Asphalt concrete pavement which is currently built in accordance with the existing requirements does not withstand the standard service life. Various kinds of damages occur. Fiber reinforcement of asphalt concretes is one of the effective means to deal with deformations and fractures of road pavements, such as rutting, buckling, crack formation and shear. Chemical fibers serving as reinforcement are of great concern herein. The major purpose of this work was evaluation of reinforcement fibers resistance to natural environment and climatic impacts within the conditions of experimental production construction and studying compactibility of asphalt concrete mixture with fiber reinforcement. Infrared spectroscopy and physical-chemical investigations of fibers were used to study changing properties of fiber-forming polymer. Compactibility of asphalt concrete mixture with fiber reinforcement was determined upon compaction factor. Research results revealed insignificant influence of natural environment and climatic impacts on the properties of fiber reinforcement material. In order to obtain the standard compaction factor of asphalt concrete additional compacting impact is not required.

The paper considers the road transportation sector in the context of the negative impacts of the global economic and financial crises on the environment. The ecology-oriented development of the road construction, road repair and maintenance are described herein. The promising research and innovation development in Siberia includes the ways to increase the stability of asphalt concrete pavements, studying the possibilities of waste utilization produced by the local industrial enterprises (for example, stillage residues of the chemical industry) for the road asphalt modification; replacement of rock materials used in the upper and lower layers of the pavement coatings by by-passed stone, utilization of plastics scrap and rubber in polymer modification.

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The paper focuses on increasing the service life of the road pavement layers made of dispersion hardened organomineral mixtures through the aging intensity reduction of organic binder, which begins at the preparation stage of these mixtures and lasts during the structural layer operation.   The organic binder generates adsorption-volute shells on the surface of mineral materials, which become more viscous and acquire increased brittleness. Crack formation becomes more intensive, pavement designed and built in accordance with the requirements destroys. Dispersion hardening of the pavement structural layers with chemical fibers from spent sorbents containing oil products, can be used to partially solve this problem.   The purpose of the work is to study the aging intensity of the binder in organomineral mixtures using electron paramagnetic resonance methods.   The aging intensity of the organic binder is evaluated by the concentration of paramagnetic centers, since asphaltenes are almost one hundred percent concentrate of paramagnets, which can serve as an indicator of the aging intensity of the petroleum dispersion system. It is shown that dispersion hardening of the pavement layers by chemical fibers from spent sorbents containing absorbed oil products, decreases the concentration of paramagnetic centers, which indicates to the higher concentration of asphaltenes, which, in turn, means a decrease in the aging intensity of the oil dispersion system.

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