Method of improving the mechanical strength, particularly the strength “at young ages” of cement matrices, and the cement matrices obtained thereby
AssigneeCoatex
InventorsPascal Gonnon, Yves Kensicher, Christian Jacquemet
Life of this patent
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Abstract
Cements or hydraulic binders may be prepared by adding an aqueous suspension comprising a ground mineral filler and at least one grinding aid agent to a cement or hydraulic binder. The resulting cement or hydraulic binder has very appreciably improved mechanical properties, particularly the property of “strength at young ages.” The grinding aid agent may be a natural or synthetic homopolymer and/or copolymer.
Claims46
A method of improving the strength at young ages of a cement matrix or hydraulic binder comprising:
- adding an aqueous suspension comprising a ground mineral filler and at least one grinding aid agent to a cement or hydraulic binder,
- wherein the grinding aid agent comprises synthetic copolymers prepared by polymerizing ethylenically unsaturated monomers, and
- wherein the monomers comprise (i) at least one anionic monomer, and either (ii) at least one alkoxy-, aryloxy-, alkylaryloxy- or arylalkyloxy-polyalkylene glycol ethylenic ester, ethylenic ether or ethylenic urethane monomer, or (iii) at least one non-ionic monomer, or (ii) and (iii).
A method of preparing a cement matrix or hydraulic binder comprising:
- adding an aqueous suspension comprising a ground mineral filler and at least one grinding aid agent to a cement or hydraulic binder,
- wherein the grinding aid agent comprises a polyaspartate or derivative thereof.
A method of preparing a cement matrix or hydraulic binder comprising:
- adding an aqueous suspension comprising a ground mineral filler and at least one grinding aid agent to a cement or hydraulic binder,
- wherein the grinding aid agent comprises a homopolymer or copolymer prepared by polymerizing ethylenically unsaturated monomers which comprise (iv) at least one cationic monomer.
Dependencies are inferred from the claim text.