Chemical composition of silicate modifier for composite biocidal binder

There is a need of biocidal building materials during production of constructions in civil and industrial engineering. It is beneficial to produce such materials on the base of composite binder with biocidal silicon -metal modifier. The chemical composition of the specific modifier was examined and some results are presented in the gi ven article. The modifier with “soft”-permanent effect is composed of reaction products between sodium hydrosilicates and copper sulfate. It is revealed that there are several types of siloxane bonds and silanol groups. Copper hydroxide is not formed, copper carbonate and basic copper carbonate can only be formed if condition ν(Cu):ν(Si) = 1.0 is met.