Authors: S.J. Andronov, A.A. Zadiraka

Title of the article: Comparison of producing composite asphalt mixtures additive dispersion-reinforcement fiberglass basalt

Year: 2017, Issue: 2, Pages: 161-165

Branch of knowledge: Chemical technology

Index UDK: 66-963

DOI: -

Abstract: A method of increasing the stability of asphalt concrete to external loads is the introduction into its structure of fibers and yarns. Introduction to the mixture of long (extended) elements - yarns, fibers or wires, with satisfaction and constancy of quality indicators, as well as ease of use, now is an insoluble problem. Intro-duction to the mix of small size (discrete) elements can achieve their uniform distribution (dispersion) in the mixture, and get a "composite" materials with higher physical and mechanical properties in the finished structural member during the operation were selected by experienced compositions composite dispersion-reinforced asphalt mixtures and determined the impact on their property in the way of the introduction of a mixture of fibers of different densities and length cutting, performed experiments to simulate cooking modes and the introduction of fiber in the composite mixture. The studies have established the effectiveness of the method of administration premix polyacrylonitrile fiber with a mineral powder in the mixture of components for improving the bituminous mixture physico-mechanical properties of the coatings of asphaltic concrete road. In the process of the job selected compositions of composite dispersion-reinforced asphalt mixtures and determined the effect on the properties of basalt fibers with different densities, performed experiments to simulate cooking modes and the introduction of basalt fiber in the mixture. The main difference crushed stone mastic asphalt (SMA) from conventional asphalt lies in its rigid frame structure which provides the load transfer from the surface to the underlying layers through direct contact with each other separate large particles of hard material. This achieves a significant reduction secretiveness cover deformation. SMA is an independent kind of asphalt that ensures, unlike other types of mixtures of both water resistance, sdvigoustoychivost and roughness of the topcoat layer

Key words: dispersion-reinforced composite asphalt basalt fiber fiber laboratory tests control samples physical and mechanical properties composite materials technology

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