MENDELEEV UNIVERSITY OF CHEMICAL TECHNOLOGY | BAUHAUS-UNIVERSITÄT WEIMAR

Composite gypsum binders with improved water resistance

Compositions of composite gypsum binder with various active mineral additives have been developed by the authors. It is revealed that the introduction of additives in an optimal amount increases the performance characteristics of composite gypsum stone, such as flexural and compressive strength, water resistance, and also reduces the porosity and water absorption of the binder. Based on the conducted research, the optimal compositions with various active mineral additives were selected, which can be used for dry building mixes for interior and exterior decoration of premises, as well as for creating elements of load-bearing structures of low-rise buildings.

1 Introduction

In recent years the domestic industry has been in need of environmentally friendly and safe construction materials that can be produced at minimum energy consumption. These materials include gypsum-based binders. They have a number of advantages in comparison with the other binders: the environmentally friendly materials do not contain toxic components. In comparison with cement production neither pollutants nor greenhouse gases are released into the atmosphere during the production of gypsum-based binders. They have superior thermal and sound insulation properties. However...

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