REACTIVE-POWDER CONCRETE AS A SEMI-FINISHED PRODUCT FOR THE PRODUCTION OF DRY CONSTRUCTION MIXTURES OF VARIOUS PURPOSE

Abstract

In this study, the results of experimental research on masonry mortars based on dry mixtures with the use of reactive-powder concrete are givent and shown the possibility of their industrial production.

During its lifecycle, almost all concrete and reinforced concrete structures and  are exposed to aggressive environments, seismic, shock and other destructive effects that can cause damage and destruction of building structures, which leads to high demand of methods and materials for their restoration and protection from aggressive environments .

The need for repair and protection of concrete structures, including those for defense purposes, is determined by the operating conditions and concrete service life. Such protection consists in the formation of a water-impermeable layer on the surface of the insulating material (outer layer) and with the filling of surface cracks, pores and capillaries with hydration products. Surface treatment of the structure allows to increase their density, strength, watertightness, and hence the service life. Based on the obtained data, experimental and statistical models of physical and mechanical properties of fresh and hardened mortar has been built and analyzed.