THE PHYSICAL-MECHANICAL CHARACTERISTICS OF THE ASPHALT MIXTURES FOR BITUMINOUS COATINGS PREPARED WITH A HIGH BLAST FURNACE GRANULATED SLAG FILLER FROM THE LIBERTY GALATI PLANT, ROMANIA

Asphalt mixtures used for bituminous coatings consists of a homogeneous, compact mixture of natural aggregates agglomerated with bitumen. Replacing the natural filler with an artificial one, obtained as waste in the metallurgical industry, would lead to a saving of material and financial resources, being one of the methods of environmental conservation by conserving the relief, protecting localities from noise produced in stone quarries, reusing a waste material. The processing of granular blast furnace slag from Liberty Galati plant, country of Romania, into filler and their subsequent use in the preparation of asphalt mixtures, leads to obtaining favourable results on two of the most currently used types, AC16surf50/70 and AC22.4bin50/70.

The appreciation of the behaviour of the asphalt mixture prepared with blast furnace slag filler compared to a standard, leads to the conclusion that the mixture is correctly dimensioned and will withstand physical and mechanical factors.

Keywords: Asphalt Mixture, Blast Furnace Slag Filler.