водостійкість

This paper presents the investigations of the environmental advantages of low carbon composite gypsum binders for building applications. The impact of ultrafine zeolite additive on the physico-mechanical properties and hydration processes of composite gypsum binders has been investigated. The modification of gypsum pastes by polycarboxylate type superplasticizer results in the radical change in the formed microstructure of composite gypsum binders. The obtained results are essential for further design and development of new types of gypsum composites with an increased water resistance.

The possibility of using gas-thermal treatment of glass containers with a solution of ammonium salts to increase the water-resistance had shown. To avoid possible cracking of the glass surface, it had suggested using an alcohol suspension or multiple sulfur-containing organic solvents. This greatly improves the chemical resistance of the jar. Therefore on the surface of the treated bottle formed a touch of salt, which has easily washed off with water.

One of the actual problems of the further sustainable development of construction industry is solution of energy and resource saving problems during production and reduction of harmful emissions. Building materials based on gypsum raw compared to cement materials of analogical purpose are characterized by low energy consumption, as well as better ecological indicators. However, gypsum materials without modifying additives have low strength and water resistance which limits their application to the area of internal processing of rooms with a relative humidity of up to 60 %.