cover the sample. After the microwave irradiation starts, the thermal imager collects the sample temperature distribution image in real time at a speed of 10 frames per second. The microwave heating uniformity index is calculated by special data analysis software. For example, in a certain microwave irradiation experiment, the microwave heating uniformity index is calculated to be 0.92, and finally the corresponding microwave heating uniformity index during the microwave irradiation process is obtained.

[0022] S3: Material microscopic impact assessment module, used to analyze the microscopic structural characteristics of activated rubber powder modified asphalt materials based on different microwave irradiation conditions, so as to obtain the corresponding microscopic structural characteristics under different microwave irradiation conditions; to evaluate the microwave performance impact of activated rubber powder modified asphalt materials based on the corresponding microscopic structural characteristics under different microwave irradiation conditions, so as to obtain the corresponding material microscopic performance impact factors under different microwave irradiation conditions; In an embodiment of the present invention, the activated rubber powder modified asphalt material sample treated under different microwave irradiation conditions is cut into thin slices with a thickness of about 50 nanometers for transmission electron microscope (TEM) observation, the thin slice sample is placed on the TEM sample stage, and in a high vacuum environment, the electron gun emits an electron beam to penetrate the sample, the TEM acceleration voltage is adjusted to 200 kV, the magnification is adjusted to 10,000 times, the microstructure image is clearly obtained, and the image is grayed and denoised using image processing software to segment the asphalt phase, the active rubber powder phase and the interface between the two, the number of interface bonds between the asphalt molecules and the rubber powder is measured, and the corresponding interface bonding index is statistically analyzed. For example, under the conditions of microwave irradiation power of 800 W and a nano zinc oxide compounding ratio of 3%, the software analysis shows that the number of interface bonds is 180 and the interface bonding index is 6. A mathematical model is established to correlate the microstructure characteristics with the material properties, and finally the corresponding material microscopic performance influencing factors under different microwave irradiation conditions are calculated.

[0023] S4: Material microwave performance improvement module, which is used to perform microwave performance evaluation and calculation on the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient based on the microwave heating uniformity index and the material microscopic performance influencing factors, so as to obtain the corresponding microwave performance score of the modified asphalt material at each time point; obtain the corresponding microwave irradiation time interval and adaptively optimize and adjust the microwave irradiation process conditions in combination with the microwave performance score of the modified asphalt material, so as to generate the corresponding microwave performance improvement adjustment strategy for the modified asphalt material.

[0024] In an embodiment of the present invention, the corresponding microwave performance evaluation calculation is 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 microscopic 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 first minute, the microwave reflection coefficient is measured to be 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 microscopic performance influence factor is 1.2. Substituting them into the formula, the microwave performance score of the modified asphalt material at this time point is 2.512, thereby obtaining the corresponding microwave performance score of the modified asphalt material at each time point. At the same time, the microwave irradiation time interval is set to 10 minutes, and the microwave performance score of the modified asphalt material is recorded at intervals of 1 minute. If the performance score drops within a certain period of time, such as the score drops from 0.55 to 0.5 within 6-8 minutes, the microwave irradiation process conditions are adjusted, such as appropriately increasing the microwave irradiation power and optimizing the compounding ratio of nano-zinc oxide. The experiment is repeated, and the best microwave performance improvement adjustment strategy is determined according to the new performance score, such as increasing the microwave irradiation power from 800W to 900W and increasing the compounding ratio of nano-zinc oxide from 3% to 4%. Finally, the microwave performance improvement adjustment strategy corresponding to the modified asphalt material is generated.

[0025] Furthermore, 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.

[0026] As an embodiment of the present invention, refer to Figure 2 As shown, Figure 1 Schematic diagram of the functional flow of the microwave irradiation condition design module in the embodiment. In this embodiment, the microwave irradiation condition design module includes the following functions: S11: obtaining different microwave irradiation powers, including 600 W, 800 W and 1200 W; In an embodiment of the present invention, different microwave irradiation powers are obtained by using a professional microwave power meter. The meter has an accuracy of ±10W and can accurately measure the power output by the microwave device. The probe of the microwave power meter is connected to the output port of the microwave generator to ensure a tight connection. The microwave generator is turned on and the power is adjusted to 600W, 800W, 1200W, 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 microwave generator power is adjusted to 600W, the meter reading stabilizes at 602W and is recorded as 600W (the measurement error is within the allowable range). Through such operations, different microwave irradiation powers required for subsequent experiments can be accurately obtained.

