Abstract
Abstract Polymer fiber reinforcement can elevate the pavement performance indicators of asphalt concrete, including low temperature crack resistance, high temperature stability, and water stability. Fiber-reinforced asphalt concrete (FRAC) is a suitable solution to improve the road performance of asphalt concrete. However, the mechanism of the fiber parameters in asphalt concrete has still not been introduced. Herein we studied the influence of fiber geometry characteristics on improving the mechanical properties of asphalt concrete through numerical simulation. The finite element method (FEM) was used to establish an elastoplastic mesoscopic model for indirect tensile test of the asphalt mixtures via ABAQUS. The best fiber length, volume ratio, diameter, and modulus were confirmed based on the simulated results. Furthermore, the indirect tensile tests were undertaken to prove the influence of polyacrylonitrile (PAN) and polyvinyl alcohol (PVA) fiber parameters on the FRAC’s splitting stability. This study fills the gap between theoretical simulations and laboratory experiments, and it is a promising solution to improve engineered FRAC road performance.
Highlights
Polymer fiber reinforcement can elevate the pavement performance indicators of asphalt concrete, including low temperature crack resistance, high temperature stability, and water stability
Fiber-reinforced asphalt concrete (FRAC) is one solution to improve the performance of asphalt pavements [6]
ABAQUS was used to simulate the mechanical behavior of FRAC with different fiber parameters in indirect tensile test
Summary
Abstract: Polymer fiber reinforcement can elevate the pavement performance indicators of asphalt concrete, including low temperature crack resistance, high temperature stability, and water stability. We studied the influence of fiber geometry characteristics on improving the mechanical properties of asphalt concrete through numerical simulation. Fiber-reinforced asphalt concrete (FRAC) is one solution to improve the performance of asphalt pavements [6]. Laboratory tests have revealed that fibers improve a series of road performance indicators, such as the rutting and fatigue resistance of asphalt mixtures [15]. FEM simulation can be used to study the improvement of the mechanical properties of asphalt concrete due to parameters such as fiber length volume rate, diameter, and modulus to verify the rationality of the model against actual test results [25]. ABAQUS was used to simulate the mechanical behavior of FRAC with different fiber parameters in indirect tensile test. Indirect tensile experiments for PAN and PVA fibers demonstrated the reasonability and accuracy of the model
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
