Efficient concrete increased water resistance modified with mineral and polymeric additives

Abstract

The article deals with issues of optimizing the composition of efficient concrete increased water resistance, reducing its cost without losing or increasing its basic properties. In recent years, the most effective method of tightness to water in the construction of buried and underground structures, as opposed to the use of bituminous and other traditional materials, is a method based on the use of concrete with increased water resistance. This type of tightness to water is called “White bath” in Europe. The essence of the technology is that the role of the impervious layer is performed directly by the concrete itself. The subject of the study is the composition of self-stressing concrete, which has a high density and fastness to water, but a high price compared to the concrete on Portland cement, which limits its wide application. The aim of the study is the development and optimization of the composition or stressing concrete with desired properties using a variety of mineral and polymeric additives to reduce the cost of the finished product while maintaining or improving the significant operational indicators.

Increasing the Biostability of Concrete by the Introduction Of Additives

“…As a consequence, the strength characteristics of cement stone concrete made with additives of inhibitors are reduced to a lesser extent. Hydrophobic additives make the pore surface immune to the waste products of microorganisms and other liquid media, preventing the dissolution and leaching of calcium-containing phases from the cement stone structure [24][25][26]. Also, calcium stearate can colmate the pores [19,27,28], preventing the entry of substances deep into the cement stone of concrete.…”