Ladle furnace slag in asphalt mixes. (30th September 2016)

• Record Type: Journal Article
• Authors: Skaf, M.; Ortega-López, V.; Fuente-Alonso, J.A.; Santamaría, A.; Manso, J.M.
• Is Part Of: Construction & building materials. Volume 122(2016)
• Page Start: 488
• Page End: 495
• Publication Date: 2016-09-30
• Subjects: Ladle Furnace Slag (LFS) -- Porous asphalt mix -- Bituminous permeable course -- Open graded asphalt concrete -- Steel slag -- Refining slag -- Steelmaking reducing slag -- Filler substitution -- Fine aggregate replacement -- Waste management; Building materials -- Periodicals; 624.18
• DOI: 10.1016/j.conbuildmat.2016.06.085
• Languages: English
• ISSNs: 0950-0618

Abstract

Highlights: LFS works properly as filler, presenting good adhesion with the bitumen. The LFS had superior bitumen absorption than the conventional materials. Porous mixes with LFS provided results in line with those of the standard mixture. LFS mixes presented good cohesion and excellent mechanical behavior. Abstract: Ladle Furnace Slag (LFS) may be used in substitution of fine aggregate (2–0.063 mm), and filler (<0.063 mm) in bituminous mixtures, considering its suitable particle size and hydraulic properties. From among the range of bituminous mixtures, this research is conducted on Porous Asphalt mixes (PA). Their high void ratio means they can absorb any eventual expansion of the LFS. Mechanical behavior, moisture susceptibility and durability are all tested. The results report the performance of the LFS mixtures, which showed compliance with the specifications of the relevant standards and no significant differences from those made of natural aggregates and cement.