Аннотация:This paper deals with the study metakaolin as the active additive to cement, dry building mixes and tile adhesive . From the experiments the following conclusions can be made. The usage of metakaolin as the additive to cement composition increases the strength of cement and improves its frost and corrosive properties. Metakaolin allows to replace part of Portland cement in the composition of cementitious materials, to produce high quality dry mixes, mortars and of tile adhesives. In this case material becomes cheaper. Simultaneously the main characteristics (open time, adhesion to concrete, resistance to the sliding) of the adhesive compositions containing metakaolin are better than ones without it and are even outperforms them. Also metakaolin can be used as an alternative fiber for polymer one in the composition of repair mixes.
