An activated aluminosilicate binder containing aluminosilicates, calcium sulphate and an activator containing alkali metal salts is disclosed. The aluminosilicates are selected from a group consisting of blast furnace slag, clay, marl and industrial by-products, such as fly ash, and has an Al.sub.2 O.sub.3 content greater than 5% by weight. Blast furnace slag is present in an amount less than 35% by weight, and cement kiln dust, in an amount of from 1 to 20% by weight, is added to the mixture as an activator.

Una carpeta activada del aluminosilicate que contiene aluminosilicates, el sulfato de calcio y un activador que contiene las sales alcalinas-metálicas se divulga. Los aluminosilicates se seleccionan de una escoria del alto horno alto del grupo que consiste en, de una arcilla, de una marga y de subproductos industriales, tales como cenizas volantes, y tienen un Al.sub.2 O.sub.3 mayor el de 5% contento al lado del peso. La escoria del alto horno alto está presente en una cantidad menos el de 35% por el peso, y el polvo de horno de cemento, en una cantidad de a partir la 1 a el 20% por el peso, se agrega a la mezcla como activador.

 
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