[0027] S12: Obtain different compounding ratios of nano zinc oxide, including 1%, 3% and 5%; In an embodiment of the present invention, different nano-zinc oxide compounding ratios are obtained by using a high-precision electronic balance. The accuracy of the electronic balance is 0.001 grams, which can meet the requirements of accurately weighing nano-zinc oxide. A plurality of clean weighing papers are prepared and placed on the electronic balance tray respectively, peeled and zeroed, and the required mass of nano-zinc oxide is calculated according to different nano-zinc oxide compounding ratios. For example, for a compounding ratio of 1%, assuming that the mass of the active rubber powder modified asphalt material sample to be processed is 500 grams, 5 grams of nano-zinc oxide (500×1% = 5 grams) is required to be weighed. The nano-zinc oxide powder is carefully added to the weighing paper using a medicine spoon, and the electronic balance reading is observed until the target mass is reached. In the same way, the nano-zinc oxide powders corresponding to the compounding ratios of 3% and 5% are respectively weighed. For example, for a compounding ratio of 3%, 15 grams of nano-zinc oxide is weighed; for a compounding ratio of 5%, 25 grams of nano-zinc oxide is weighed, so as to obtain different nano-zinc oxide compounding ratios for subsequent experiments.

[0028] S13: 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.

[0029] In an embodiment of the present invention, microwave irradiation conditions are designed based on different microwave irradiation powers obtained previously and different nano-zinc oxide compounding ratios obtained, so as to combine microwave irradiation powers of 600W, 800W, and 1200W with nano-zinc oxide compounding ratios of 1%, 3%, and 5%, respectively. For example, a microwave irradiation power of 600W is combined with a nano-zinc oxide compounding ratio of 1% to design a microwave irradiation process condition; 600W is combined with 3% to form another process condition, and so on, generating a total of 9 different combinations of microwave irradiation process conditions. During the design process, the specific parameters corresponding to each combination are clearly recorded, such as "microwave irradiation power of 600W, nano-zinc oxide compounding ratio of 1%", to provide an accurate process condition basis for the subsequent microwave performance improvement experiment on the active rubber powder modified asphalt material.

[0030] Furthermore, the performance detection and fever analysis module includes the following functions: Based on the nano zinc oxide compounding ratios within different combinations of microwave irradiation process conditions, the active 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.

[0031] As an embodiment of the present invention, refer to Figure 3 As shown, Figure 1 Schematic diagram of the functional flow of the performance detection and fever analysis module in the embodiment. In this embodiment, the performance detection and fever analysis module includes the following functions: S21: Compounding the active rubber powder modified asphalt material under irradiation conditions based on the nano zinc oxide compounding ratios within different combinations of microwave irradiation process conditions to obtain compounded samples of modified asphalt material corresponding to different microwave irradiation conditions; In an embodiment of the present invention, a plurality of groups of active rubber powder modified asphalt material samples are prepared, each group having a mass of 500 grams, and different combinations of microwave irradiation process conditions are constructed, such as microwave irradiation powers of 600 W, 800 W, and 1200 W, respectively, and nano zinc oxide compounding ratios of 1%, 3%, and 5%, respectively, to form 9 different condition combinations, and by using a high-precision electronic scale, the nano zinc oxide powder is accurately weighed in proportion, such as 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 surface of the active rubber powder modified asphalt material sample, and then a high-speed stirring device is used to adjust the stirring speed to 800 revolutions per minute, and the material is stirred to make the nano zinc oxide evenly dispersed in the active rubber powder modified asphalt material, and the irradiation conditions are compounded to obtain corresponding modified asphalt material compound samples under different microwave irradiation conditions. For example, under the conditions of microwave irradiation power of 800 W and a nano zinc oxide compounding ratio of 3%, after 10 minutes of stirring, the materials are evenly mixed to obtain the corresponding modified asphalt material compound samples.

