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Highlights: [•] In this study, it was investigated that the usability of basalt fibers in hot mix asphalt concrete. [•] Based on the determined value for the optimum bitumen content, specimen series with different fiber ratios were prepared. [•] The best results were obtained for 5% bitumen content and 0.50% basalt fiber addition. [Copyright &y& Elsevier]

Abstract: In this study, the usability of steel fibers in order to bear the stresses occurring at the surface layer of pavement, which are directly subjected to the traffic effects, was investigated. In this context, specimens were produced and tested under Marshall Stability Test, and the optimum bitumen content value for the aggregates sample to be used was determined. Results showed that based on the determined value for the optimum bitumen content (5.5%), three specimens for each of a series of different fiber rates (0%, 0.25%, 0.50%, 0.75%, 1.0%, 1.5%, 2.0%, 2.5%) were prepared and the optimum value for fiber rate that results in the best stability value was determined as 0.75%. As a result, steel fiber additions can be used in binder course of flexible pavement because of its positive stability impact. [Copyright &y& Elsevier]

Highlights: [•] In this study, the usability of rice husk ash was investigated in hot mix asphalt concrete as mineral filler. [•] Optimum bitumen content was determined as 4.73% for 5.0% limestone mineral filler rate. [•] Best Marshall Stability was obtained from 50% rice husk ash and 50% limestone of filler rate mixtures. [ABSTRACT FROM AUTHOR]