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Behavior of asphalt mastics containing different materials as filler

2020; NRC Research Press; Volume: 48; Issue: 4 Linguagem: Inglês

10.1139/cjce-2019-0342

1208-6029

Juan Gabriel Bastidas-Martínez, Hugo Alexánder Rondón Quintana, Márcio Muniz de Farias,

Polymer Nanocomposites and Properties

The behavior of the asphalt mixture is mainly attributed to the performance of the asphalt mastic. Several studies have been performed to evaluate the behavior of mastics made with different fillers. Most researchers have added the filler by mass within the bitumen; however, this comparison may be more appropriate by volume. An experimental program was designed to evaluate the behavior of mastics produced with five different fillers (natural limestone, LS; hydrated lime, HL; Portland cement, PC; Linz-Donawitz steel slag, LDSS; and blast furnace slag, BFS), and were dosed by mass and volume. Penetration, softening point, viscosity, multiple stress creep and recovery test, and linear amplitude sweep test were performed. Results showed that analyzed asphalt mastic properties depend on dosage type performed and test type. Furthermore, HL, PC, BFS and LDSS mastics showed better performance compared to control LS mastic.