Artificial granite based bitumen-mineral mixtures

Bitumen-mineral mixtures are widely used in asphalt concrete, waterproofing materials, blind areas production and other technologies. In this article, it is proposed to use artificial granite as aggregat in the bitumen-mineral mixtures production: waste product from the porcelain stoneware production, formed as a result of firing a charge consisting of natural raw materials – high-quality clay or kaolin, feldspar and quartz sand. This ensures stability of the chemical-mineralogical and physico-technical properties of the porcelain stoneware production waste, which peculiarity associated with low porosity. The need for the adhesive additives introduction has been identified. The cationic-type additives represented by cyclic imidazolines, which contribute to hydrogen bonds formation between the low-porous glass crystal structure of the porcelain stoneware production waste and organic binder is recognized as the most effective adhesive additive. It is shown that the physical and mechanical properties of the bitumen-mineral mixture based on the porcelain stoneware production waste is not worse then mixtures using natural mineral raw materials.