Micromechanical characteristics of the asphalt mixture in bending condition

Cui, Yanan; Xing, Yongming; Ni, WenChen

doi:10.1007/s11431-012-5085-1

Cited by 7 publications

(3 citation statements)

References 7 publications

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“…To reduce the volume of microwave heating equipment and improve the microwave power density per unit area of an asphalt road, an oblique horn antenna is utilized in microwave maintenance equipment in practical implementations. The scholars in [ 11 – 17 ] researched the aperture field of the straight horn antenna according to the Maxwell equations. The propagation direction of the microwave is perpendicular to the aperture of the horn, and the microwave power is the largest at the center of the aperture of the horn antenna.…”

Section: Introductionmentioning

confidence: 99%

Modeling the Temperature Field of the Microwave Heating Asphalt Mixture with the Utilization of a Mathematical Model

Zhang

Wang

Guo

2022

Applied Bionics and Biomechanics

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Microwave heating asphalt mixture is an auspicious method since it requires a minimum level of outside intervention. It has been a recent method with some certain advantages over conventional ones. To obtain the temperature field of microwave heating asphalt mixture utilizing an oblique horn antenna, the aperture field of the oblique horn antenna was deduced based on the Maxwell equations. The three-dimensional mathematical model of a microwave heating asphalt mixture was established by introducing a position relation of the horn caliber called an oblique horn antenna, and the calculation results were simplified and verified by experiments. The results showed that the calculated values of the mathematical model tally with the experimental outcomes. The model is found to be accurate and reliable.

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Section: Introductionmentioning

confidence: 99%

Modeling the Temperature Field of the Microwave Heating Asphalt Mixture with the Utilization of a Mathematical Model

Zhang

Wang

Guo

2022

Applied Bionics and Biomechanics

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“…The addition of small amounts of PE‐GMA or PE‐MAH will have a significant increase in elongation at the break while decreasing the tensile strength of EA. The mechanical properties of EA are influenced by the dispersion of the epoxy resin and asphalt 60 . When 0.3% and 0.5% PE‐GMA were added, the elongation at break of 0.3% GEA was 282.5%, and that of 0.5% GEA was 386%, which were 69% and 130% better than that of pure EA, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…The mechanical properties of EA are influenced by the dispersion of the epoxy resin and asphalt. 60 When 0.3% and 0.5% PE-GMA were added, the elongation at break of 0.3% GEA was 282.5%, and that of 0.5% GEA was 386%, which were 69% and 130% better than that of pure EA, respectively. The increase of material tensile strength is usually accompanied by the reduction of elongation at break.…”

Section: Mechanical Propertiesmentioning

confidence: 91%

Modification of epoxy asphalt by low‐doping PE‐GMA and PE‐MAH

Zhu,

Jing,

Luo

et al. 2023

J of Applied Polymer Sci

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Low‐density polyethylene grafted glycidyl methacrylate (PE‐GMA) and low‐density polyethylene maleic anhydride (PE‐MAH) are low‐cost commercialized polymeric materials. Because of their low viscosity, molecular flexibility, solubility parameters, and polarity similar to asphalt or epoxy resins, PE‐GMA and PE‐MAH are added to epoxy asphalt (EA) to improve the compatibility and toughness of EA. The microstructure, viscosity, thermal stability, dynamic mechanical behavior, and mechanical properties of PE‐GMA and PE‐MAH modified EA were investigated. Smaller and more uniformly distributed asphalt particles were formed in mixes with lower PE‐GMA or PE‐MAH content. The polymer dispersity index of the modified EA is 1.1–1.4 lower than that of the pure EA, and compatibility is significantly improved. The reason is that PE‐GMA and PE‐MAH are polyethylene with polar functional groups, and their molecular structure includes both polar functional groups and nonpolar polyethylene chains, improving the compatibility between polar epoxy resin and nonpolar asphalt in EA. In addition, the incorporation of PE‐GMA or PE‐MAH effectively improves the low‐temperature toughness of EA. It also has high damping performance and tan δ, improved the durability and comfort of EA pavement.

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