Development of the Composition of a Special Mixture for Floors Using Anhydrite Binders

Abstract

In the construction industry, the development of gypsum materials is one of the priority and promising areas. As world experience shows, the availability of dry building mixes on the market is in demand by the consumer, which leads to the development of the industry and the development of new, improved materials. It is possible to create a competitive and high-quality product by constantly conducting laboratory tests. Dry floor mixtures consisting of natural and technogenic anhydrite have not been sufficiently studied. However, it is known that the technical characteristics of anhydrite binders are on a par with Portland cement and building gypsum, occupying the golden mean between them. At the theoretical level, it can be assumed that using anhydrite binders as the main component of dry mixes, it is possible to achieve a solution with no disadvantages of similar dry building mixes based on lime, cement or gypsum, as well as with improved rheological characteristics.The paper highlights the possibilities of using anhydrite binders based on ground gypsum-anhydrite stone from the Poretsky deposit in dry building mixes for floors. The effective composition of the anhydrite binder was found, particle size distribution of mineral filler was defined, a plasticizer was selected.