THE FORMATION OF THE INTERNAL STRUCTURE OF THE FINE-GRAINED CONCRETE WITH HIGH DENSITY AND STRENGTH WHEN FILLING WITH METALLURGICAL SLAG AND TWO-FREQUENCY VIBROCOMPACTION
The study of the possible use of fine-grained concrete of metallurgical slag from Volzhskiy pipe plant as micro-filler is considered reasonable. To optimize the parameters of the technology of manufacturing highly filled fine-grained concrete with the use of two-frequency vibrocompaction it is important to determine the influence of the balance between cement and slag filler on physical and mechanical properties of fine-grained concrete filled with floured metallurgical slag. Two-frequency vibrocompaction of concrete with the use of slag micro-filler allows to receive concrete mixtures with better technical characteristics. The research of the structure of the samples of highly filled fine-grained concrete are carried out by the methods of optical microscopy.