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 the following, wt %: phosphogypsum binder 54-60; quartz sand 2.5-4.5; capron fibre cut to 5-50 mm pieces 0.5-1; urea-formaldehyde resin 0.5-1; water 36-40.EFFECT: high strength of the gypsum bricks.1 tbl