Matériaux minéraux Fabrication du ciment Portland avec ajout d'un déchet industriel : le phosphogypse

Manufacture of Portland cement with addition of a waste industrial: Phosphogypsum. The phosphogypsum, waste of the phosphate-enriched fertilizer, used like regulator of cement, has an influence on the quality of cement. We will show in this article which the phosphogypsum washed by textile waste water (1, 2) gives better results that the phosphogypsum not washed and that the mechanical properties in compression of cements obtained are improved.