Abstract
The aim of the study was to determine the relationship between the structure and properties of a gypsum composite based on semi-aquatic gypsum with a filler in the form of hollow glass microspheres with characteristics of water demand and the degree of filling of the mixture with microspheres. We used a glass filler with the sizes of hollow microspheres of 0.1 - 50 microns with a vacuum inside. To solve this problem, a two-factor planned experiment was chosen, where the ultimate compressive strength and the average density of the gypsum composite were selected as the output factors. The data obtained confirm the effectiveness of using hollow microspheres for producing light materials based on calcium sulfate hemihydrate. Domestic samples of glass microspheres were used. It is shown that they have a plasticizing effect in the composition of raw mixtures based on gypsum binder and contribute to a decrease in their average density.
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