FIELD: construction.
SUBSTANCE: fiber-containing composite mixture for pavements, characterized by that it contains the following components at their ratio, %: crushed stone 20–60; mineral powder 4–12; water 3–12; organic binder 4–12; reinforcing material consisting of basalt fiber with density of 54–240 tex with cutting length of 12–18 mm and polyacrylonitrile fiber with density of 0.17–0.77 tex with cutting length of 6–18 mm 0.07–0.6; sand – balance, wherein the organic binder is a composite of two types of petroleum bitumens, in % of the total amount of the binder in the mixture: one of the viscous bitumen grades: BND 200/300, BND 130/200, BND 90/130, BND 60/90, BND 40/60 85–95, together with one of grades of liquid slowly bituminous bitumen: MG 40/70, MG 70/130 5–15, and basalt fiber and polyacrylonitrile fiber in following ratio of components of total amount of introduced reinforcing material in mixture, %: polyacrylonitrile fiber 60–95; basalt fiber 5–40.
EFFECT: fiber-containing composite mixture for pavements is proposed.
1 cl, 1 tbl
Authors
Dates
2020-02-03—Published
2018-12-03—Filed