Investigation the usability of garnet as filler material in hot mix asphalt

In this study, the usability of garnet in hot mix asphalt (HMA) as the filler material is investigated. Therefore, the garnet material is sieved through 75 µm. Obtained garnet dust is substituted into hot mix asphalt (HMA) mixture as filler material in four different rates (25, 50, 75 and 100%). Optimum binder rates and the gradation are determined in accordance with the Superpave volumetric mix design procedure. After the determination of optimum binder rate for each different garnet rate, the mixtures have compacted using Superpave gyratory compactor. Indirect tensile strength values and the tensile strength ratios have been obtained in accordance with AASHTO T 283 test procedure. © Springer Nature Singapore Pte Ltd. 2020

Expanded Glass Usability in Hot-Mix Asphalt as Fine Aggregate

In this study, the usability of expanded glass (EG) in hot-mix asphalt (HMA) as the fine material is investigated. Firstly, standard tests on the EG have been done to determine the basic properties. Next, optimum binder content and aggregate gradation are determined in accordance with Superpave volumetric mix design. The EG is substituted into the HMA as a fine aggregate (in accordance with the original size) in four different rates (25, 50, 75 and 100%). Optimum binder content for each EG ratio is determined. The Superpave gyratory compactor is used for the compaction of the specimens. Prepared specimens have been tested for the indirect tensile strength and tensile strength ratio. © Springer Nature Singapore Pte Ltd. 2020