Abstract
This paper reports the results of a laboratory investigation on the use of recycled fillers in bituminous mixtures for road pavements. The fillers were obtained by crushing and sieving (0.00–0.063 mm) Stabilized Bottom Ashes from municipal waste incinerators and Electric Arc Furnace Steel Slags. Moreover, a currently used calcareous filler was included in the research for comparative purposes. Two filler dosages were considered in the experiments.Laboratory tests aimed at investigating compaction properties, volumetric characteristics, and mechanical performance of the bituminous mixtures.The results suggest that both types of recycled filler are suitable to be used in bituminous mixtures, also demonstrating that in certain conditions the investigated fillers increase the performance of the corresponding mixtures in comparison to standard (calcareous) filler.
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