[0032] S22: performing microwave field simulation on the modified asphalt material composite sample under the corresponding microwave irradiation conditions according to the microwave irradiation power within the different combinations of microwave irradiation process conditions, so as to simulate the corresponding propagation and action process of microwaves in the modified asphalt material composite sample, and generate the corresponding modified asphalt material microwave simulation field under different microwave irradiation conditions; In an embodiment of the present invention, by using professional microwave field simulation software, such as COMSOL Multiphysics, microwave field simulation is performed on the composite samples of modified asphalt materials under different combinations of microwave irradiation process conditions. In the software, according to the actual microwave irradiation power, such as 600W, 800W, and 1200W, the microwave source parameters are accurately set, and the geometric model of the composite sample of the modified asphalt material is imported. The model is constructed based on the actual size of the sample to ensure the accuracy of the simulation, and the propagation parameters of the microwave in the material, such as the dielectric constant and the magnetic permeability, are set. These parameters are obtained through preliminary experimental measurements, and the simulation program is started. The software begins to simulate the propagation and action process of microwaves in the composite 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 the microwave inside the material, the electromagnetic field changes caused by the interaction with the material, etc., and finally generates the corresponding microwave simulation field of the modified asphalt material under different microwave irradiation conditions.

[0033] S23: performing microwave distribution statistical analysis on the microwave simulation field of the modified asphalt material corresponding to different microwave irradiation conditions, so as to obtain the electric field reflection intensity distribution, magnetic field transmission intensity distribution and energy absorption distribution corresponding to different microwave irradiation conditions; In an embodiment of the present invention, by using the data analysis tool provided by the simulation software, a statistical analysis of the microwave distribution is performed on the microwave simulation field of the modified asphalt material corresponding to different microwave irradiation conditions. In the simulation field, multiple monitoring points are selected, and the electric field reflection intensity, magnetic field transmission intensity and energy absorption values ​​of these points are calculated by the software. For example, in the simulation field with a microwave irradiation power of 800W, 100 monitoring points are evenly selected inside the material, and the software calculates the electric field reflection intensity of each point according to the simulation results, and then these data are sorted to obtain the electric field reflection intensity distribution. In the same way, the magnetic field transmission intensity distribution and the energy absorption distribution are statistically analyzed. Through such analysis, the distribution of microwaves in the composite samples of modified asphalt materials under different microwave irradiation conditions can be clearly understood, and finally the electric field reflection intensity distribution, magnetic field transmission intensity distribution and energy absorption distribution corresponding to different microwave irradiation conditions can be obtained.

[0034] S24: performing microwave performance parameter detection on the electric field reflection intensity distribution, the magnetic field transmission intensity distribution and the energy absorption distribution corresponding to different microwave irradiation conditions, so as to obtain the microwave reflection coefficient, the microwave transmission coefficient and the microwave absorption coefficient corresponding to different microwave irradiation conditions; In an embodiment of the present invention, microwave performance parameter detection is performed on the electric field reflection intensity distribution, magnetic field transmission intensity distribution and energy absorption distribution corresponding to different microwave irradiation conditions according to microwave propagation theory and simulated field data, so as to calculate the microwave reflection coefficient using a formula, such as reflection coefficient = reflected electric field intensity / incident electric field intensity. The microwave reflection coefficient under different microwave irradiation conditions is calculated according to the electric field reflection intensity distribution data in the simulated field and the set incident electric field intensity. For the microwave transmission coefficient, the formula of transmission coefficient = transmission magnetic field intensity / incident magnetic field intensity is used in combination with the magnetic field transmission intensity distribution data for calculation. The microwave absorption coefficient is calculated through the energy absorption distribution data, such as microwave absorption coefficient = 1 / energy absorption distribution value. For example, under the condition of a microwave irradiation power of 800 W, the microwave reflection coefficient is calculated to be 0.2, the microwave transmission coefficient is 0.5, and the microwave absorption coefficient is 0.3, and finally the microwave performance parameters corresponding to different microwave irradiation conditions are obtained.

[0035] S25: Real-time monitoring and analysis of the microwave heating uniformity index of the activated rubber powder modified asphalt material during microwave irradiation by combining a thermal imager.

[0036] 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 rate 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. Furthermore, the irradiation conditions of the active 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 compounding ratio is evenly dispersed on the active rubber powder modified asphalt material to form a corresponding conductive network, so as to enhance the absorption and loss of the active rubber powder modified asphalt material to the microwave irradiation power; In an embodiment of the present invention, a plurality of groups of active 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 active rubber powder modified asphalt material. On the surface of the asphalt material sample, a high-speed stirring equipment 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 active 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 active 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.

[0037] Preferably, based on the corresponding conductive network, the active 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 active rubber powder modified asphalt material, so as to obtain the corresponding modified asphalt material compound samples under different microwave irradiation conditions.

