Patent ID: 11919812
Assignee: H2CONNECT 2 GMBH
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  B  Y | IPC B  C

Claim 5:
6. The cementitious mixture according to claim 1, wherein:
component a) is selected from the group consisting of CEM I 52.5 R and CEM I 52.5 N;
component b) is present in a quantity by weight from 0.5% to 20% and is granulated blast-furnace slag, having a specific surface ranging from 4,000 cm2/g to 5,000 cm2/g, determined according to the Blaine method according to EN 196-6:2010;
component c) is calcareous filler and is present in a quantity by weight from 15% to 40%;
component d) is present in a quantity by weight from 25% to 50%;
component e) comprises from 0.2% to 1.0% by weight of the superfluidifying additive based on polycarboxylic ether; from 0.10% to 0.50% by weight of a theology modifying additive which is hydroxymethylethyl cellulose; from 0.1% to 1.0% by weight of modified starch; from 0.3% to 0.6% by weight of a shrinkage reducing agent, from 0.1% to 0.30% of a hydrophobic additive selected from silicone or silane derivatives and mixtures thereof;, wherein the binder/aggregate weight ratio ranges from 0.62 to 1.36, wherein the binder components a) and b), and said cementitious mixture has a viscosity value ranging from 80,000 Pa·s to 150,000 Pa·s, measured at a shear rate of 0.01 s−1 and at a temperature of 20° C.