FIELD: construction.
SUBSTANCE: invention relates to road construction, namely to production of road construction materials, and can be used in construction and repair of aerodrome and road surfaces of motor roads, parking lots and sidewalks. Method of preparing the asphalt concrete mixture involves proportioning, heating and mixing of coarse mineral aggregate in the form of crushed stone or gravel, sand from crushing screenings, mineral powder, additives in the form of a polymer and bitumen. At the same time, at the stage of mixing with coarse mineral aggregate and sand, a polymer additive is first introduced, which is represented by low-pressure polyethylene particles. They are mixed at temperature of 130–170 °C. Then, mineral powder and bitumen heated to 130–165 °C are introduced.
EFFECT: increased homogeneity of asphalt concrete mixture, reduced time and energy spent on its preparation.
1 cl, 2 tbl
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