FIELD: construction.
SUBSTANCE: invention relates to road construction mixtures, particularly to production of modern material for road pavement with improved physical and mechanical properties. Mixture contains a composite binder of the first bitumen of the first row: BND 200/300, BND 130/200, BND 90/130, BND 60/90, BND 40/60 85–95, together with one of the second row bitumen: MG 40/70, MG 70/130, with predominance in the binder bitumen of the first row; polyacrylonitrile fibre; mineral powder; filler in form of sand and regenerated asphalt concrete in their percentage ratio, %: binder - 4–6, water - 3–12, polyacrylonitrile fibre - 0.2–0.4, oleic acid - 0.2–0.6, mineral powder - 4–12, regenerated asphalt concrete - 20–40, sand is the balance.
EFFECT: technical result is improvement of physical and mechanical parameters.
1 cl, 1 tbl
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Authors
Dates
2021-01-12—Published
2020-03-02—Filed