PREPARACION DE CEMENTOS FOSFOMAGNESICOS

LA PRESENTE INVENCION SE REFIERE A UN PROCESO DE PREPARACION DE CEMENTOS FOSFOMAGNESIANOS QUE CONSISTE EN MEZCLAR ELEMENTOS CONSTITUTIVOS QUE COMPRENDEN UN PRIMER CONSTITUYENTE A BASE DE FOSFORO Y DE UN SEGUNDO CONSTITUYENTE A BASE DE MAGNESIO, LLAMADOS FASE LIGANTE, CON AL MENOS UN COMPUESTO ELEGIDO ENTRE LAS SILICONAS Y EL AGUA. LA INVENCION SE REFIERE A UNA COMPOSICION PARA CEMENTO FOSFOMAGNESIANO QUE COMPRENDE UN PRIMER CONSTITUYENTE A BASE DE FOSFORO, UN SEGUNDO CONSTITUYENTE A BASE DE MAGNESIO, LLAMADOS FASE LIGANTE, Y AL MENOS UN COMPUESTO ELEGIDO ENTRE LAS SILICONAS, REPARTIDO EN LA COMPOSICION. LOS CEMENTOS ASI OBTENIDOS TIENEN PROPIEDADES MECANICAS CONSERVADAS INCLUSO CUANDO SE PONEN EN PRESENCIA DE AGUA. Process for the preparation of phosphomagnesium cements, consisting in mixing constituent components including a first constituent based on phosphorus and a second constituent based on magnesium, which are called a binding phase, with at least one compound chosen from silicones and water. A further subject of the invention is a composition for a phosphomagnesium cement including a first constituent based on phosphorus, a second constituent based on magnesium, which are called a binding phase, and at least one compound chosen from silicones, which is distributed in the composition. The cements thus obtained have mechanical properties which are preserved even when they are brought into contact with water.