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 6-10; carbonate sand 11-14; urea-formaldehyde resin 2-3; water 28-32.EFFECT: high strength of gypsum brick.1 tbl