Abstract
Additives were selected, and a method for modifying the structure of gypsum-containing materials for construction purposes and a method for their dispersion were developed. Based on the selected modifiers, effective compositions of composite gypsum-containing materials based on local and secondary raw materials were developed. An increase in their strength and resistance to water was established. The use of gypsum plaster mixes shows their high efficiency and advantages compared to traditional finishing works methods. They provide a high and stable level of finishing quality, reduced transportation costs, and easy recycling of materials. However, despite the high consumer properties, the modern use of compositions based on the most affordable gypsum raw materials in the Republic and the production of gypsum binder beta calcium sulfate semi hydrate is limited to plasters and putties for rooms with normal operation. This is mainly because the compositions have a short setting time, low water resistance, and low strength characteristics. As a rule, the softening factor for such compositions does not exceed 0.5, and the compressive strength is 4-6 MPa
Highlights
In recent years, based on new developments, innovative projects, and rapid development of construction, there has been a radical reassessment of approaches to the choice of materials used in construction
In scientific centers and higher educational institutions of the world, research works are carried out in the field of developing compositions and technologies for producing modified composite materials, including composite gypsumcontaining materials based on natural raw materials and industrial waste, to create new building materials, such as the University of Tokyo (Japan), New-York State Institute (USA), KNAUF, Claudius Peters, Weimar State Construction University (Germany), Neopol II University (Italy), Moscow State University of Civil Engineering, Institute of Materials Science of the Russian Academy of Sciences (Ukraine)
Dry building mixes (DBM) are powdered compositions consisting of a mineral binder or polymer binder, fillers, additives prepared in
Summary
In recent years, based on new developments, innovative projects, and rapid development of construction, there has been a radical reassessment of approaches to the choice of materials used in construction. Reliability, and durability are the requirements that modern building materials must meet. Dry mixes are a set of ingredients prepared in the factory: mineral binders, fillers, and fillers of fixed dispersion, dispersion polymer powders, and various modifying additives
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