[0038] In an embodiment of the present invention, a compound stirring operation is performed in a reactor with temperature control and stirring functions, and an active rubber powder modified asphalt material sample that has been uniformly dispersed with nano zinc oxide is placed in the reactor. The microwave irradiation power is set according to different combinations of microwave irradiation process conditions. For example, in one set of experiments, the microwave irradiation power is set to 800W, the stirring device of the reactor is turned on, the stirring speed is set to 500 revolutions per minute, and the microwave irradiation equipment is turned on at the same time to irradiate and stir the material. During the stirring process, the nano zinc oxide and the active rubber powder modified asphalt material fully interact with each other, significantly improving the softening point of the material. The temperature sensor monitors the material temperature in real time. When the temperature reaches the set softening point detection temperature (such as 100°C), stop microwave irradiation and stirring, take out the material sample, and use the ring and ball softening point tester to measure the softening point of the material. For example, under the conditions of microwave irradiation power of 800W and 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 greater than 90°C, for example, 95°C, and the corresponding modified asphalt material compound sample under the microwave irradiation condition is obtained. This operation is performed on the samples under different microwave irradiation conditions to obtain a series of modified asphalt material compound samples corresponding to different microwave irradiation conditions.

[0039] Furthermore, 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. In an embodiment of the present invention, a sample of activated rubber powder modified asphalt material is placed at a specific position in a microwave irradiation device to ensure that the sample can be evenly irradiated with microwaves. A thermal imager is a high-precision device with a resolution of 640×480 pixels, and is 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 start of microwave irradiation, the thermal imager is calibrated to ensure the accuracy of temperature measurement. After the microwave irradiation is started, the thermal imager collects temperature distribution images of the sample during the microwave irradiation process in real time at a rate 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 beginning to the end of irradiation, generates a series of temperature distribution images, and clearly presents the temperature changes of different parts of the sample at different times.

[0040] Preferably, the mean and standard deviation of the temperature distribution corresponding to the activated rubber powder modified asphalt material during the microwave irradiation process are statistically analyzed to obtain the temperature mean and temperature standard deviation corresponding to the asphalt material during the microwave irradiation process; In an embodiment of the present invention, a temperature distribution image previously collected by a thermal imager is processed by utilizing specialized data analysis software. First, the temperature data in the image is extracted and converted into a digital format. For each temperature distribution image, the average temperature value of all pixel points is calculated to obtain the temperature value of the asphalt material at that moment. The temperature values ​​at all moments during the entire microwave irradiation process are summarized, and then the average value of these temperature values ​​is calculated as the corresponding temperature mean value of the asphalt material during the microwave irradiation process. At the same time, a statistical method is used to calculate the standard deviation of these temperature values, i.e., the temperature standard deviation. 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 temperature level and temperature fluctuation degree of the asphalt material during the microwave irradiation process. Finally, the corresponding temperature mean value and temperature standard deviation of the asphalt material during the microwave irradiation process are obtained.

[0041] Preferably, the temperature distribution corresponding to the activated rubber powder modified asphalt material during microwave irradiation is quantitatively calculated for heating uniformity based on the temperature mean and temperature standard deviation corresponding to the asphalt material during microwave irradiation to obtain the microwave heating uniformity index.

[0042] In an embodiment of the present invention, the microwave heating uniformity index is calculated according to a specific quantitative calculation formula for heating uniformity, which is: microwave heating uniformity index = 1-(temperature standard deviation / temperature mean). The temperature mean and temperature standard deviation corresponding to the asphalt material in the microwave irradiation process obtained previously are substituted into the formula. For example, when the temperature mean is 70°C and the temperature standard deviation is 4°C, the formula is substituted to obtain: microwave heating uniformity index = 1-(4 / 70)≈0.943. Through such calculation, the heating uniformity of the activated rubber powder modified asphalt material in the microwave irradiation process is quantified. The closer the microwave heating uniformity index is to 1, the more uniform the temperature distribution of the material in the microwave irradiation process is, which provides key data for evaluating the impact of microwaves on material properties.

