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Information × Registration Number 0220U102881, 0118U000699 , R & D reports Title Conduct research and develop methodological recommendations on the use of road cement concrete with organo-mineral complexes popup.stage_title Head Tolmachov Sergiy M., Доктор технічних наук Registration Date 16-06-2020 Organization Kharkiv National Automobile and Road University popup.description2  The object of research is cement concrete road with organo-mineral complex of additives. The aim of the work is to study the influence of chemical and mineral additives both separately and in a complex on the properties of cement concrete, to conduct research on the influence of organo-mineral complex components on technological properties of cement concrete mixtures and operational properties of cement concrete. Develop guidelines for the use of road cement concrete with organo-mineral complex. Research methods - analysis of literature sources, experimental methods. Based on the analysis of literature sources it is shown that the greatest influence on the dependences and patterns between the structure of cement concrete, the properties of the resulting structure and the specifics of its interaction with aggressive environmental factors have chemical and mineral additives. The use of only plasticizers of different efficiency does not allow to improve to the necessary extent the basic performance properties of road concrete. The introduction of only microfillers into the concrete mix leads to an increase in the water consumption of concrete mixes, which can reduce the strength and durability of road concrete. Analysis of literature sources to determine the influence of organo-mineral complexes on the properties of cement concrete showed that the influence of complexes consisting of superplasticizer and mineral additives on the properties of cement concrete was insufficiently studied. A study was conducted to determine the effect of superplasticizer, air entrainment additive and microfiller, both separately and together, on the volume of air drawn into the concrete mixture, on the stratification and density of the concrete mixture. Product Description popup.authors Belichenko Olena A Bondar Tamara V Krilov Evgen O Mudrik Mikola S Povolyaev Oleksii A. Sheinich Leonid O popup.nrat_date 2020-07-03 Close