Analyzing the Functional Features of HMA Mixtures Containing Multi-Component Polymeric and Glass Fibers

Road engineers have always tried to enhance the tensile strength and rutting resistance of asphalt mixtures, and using various fibers is one way that helps them achieve this objective. Multi-component polymeric fibers consist of 5 components, two of which, that are quite important, are polymeric and dissolve when bitumen and materials are mixed. This research has used 0, 0.4, 0.8 and 1.2% multi-component polymeric fibers (by total weight of the mixture) to investigate and compare the performance features of asphalt mixtures containing multi-component polymeric and glass fibers. Results showed that using these fibers had positive effects, prevented main failure and highly improved the low temperature, rutting and stripping performance of asphalt mixtures.