Abstract
The article describes the grinding efficiency of siliceous raw materials in various grinding units with respect to the alteration of their surface area and the concentration of active sites on the surface. The influence of mechanical activation of dispersed materials on the physical and mechanical characteristics of asphalt concrete has been evaluated. The proportional relationship between the number of active adsorption sites on the surface of milled mineral powders and the intensity of their interaction with bitumen, strength and water resistance of asphalt concrete has been determined, which allows to recommend this index as an integral characteristic evaluation of reactivity of materials to mechanical activation.
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