[0043] Furthermore, the material microscopic impact assessment module includes the following functions: Based on different microwave irradiation conditions and using transmission electron microscopy, the microstructure of the active rubber powder modified asphalt material was observed, and the microstructure of the asphalt material corresponding to different microwave irradiation conditions was obtained; In an embodiment of the present invention, a plurality of groups of active rubber powder modified asphalt material samples are prepared, and different microwave irradiation conditions are set respectively, and 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, to form 9 different condition combinations, and the samples are cut into thin slices with a thickness of about 50 nanometers for transmission electron microscope (TEM) observation, and the thin slice samples are placed on the sample stage of the TEM. In a high vacuum environment, an electron beam is emitted by an electron gun to penetrate the sample, and the microstructure images of the active rubber powder modified asphalt material under different microwave irradiation conditions are clearly obtained by adjusting the acceleration voltage of the TEM to 200 kV and the magnification to 10,000 times. For example, under the conditions of a microwave irradiation power of 600 W and a compounding ratio of nano zinc oxide of 3%, the TEM image shows that the active rubber powder particles are dispersed more evenly in the asphalt matrix, and the fusion of the rubber powder particle boundaries with the asphalt matrix is ​​good, and finally the microstructures of the asphalt material corresponding to different microwave irradiation conditions are obtained.

[0044] Preferably, 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; In an embodiment of the present invention, image processing software is used to analyze the microstructural images of asphalt materials under different microwave irradiation conditions previously obtained, and the images are first grayed and denoised to enhance the recognition of microstructural features. The asphalt phase, active rubber powder phase and the interface between the two are segmented by setting appropriate thresholds, and the number of interfacial bonds between asphalt molecules and rubber powder is measured, and the corresponding interfacial bonding index is statistically analyzed. For example, under the conditions of 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. These data are used as microstructural characteristics, and finally the corresponding microstructural characteristics under different microwave irradiation conditions are obtained.

[0045] Preferably, the chemical crystal structure corresponding to the active rubber powder modified asphalt material is obtained by combining with an X-ray diffractometer, and the chemical bond energy analysis of the active rubber powder modified asphalt material corresponding to different microwave irradiation conditions is performed based on the chemical crystal structure to obtain the chemical bond energy of the material corresponding to different microwave irradiation conditions; In an embodiment of the present invention, a sample of an active rubber powder modified asphalt material is placed on a sample holder of an 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 the scanning is performed at a scanning speed of 2° / min within an angle range of 5°-80°. The X-rays interact with the chemical crystals in the sample to produce a diffraction pattern, and the chemical crystal structure of the material is determined by analyzing the position, intensity and width of the peaks in the diffraction pattern. Based on the chemical crystal structure, chemical bond energy calculation software is used to calculate the bond energy of each chemical bond in the active rubber powder modified asphalt material under different microwave irradiation conditions in combination with information such as crystal structure parameters and atomic coordinates. 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 CC bond energy is 347 kJ / mol, the C=C bond energy is 614 kJ / mol, etc., and finally the corresponding material chemical bond energy under different microwave irradiation conditions is obtained.

[0046] Preferably, the microwave performance impact of the corresponding activated rubber powder modified asphalt material is evaluated based on the corresponding microstructural characteristics and material chemical bond energy under different microwave irradiation conditions using the material microscopic performance impact calculation formula to obtain the corresponding material microscopic performance impact factor under different microwave irradiation conditions.

[0047] In an embodiment of the present invention, by obtaining the specific temperature and the corresponding Boltzmann constant (this constant is a constant used in the art to convert chemical bond energy into temperature-related thermal energy terms) of the activated rubber powder modified asphalt material under the corresponding microwave irradiation, and combining the interface bonding number between the asphalt molecules and the rubber powder, the interface bonding index between the asphalt molecules and the rubber powder, and the material chemical bond energy, a suitable material microscopic performance impact calculation formula is constructed to perform microwave performance impact assessment calculation to obtain the corresponding material microscopic performance impact factor under different microwave irradiation conditions. In addition, the material microscopic performance impact calculation formula can also use any performance impact assessment algorithm in the art to replace the microwave performance impact assessment process, and is not limited to the material microscopic performance impact calculation formula.

[0048] Furthermore, the microstructural characteristics analysis of the microstructure of the asphalt material 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; In an embodiment of the present invention, a plurality of groups of identical asphalt material samples are prepared in a laboratory and processed under different microwave irradiation conditions 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, to form 9 different combinations of microwave irradiation conditions, and the microstructure of the treated asphalt material samples is observed by using a scanning electron microscope (SEM), so that the sample is fixed on the sample stage of the SEM, and an electron beam is emitted by an electron gun in a high vacuum environment. The electron beam interacts with the sample to generate a secondary electron image, and the magnification of the SEM is adjusted to 5000 times to clearly observe the rubber powder particles in the microstructure of the asphalt material, and the dispersion state of the rubber powder of the material is determined according to the distribution uniformity, agglomeration and other characteristics of the rubber powder particles in the image. For example, under the conditions of a microwave irradiation power of 800 W and a compounding ratio of nano zinc oxide of 3%, it can be seen from the SEM image that the rubber powder particles are relatively evenly dispersed in the asphalt matrix, with less agglomeration, and finally the corresponding dispersion state of the rubber powder of the material is obtained.

