Compositions Based on Expansion Additive for the Repair of Reinforced Concrete Structures

Abstract

Abstract In this paper the issues of creation of effective composite materials for performance of repair and restoration works of operated reinforced concrete structures are considered. The necessity of introducing repair compositions is justified. Theoretical foundations of concrete mixtures preparation process are given. Original repair compositions developed by the authors with an expansion additive based on Portland cement, as well as substandard fine aggregates with increased physical and mechanical properties of concrete are proposed