Abstract
In this study, the effects of fiber lengths and surface treatments of aramid fibers on the performance of aramid fiber-modified asphalt (AFMA) binders were examined. The surface treatment effects of aramid fibers with the silane coupling agent 3-methacryloxypropyltrimethoxysilane (KH-570) were investigated using scanning electron microscopy, a static contact angle method, and Fourier transform infrared spectroscopy. The length effects of the aramid fibers on the asphalt performance were studied using a dynamic shear rheometer, viscometer, and bending beam rheometer, and the improvement mechanisms were analyzed. The results show that an increase in fiber length can improve the viscosity of AFMA, and a reinforcement effect from short fibers with high content can be achieved by using long fibers with low content. It also indicated the silane coupling agent can enhance the bonding effect of fiber and asphalt. The results of this study can provide a reference for the application of fibers in asphalt binders and asphalt mixtures.
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.
