BITUMINOUS CONCRETE MIXTURE ON BASIS OF MODIFIED BITUMEN FOR HIGHWAY COATING Russian patent published in 2017 - IPC C04B26/26 C04B18/20 C04B111/20 C04B111/27 

Abstract RU 2613211 C1

FIELD: building.

SUBSTANCE: invention relates to road-building materials, and can be used for highway coating. Bituminous concrete mixture for highway covering includes modified bitumen binder consisting of bitumen BND 60/90 and high-calcium fly ash of Nazarovsky hydroplant. As aggregate, crushed granite and sifting of crushed granite are used. As filler, limestone mineral powder is used in the following ratio of the components: crushed granite of fraction 5-20 mm - 38.7%, sifting of crushed granite - 46.6%, limestone mineral powder - 8.5%, bitumen of the brand BND 60/90 - 5.04%, high-calcium fly ash - 0.56%.

EFFECT: invention improves the quality of the road surface by improving physical and mechanical characteristics, reduces swelling and water saturation, and improves water resistance.

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Authors

Dates

2017-03-15Published

2015-12-25Filed