It has been recognized that there exists a potential benefit from using synthetic fibers to reinforce asphalt mixtures. In these mixtures, the state of the fibers may play an essential role in their reinforcement function. This study aims to quantify the state of synthetic fiber distribution for two different aramid fiber–based asphalt mixtures and then show the impacts of fiber dispersion on modulus, rutting, and fatigue performance of each asphalt mixture in comparison with one another and with respect to an equivalent non-reinforced asphalt mixture. Both a quantitative and qualitative assessment of aramid fibers distribution as well as state of fiber are investigated using a fiber extraction procedure and microscopy imaging, respectively. The results suggested that a higher level of micro-fibrillation as well as high distribution of aramid fibers improved the rutting resistance of asphalt mixtures, while the distribution level of aramid fibers and fibers state did not affect the modulus and fatigue. These results are specific to the mixture studied but provide the first objective and detailed study describing fiber state, fiber dispersion, and performance.
Effect of Synthetic Fiber State on Mechanical Performance of Fiber Reinforced Asphalt Concrete
Transportation Research Record: Journal of the Transportation Research Board
Transportation Research Record: Journal of the Transportation Research Board ; 2672 , 28 ; 42-51
2018-07-07
Article (Journal)
Electronic Resource
English
A high performance maintenance technique: fiber reinforced cold laid asphalt concrete
British Library Conference Proceedings | 1993
|Fiber-Reinforced Asphalt Concrete as Sustainable Paving Material for Airfields
Online Contents | 2011
|Fiber-Reinforced Asphalt Concrete as Sustainable Paving Material for Airfields
Transportation Research Record | 2012
|Application of Silica Fume in Synthetic Fiber-Reinforced Concrete
Online Contents | 1993
|