Patent ID: 8382892

Claim:
A monophase amorphous hydraulic binder containing silicon, calcium and oxygen atoms in an arrangement comprising silicate building units having an average connectedness of at least Q 1 , with none or a part of the calcium atoms being substituted for by a metal atom M[6] x+ sixfold or higher coordinated with oxygen and/or none or no more than 45 atomic percent of the silicon atoms being substituted for by a metal atom M[4] y+ tetrahedrally coordinated with oxygen, the molar ratio of [CaO+( x/ 2)·(M[6] x+ O x/2 )]:[SiO 2 +M[4] y+ O y/2 ] having a value of 0.2 to 1.5 and the binder having less than 3.5% by weight of water.