[0049] Preferably, 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; In an embodiment of the present invention, based on the previously obtained dispersion state of the material rubber powder, the SEM images of the microstructure of the asphalt material under different microwave irradiation conditions are analyzed by using image processing software. In the software, the image is first grayed to enhance the contrast between the asphalt molecules and the rubber powder. Then, by setting a suitable threshold, the asphalt molecules and the rubber powder are segmented in the image. A specific algorithm, such as an edge detection algorithm, is used to identify the interface between the asphalt molecules and the rubber powder. Each interface is marked and the number of interfaces is counted to obtain the number of interfacial bonds between the asphalt molecules and the 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%, the number of interfacial bonds between the asphalt molecules and the rubber powder is counted as 150 after analysis by the image processing software. Finally, the number of interfacial bonds between the asphalt molecules and the rubber powder under different microwave irradiation conditions is obtained.

[0050] Preferably, according to the number of interface bonds between asphalt molecules and rubber powder under different microwave irradiation conditions, an interface 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 to obtain the interface bonding index between asphalt molecules and rubber powder under different microwave irradiation conditions; In an embodiment of the present invention, an interface bonding index analysis is performed between the rubber powder and the asphalt molecules according to the number of interface bonding between the asphalt molecules and the rubber powder obtained under different microwave irradiation conditions and other performance parameters of the material, such as the tensile strength and hardness of the material, to establish a mathematical model: interface bonding index = number of interface bonding × tensile strength of material / hardness of material. For example, under certain microwave irradiation conditions, the number of interface bonding between the asphalt molecules and the rubber powder is 200, the tensile strength of the material is 5 MPa, and the hardness of the material is 200 HBW. The interface bonding index calculated by substituting into the model is 5. By performing such calculations on samples under different microwave irradiation conditions, the interface bonding index between the asphalt molecules and the rubber powder under different microwave irradiation conditions is finally obtained.

[0051] Preferably, the interface bonding number and interface bonding index between asphalt molecules and rubber powder under different microwave irradiation conditions are used as corresponding microstructural properties to obtain the corresponding microstructural properties under different microwave irradiation conditions.

[0052] In an embodiment of the present invention, the number of interface bonds and the interface 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 to associate and store different microwave irradiation conditions (including power and time) with the corresponding number of interface bonds and the interface bonding index. For example, it is recorded in the database that when the microwave irradiation power is 800 W and the compounding ratio of nano-zinc oxide is 3%, the number of interface bonds is 180 and the interface 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 interface bonds is 220 and the interface 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.

[0053] Furthermore, the calculation formula for the influence of the microscopic properties of the material is specifically as follows: ; 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.

[0054] The present invention obtains a material microscopic performance influence calculation formula by using a specific mathematical model and verification, which is used to evaluate the microwave performance influence of the corresponding activated rubber powder modified asphalt material. The formula fully considers the material microscopic performance influence factors. , the number of interfacial bonds between asphalt molecules and rubber powder , the interface bonding index between asphalt molecules and rubber powder , exponential function , chemical bond energy of materials , the Boltzmann constant , the temperature of activated rubber powder modified asphalt material under corresponding microwave irradiation , according to the factors affecting the microscopic properties of materials The correlation between the above parameters constitutes a functional relationship , this formula can realize the evaluation process of microwave performance of corresponding activated rubber powder modified asphalt materials. At the same time, the calculation formula of the microscopic performance influence of the material can quantify the microscopic performance changes of the material under different microwave irradiation conditions. By calculating the microscopic performance influence factor, 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 performance of asphalt materials can be evaluated, and data support can be provided for further optimizing the microwave performance of the material. The formula includes the number of interface bonds and the interface bond index between asphalt molecules and rubber powder. These two parameters can reflect the microscopic interface characteristics of the material. By analyzing these interface effects, we can better understand the changes in the physical and chemical properties of rubber powder modified asphalt materials, especially the performance under microwave irradiation, which helps to optimize the material formulation and improve the stability and durability of asphalt materials. The chemical bond energy is introduced in the formula, which helps to quantify the effect of microwave irradiation on the chemical bonds between material molecules. Chemical bond energy is an important determinant of material properties. Considering the changes in chemical bonds of materials under different microwave irradiation conditions, it can help analyze the physical properties of materials (such as thermal stability, mechanical properties, etc.) and their sensitivity to microwave irradiation. Secondly, the temperature parameter in the formula introduces the effect of temperature on microscopic properties. The temperature of the material under microwave irradiation may significantly affect its microstructure and performance. Temperature is closely related to chemical reaction rate and molecular motion. Therefore, combined with the analysis of temperature changes, the response of the material under different microwave irradiation conditions can be more comprehensively evaluated. By quantifying the effect of microwave irradiation on active rubber powder modified asphalt materials, this formula provides theoretical support for the application of microwave technology in materials engineering. It helps optimize microwave irradiation conditions and improve the modification effect of asphalt materials, thereby improving the performance of asphalt, especially in road engineering.

