Modern possibilities of using cement concrete in road construction

Objective . The aim of the study is to develop theoretical and practical aspects of the use of cement concrete in the construction of road pavements, as well as to determine the prospects for the development of its production technologies. Method . The study used a method for modifying the cement matrix at the nanolevel to improve the performance characteristics of the cement concrete pavement. Result . The calculation of the selection of the thickness of the cement concrete pavement based on the Fuss-Winkler hypothesis was made. Particular attention is paid to modifications that increase the resistance of cement concrete to cyclic loads and temperature fluctuations. Since the hydrated phases of concrete have a thickness within 1-100 nm, the introduction of special additives can provide reinforcement of the cement binder at the micro level. Conclusion . The unique properties of cement concrete with modern technologies of laying, compaction and maintenance, the use of nanoparticles in the cement matrix contribute to a more uniform filling of pores, improvement of strength and premature aging of concrete, which is an important factor for the transport system of Russia.