CRUDE MIXTURE FOR MAKING GYPSUM BRICK

摘要

FIELD: chemistry.SUBSTANCE: invention relates to production of building materials based on phosphogypsum binder. The crude mixture for making gypsum brick contains, wt %: phosphogypsum binder 48-52; quartz sand 15.5-20; urea-formaldehyde resin 2-3; sodium chloride 1-1.5; water 26-28.EFFECT: high strength of gypsum brick.1 tbl