Single-phase hydraulic binder, methods for the production thereof and structural material produced therewith

US8226764B2 · kind B2 · utility

Assignee

• KARLSRUHER INSTITUT FÜR TECHNOLOGIE · DE

Inventors

• Guenter Beuchle · Karlsruhe, DE
• Peter Stemmermann · Karlsruhe, DE
• Uwe Schweike · Karlsruhe, DE
• Krassimir Garbev · Blankenloch, DE

Key dates

• Filing date: Jul 16, 2008
• Grant date: Jul 24, 2012
• Expiry date: May 23, 2029

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P40/10
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a monophase hydraulic binder containing silicon, calcium, oxygen and hydrogen atoms in an arrangement comprising silicate building units having an average connectedness of higher than Q1.5 and silanol groups, 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 a part 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+Ox/2)]: [SiO2+M[4]y+Oy/2]having a value of 0.2 to 2.0, and the binder having an H2O content of 3.5% by weight to 20% by weight, as well as a mixture containing this binder.Furthermore, the invention relates to methods for manufacturing the binder or a mixture containing this binder by reaction grinding a starting material of silicate building units having a connectedness of Q0 to Q2, and optionally further materials, with a solid silicate raw material having a ceonnectedness of the silicate building units of Q3 to Q4 and optionally drying the monophase hydraulic binder to an H2O content of 3.5% by weight to 20% by weight.Finally, the invention relates to a building m…