Hydraulic binder and binder matrices made thereof

C - Chemistry – Metallurgy – 04 – B

Patent

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Details

C04B 28/00 (2006.01) C04B 28/08 (2006.01) C04B 28/26 (2006.01)

Patent

CA 2736772

The invention relates to a hydraulic binder, comprising K, Ca, aluminosilicates, as well as optionally Li, Na, and Mg, wherein the binder comprises the following components: a) a latently hydraulic aluminosilicate glass with a ratio of (CaO+MgO+ Al2O3)/SiO2 > 1 and b) an alkali activator of the empirical formula (I) a(M2O) * x(SiO2) * y(H2O) (I) wherein M = Li, Na, K, a = 0-4, and x- 0-5 and y = 3-20, wherein the molar ratio of Ca/Si is <1, the molar ratio of Al/Si is <1, and the molar ratio of M/Si is >0.1. Furthermore, it relates to binder matrices, mortars, concrete adhesives, and metal anodes made of such binder.

Liant hydraulique qui contient K, Ca, des aluminosilicates, ainsi, éventuellement, que Li, Na et Mg, caractérisé en ce qu'il comporte les constituants suivants : (a) du verre d'aluminosilicate à hydraulicité latente présentant un rapport (CaO+MgO+AI2O3)/SiO2 supérieur à 1 et (b) un activateur alcalin de la formule suivante : a(M2O) * X(SiO2) * y(H2O) dans laquelle M représente Li, Na, K, a vaut 0-4, x vaut 0-5 et y vaut 3-20, le rapport molaire Ca/Si étant inférieur à 1, le rapport molaire Al/Si étant inférieur à 1 et le rapport molaire M/Si étant inférieur à 0,1. La présente invention concerne en outre des matrices de liant, des mortiers, des colles pour béton et des anodes métalliques produites à partir dudit liant.

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