ӨНДІРІС ҚАЛДЫҒЫ ФОСФОГИПСТІ ҚҰРЫЛЫСТА ГИПС БАЙЛАНЫСТЫРУШЫ МАТЕРИАЛ РЕТІНДЕ ЗЕРТТЕУ

Abstract

The possibilities of processing and using waste from phosphogypsum production have been determined. The conditions for solving problems associated with the use of phosphogypsum are considered, in some cases the construction of new enterprises for the production of phosphorus-containing fertilizers and the expansion or further use of existing enterprises. The chemical composition of phosphogypsum obtained from industrial waste and the chemical composition of phosphogypsum with heavy metals have been determined. Research was conducted on the topic “Study and use of phosphogypsum production waste as a gypsum binder in construction”. Research work was carried out on the production of gypsum binder material from phosphogypsum. The temperature of the laboratory, as well as the tested materials, samples and instruments, was maintained at the required temperature. The temperature and relative humidity in the room have stabilized. The possibility of using phosphogypsum production waste as building materials is considered. Determination of the amount of metal impurities in the binder and determination of the specific surface area were determined according to approved guidelines.