[0055] Furthermore, 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; In an embodiment of the present invention, in a laboratory environment, for a modified asphalt material, weights are assigned to the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient obtained by previous analysis. For example, based on the needs of the material in actual applications and previous experimental data, the microwave reflection coefficient weight is set to 0.3, the microwave transmission coefficient weight is set to 0.2, and the microwave absorption coefficient weight 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 microscopic properties are obtained. By using a microwave testing 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 a microwave heating uniformity index (calculated by measuring the temperature distribution of the material under microwave irradiation by a temperature sensor) constitute a suitable material microstructure. Wave performance calculation formula, for example, modified asphalt material microwave performance score = microwave heating uniformity index × material microscopic performance influence factor × 1 / (microwave reflection coefficient × 0.3 + microwave transmission coefficient × 0.2 + microwave absorption coefficient × 0.5), for example, at the 1st minute of microwave irradiation time point, the microwave reflection coefficient was measured to be 0.2, the microwave transmission coefficient was 0.1, the microwave absorption coefficient was 0.7, the microwave heating uniformity index was 0.9, and the material microscopic performance influence factor was 1.2. Substituting into the formula, the microwave performance score of the modified asphalt material at this time point is 2.512, and finally the corresponding microwave performance score of the modified asphalt material at each time point is obtained. In addition, the material microwave performance calculation formula can also use any performance detection algorithm in this field to replace the microwave performance evaluation calculation process, and is not limited to the material microwave performance calculation formula.

[0056] Preferably, obtaining a corresponding microwave irradiation time interval; In an embodiment of the present invention, before the start of the experiment, a timer or a microwave irradiation equipment control system with a timing function is used to, for example, set the total duration of microwave irradiation to 10 minutes. During these 10 minutes, microwave performance-related data are measured and calculated at certain time intervals, such as every 1 minute, that is, the previous operations are performed to obtain the corresponding microwave performance scores of the modified asphalt material at different time points. During the entire 10-minute microwave irradiation process, other experimental conditions, such as ambient temperature and humidity, are kept constant to ensure the accuracy and comparability of the experimental results, and finally the corresponding microwave irradiation time interval is obtained.

[0057] Preferably, 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 microwave performance change trend of the material corresponding to the microwave irradiation time zone; In an embodiment of the present invention, after the microwave irradiation is completed, the microwave performance score of the modified asphalt material corresponding to each time point is collected, and a line graph is drawn using data analysis software, such as Origin, with the microwave irradiation time as the horizontal axis and the microwave performance score of the modified asphalt material as the vertical axis. By observing the trend of the line graph, the changing 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 drawn 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, maintained at around 0.42; within 8-10 minutes, the score decreases slightly, from 0.42 to 0.40, thereby concluding that in the 10-minute microwave irradiation time zone, the microwave performance of the material first increases, then stabilizes, and then slightly decreases, and finally the corresponding microwave performance change trend of the material in the microwave irradiation time zone is obtained.

[0058] Preferably, the microwave irradiation process conditions are adaptively optimized and adjusted based on the corresponding trend of changes in the microwave performance of the material in the microwave irradiation time zone. If the trend of changes in 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.

[0059] In an embodiment of the present invention, the microwave irradiation process conditions are adaptively optimized and adjusted according to the corresponding trend of change in the microwave performance of the material under the microwave irradiation time zone. If the trend of change in the microwave performance of the material shows a downward trend over time, such as the performance score has decreased within 8-10 minutes as previously found, at this time, through the control interface of the microwave irradiation equipment, manually or through a preset automation 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 to increase its mass share in the modified asphalt material from the original 3% to 3.5%. If the trend of change in the microwave performance of the material does not show a downward trend, such as in a stable stage or an increasing stage, the microwave irradiation process conditions are not changed. In this way, a microwave performance improvement adjustment strategy corresponding to the modified asphalt material is generated to improve the performance of the material under microwave irradiation.

