Material based on alumu00ecnio silicate desidroxilado,Process and installation for the treatment of desidroxilau00e7u00e3o alumu00ecnio silicate and process for improving the kinetics of the reaction pozolu00e2nica material based alumu00ecnio silicate

摘要

"Material based alumu00ecnio silicate desidroxilado,Process and installation for the treatment of desidroxilau00e7u00e3o alumu00ecnio silicate and process for improving the kinetics of the reaction pozolu00e2nica material based alumu00ecnio silicate.The invention relates to a material based on aluminium silicate desidroxilado presenting a pozolu00e2nica reactivity more rapidly.Characterized by the fact that the amount of calcium hydroxide reacted, as measured by the pozolu00e2nica reactivity (PR) after a cure 3 days, is at least 50%.In a process and an installation for the treatment of desidroxilau00e7u00e3o of aluminum silicate, aluminum silicate containing particles are exposed to a temperature of at least 500 198 C.The particles are in the form of a dry powder, and the powder dry (26) is optionally carried in a gas stream (30) at a temperature ranging from 600 to 850 198 C,During a period which is sufficient to achieve the desired degree of desidroxilau00e7u00e3o.The powder can be obtained from a base directory (by reducing the base folder of the fragments (23).And the breakdown of the fragments (23) of the base directory by means of mechanical action (3) in the presence of a hot gas (24) at a temperature ranging from 500 to 800 C 198 198 C,To form the dry powder (26).