Technical feasibility for use of FGD gypsum as an additive ...
2018-4-1 · 1. Introduction. The cement manufacturing industry is the major consumer of gypsum, which is added to the clinker in a percentage of 3–5 wt% , , .. Various by-product gypsum such as phosphor-, fluoro-, citro-, boro-, titano-, tartare-, and desulphogypsum have chemical composition similar to the natural gypsum, but its use in replacing natural gypsum as cement retarder is