Abstract
At present, the quality of bitumen-mineral mixtures both on the territory of the Russian Federation and abroad is estimated by a set of em-pirical methods based on many years of experience in the use of asphalt in road construction. In different years, numerous attempts were made to theoretically substantiate the basic patterns of material behavior under the influence of various factors. The article describes the solution of this problem using the basic provisions of phys-chemical mechanics of highly concentrated disperse systems taking into account the specifics of contact interactions. As a result of researches the quantitative correlations of indicators of physical-mechanical and structural-rheological properties forming at compaction of mixtures mixes, quantitative interconnections between formative and Destructive factors with structural-mechanical and construction-technical properties of asphalt in road coverings. It has been established that the changes in the structure of asphalt have physical-chemical nature and are reliably described taking into account the basic provisions of phys-chemical mechanics and theories of contact interactions.
Highlights
Asphalt concrete has complex rheological properties which define both the technology of work and operational reliability of the created road constructions
Quantitative criteria of estimation of a condition of structure of a material for road asphalt and asphalt mixes in the normative-technical base have not been regulated up until now. This task is theoretically solved using the basic provisions of the physicochemical mechanics of highly concentrated dispersion systems taking into account the specifics of contact interactions
Directional regulation of the processes of forming the structure of asphalt mixtures and asphalt should be carried whilst taking into account the theory of formation of highly concentrated dispersion systems and the specifics of contact interactions
Summary
Asphalt concrete has complex rheological properties which define both the technology of work and operational reliability of the created road constructions. At different points in time, numerous attempts were made to establish basic patterns of material behavior under the influence of various technological and operational factors. This allowed to establish that changes in the ratios of components and their qualitative conditions determines their physical and mechanical characteristics. It is proven that additive properties of asphalt mixes and asphalt are defined by “macro”, “meso”, and, in particular, “micro-structure”, properties of which depend on physical and chemical phenomena on the boundary of Section Binder (bitumen) – stone material
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