durability.

The paper investigates the impact of natural zeolite and air-entraining agent on the properties of mortar mixtures and hardened mortars of different functional application. It is shown that the introduction of natural zeolite slightly increase water demand of mortar mixtures and reduced segregation. Optimization of mortar mixture with the addition of zeolite and air-entraining agent was carried out. Graphical interpretation of obtained results reveals that the highest strength parameters show mortar containing 8 wt.% of zeolite and 0,1 wt.% of air-entraining agent.

The thesis is devoted to the development of theoretical bases of the corrosion resistance of concrete by protective coatings on the base of polymethylphenylsiloxane filled with aluminum and zinc oxides. The technological properties of protective coatings compositions were investigated by methods of physical and chemical analysis, methods of the concrete surface coating and form conditions were shown. Determined that the forming matric-oxide structure covering in the process of hardening passpasses behind counting polymerization polymethylphenylsiloxane.