Evaluating the impact of fiber type and dosage rate on laboratory performance of Fiber-Reinforced asphalt mixtures

The purpose of this study was to evaluate the impact fiber types, binder content, and their dosage rates on volumetric properties laboratory performance asphalt mixtures. One mixture (control) three types (Basalt, Fiberglass, Carbon) were used. Two different considered 0.15% (recommended rate) 0.30% by total weight. Furthermore, a novel experimental methodology developed implemented consisting design testing—Indirect Tensile Asphalt Cracking Test (IDEAL-CT) Pavement Analyzer (APA)—to isolate effects from effect content. Statistical analysis also used further fibers performance. Results showed that rate had little no optimum whereas required an increase in content 0.6%, 0.8% for basalt, fiberglass, carbon fibers, respectively, meet requirements. This need additional at could be due specimen volume (referred as rebounding height) occurred after 24 h cooling room temperature. Performance testing (regardless type) cracking rutting At rate, only improved without use binder. Overall, highlighted benefits challenges using fiber-reinforced reinforced