Additive for gypsum and special mortar, composition containing the additive and its use

摘要

"Additive for gypsum and special mortar, composition containing the additive and its use" a water retention additive for building materials conglomerate, free of cellulose derivatives.Which comprise at least a rheological grade clay, preferably sepiolite, and a natural gum such as guar gum, as well as conglomeradas compositions containing the additive.And the use of additive for different construction materials comprised of gypsum and special mortars, are described.