BINDEMITTEL AUF BASIS WAESSRIGER ALKALIMETALLSILICATLOESUNGEN UND DEREN VERWENDUNG

摘要

The invention relates to binders based on aqueous alkaline metal silicate solutions with a mol ratio of SiO2 to M2O in the region of (2.0 to 4.1):1 and a solids content in the region of 27 to 56 % wt, wherein M is sodium, potassium and/or lithium, with a content of 2 to 20 % wt., related to the alkaline metal silicate solution, of double-layered hydroxide compounds of the general formula (I): [M1-xMx(OH)2]Ax. mH2O, in which M is at least a divalent metal cation, M is at least a trivalent metal cation, A is the equivalent of an anion of mono or polybasic acids, 1/6