ASPHALT MIX Russian patent published in 2010 - IPC C04B26/26 

FIELD: construction industry.

SUBSTANCE: invention refers to road construction materials and can be used for construction of pavements of automobile roads, bridges, aerodromes in all climatic zones. Invention refers to asphalt mix containing standard components - screenings of crushed stone, sand, mineral dust and oil bitumen. At that, it contains additional components - vulcanised rubber and composition of the modifying components, which consists of calcium metasilicate of needlelike structure, epoxide resin, nitrosamine compound, phenol resin and/or colophony, the ratio of which, wt %, is as follows: calcium metasilicate of needlelike structure - 24%, epoxide resin - 2%, nitrosamine compound - 1%, phenol resin and/or colophony - 4%, vulcanised rubber (rubber crumb) - 69%, at the following ratio: standard components by weight in % - 98.5-99.5, additional components by weight in % 0.5-1.5.

EFFECT: reducing temperature sensitivity and increasing endurance life at increase in water resistance, cold resistance, resistance to impact of salt aqueous solutions, decreasing viscosity and increasing plasticity of asphalt mix at negative temperatures.

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