FIELD: construction.
SUBSTANCE: invention relates to the field of road-building mixtures and can be used to create modern asphalt concrete materials for road construction. Composition of organomineral material includes following components: crushed stone 20–60 %, mineral powder 4–12 %, basalt fiber 0.07–0.6 %, organic binder 4–12 %, sand – the rest. Basalt fiber has density of 54–240 tex and cutting length of 12–18 mm, and organic binder is a composite of two types of bitumen oil road viscous, in % of total amount of binder in mixture: bitumen of one of grades: BND 90/130, BND 60/90, BND 40/60 – 85–95 % together with bitumen of one of the following grades: BND 200/300, BND 130/200 – 5–15 %.
EFFECT: obtaining a mixture for asphalt coatings with high shear resistance, water resistance, crack resistance and ultimate strength to create a strong asphalt concrete coating.
1 cl, 4 tbl
