Mechanical Characterization of Asphalt Mixtures Based on Polymeric Resin and Thixotropic Filler as a Substitute for Bitumen
Sprache des Titels:
Englisch
Original Kurzfassung:
Transportation infrastructure relies heavily on asphalt pavement, but conventional bitumenbased
mixtures present several drawbacks. This study assesses the potential of poly(methyl methacrylate)
resins and thixotropic fillers as substitutes for bitumen to improve pavement performance. The
research concentrates on enhancing current formulations that incorporate a thermosetting polymer
and mineral (stiffening) fillers, with the objective of increasing durability, extending the product
life cycle, and optimizing raw material usage. Utilizing dynamic thermomechanical analyses, the
viscoelastic characteristics of resins are examined, with a focus on their mechanical properties? dependence
on load frequency and temperature. The investigation also evaluates the impact of different
fillers, including silica sand, silica dust, and basalt sand, on viscoelastic behavior and load-bearing
capacity, offering valuable insights into the relationships between material structure and properties.
The findings reveal that stiffness is predominantly affected by the quantity of silica dust, whereas
the force plateau depends on the amount of sand. This study contributes crucial information for the
development of more sustainable and robust pavement materials for future applications.
Forschungs-