[0060] Furthermore, the microwave performance calculation formula of the material is specifically as follows: ; 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.

[0061] The present invention obtains a material microwave performance calculation formula by using a specific mathematical model and verifying it, which is used to evaluate and calculate the microwave performance of the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient. The formula fully considers the microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient at the time point. The corresponding microwave performance score of modified asphalt materials , at the time point The corresponding microwave reflection coefficient is , microwave reflection weight , at the time point The corresponding microwave transmission coefficient is , microwave transmission weight , at the time point The corresponding microwave absorption coefficient is , microwave absorption weight , factors affecting material microscopic properties , Microwave Heating Uniformity Index , according to the time point The corresponding microwave performance score of modified asphalt materials The correlation between the above parameters constitutes a functional relationship , the formula can realize the microwave performance evaluation calculation process of the corresponding microwave reflection coefficient, microwave transmission coefficient and microwave absorption coefficient. At the same time, the microwave performance calculation formula of the material effectively integrates the various physical properties of the material during microwave radiation by introducing microwave reflection coefficient, transmission coefficient and absorption coefficient and assigning corresponding weights to them. Different materials have different performances in reflection, transmission and absorption of microwaves. The formula can adjust the contribution of these physical parameters to microwave performance according to actual conditions by setting different weights. The parameters in the formula change with time, so that the microwave performance can be dynamically evaluated at different irradiation time points. This method can timely feedback the performance changes of the material during microwave irradiation, especially for heat-sensitive materials such as modified asphalt materials, which can more accurately reflect its microwave response characteristics. By introducing the material microscopic performance influencing factor and microwave heating uniformity index, the formula further considers the microstructure and thermal distribution of the material, which is of great significance for evaluating whether the asphalt material can be evenly heated during microwave irradiation and avoiding local overheating. By analyzing the changing trend of the microwave performance of the material within the microwave irradiation time interval, a basis can be provided for adaptive optimization and adjustment of the microwave irradiation process conditions. The calculation results of this formula can accurately reflect the changes in material properties and help determine whether it is necessary to adjust the microwave irradiation power or add composite agents such as nano zinc oxide to achieve better modification effects. This formula improves the microwave response characteristics of asphalt materials by optimizing and adjusting microwave irradiation conditions. It can ensure that the microwave performance of modified asphalt materials is improved under appropriate microwave power and nano zinc oxide ratios, and ultimately make the modified asphalt materials have better stability and performance, especially more efficient in pavement construction and maintenance. In addition, by introducing dynamic analysis of weight coefficients and microwave irradiation time, the formula not only improves the accuracy of the evaluation results, but also increases the flexibility of optimizing microwave irradiation process conditions. The basis for process adjustment is more scientific and reasonable, avoiding the risk of blind adjustment.

[0062] Therefore, the embodiments should be regarded as illustrative and non-restrictive from all points, and the scope of the present invention is limited by the appended claims rather than the above description, and it is therefore intended that all changes falling within the meaning and range of equivalent elements of the application documents are included in the present invention.

[0063] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may 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 the embodiments shown herein, but should conform to the widest 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 active 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 of the active 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 compounding ratio is evenly dispersed on the active rubber powder modified asphalt material to form a corresponding conductive network, so as to enhance the absorption and loss of the active rubber powder modified asphalt material to the microwave irradiation power; Based on the corresponding conductive network, the active 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 active 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 and using transmission electron microscopy, the microstructure of the active rubber powder modified asphalt material was observed, 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 active rubber powder modified asphalt material is obtained by combining with an X-ray diffractometer, and the chemical bond energy of the active 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, N is the number of interface bonds between asphalt molecules and rubber powder, B is the interface bond index between asphalt molecules and rubber powder, exp is the exponential function, E r is the chemical bond energy of the material, K b is the Boltzmann constant, and T is the temperature of 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 to obtain the microwave performance change trend 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: ； Where S(t) is the microwave performance score of the modified asphalt material at time point t, R(t) is the microwave reflection coefficient at time point t, and W R is the microwave reflection weight, T(t) is the microwave transmission coefficient corresponding to the time point t, W T is the microwave transmission weight, A(t) is the microwave absorption coefficient corresponding to the time point t, 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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