Cement, lime paste, mortar and gypsum mortar is a kind of thing?
A: the main components of gypsum is calcium sulfate (CaSO4). The plaster of Paris is made from finely ground gypsum. In case of water, it will be re - hydrated into two gypsum, forming a solid stone object
Coarse composition is different: gypsum mortar is gypsum + sand composition. Cement, lime paste, mortar is cement + lime paste + sand.
Cement, lime paste, mortar and gypsum mortar are not a kind of thing.
