Effect of microfillers on the concrete structure formation

G. Vatulia,A. Plugin,O. Darenskyi,Olga Borziak,Vitalij Chajka,Volodymyr Perestiuk,Stanislav Vandolovskyi,Oleksandr Romanenko

doi:10.1051/matecconf/201711601001

Abstract

Physical and mechanical properties of concrete as a composite material are determined by structure formation processes. This paper examines the effect of dispersed mineral fillers of anthropogenic origin on concrete structure formation processes and physical and mechanical properties of fine concrete. The presence of surface charge and electrosurface potential leads to the formation of electrically heterogeneous contacts between oppositely charged surfaces which determine the strength of the material as a whole. The introduction of steel microfillers leads to the formation of strong electrically heterogeneous contacts, hardening of concrete structure and increase in its strength.

Highlights

Concrete is a multi-component composite material, whose physical and mechanical properties are determined by structure formation processes
This paper examines the effect of dispersed mineral fillers of anthropogenic origin on concrete structure formation processes and physical and mechanical properties of fine concrete
The presence of surface charge and electrosurface potential leads to the formation of electrically heterogeneous contacts between oppositely charged surfaces which determine the strength of the material as a whole

Summary

Introduction

Concrete is a multi-component composite material, whose physical and mechanical properties are determined by structure formation processes. The structure formed thereby is multilevel, from the microstructure to macrostructure of concrete which is a composite material [1]. Each level of the structure is determined by the dimensions of structureforming elements and has certain structural characteristics, in particular the grain separation factor and water-cement ratio [1,2,3,4]. The concrete strength properties are defined by electrically heterogeneous contacts, i.e. the interaction between the oppositely charged surfaces with structural elements of all specified levels. The regulation of structural elements and the creation of electrically heterogeneous contacts allow us to control the properties of concrete on the whole

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