PHOSPHOGYSTEM IN DRY CONSTRUCTION MIXTURES: PROSPECTS AND INNOVATIONS

Abstract

The article considers the issue of using phosphogypsum as an alternative raw material in dry building mixtures. The physicochemical properties of phosphogypsum, its effect on the performance characteristics of building materials, as well as the advantages and possible limitations of its use are analyzed. Special attention is paid to modern methods of cleaning phosphogypsum from harmful impurities, which allows to improve the quality of the final product. The prospects for using this material in innovative construction technologies are outlined, in particular in the production of putties, plaster mixtures, adhesive compositions and self-leveling floors.

Purification of phosphogypsum is a necessary step before it can be used in industry, particularly in the production of dry building mixes. The simplest methods, such as washing and filtration, can partially reduce the amount of impurities, but do not guarantee complete purification. Chemical treatment is an effective way to remove fluorides and heavy metals. Thermal methods provide deep cleaning, but require significant energy consumption. The best results are obtained by combining different methods to achieve an optimal balance between cleaning efficiency and economic feasibility.

Phosphogypsum, as a secondary product of the chemical industry, is a promising material for the construction industry, especially in the production of dry building mixes. The use of phosphogypsum in the production of building materials has significant economic benefits: lower raw material costs, new markets and the possibility of government support. From an environmental point of view, this solution helps to reduce industrial waste, cut CO₂ emissions and reduce dependence on natural gypsum. Innovative methods of its purification and modification allow us to create high-quality, environmentally friendly and cost-effective materials. For efficient use, it is necessary to improve purification methods and adapt legislation to new environmental standards. Phosphogypsum is a promising material that can make construction more environmentally friendly and cost-effective.

Translated with DeepL.com (free version)Economically and environmentally sound approaches to introducing phosphogypsum into production are proposed, which will contribute to reducing the technogenic load on the environment and rational use of industrial waste.