Back to results
US 7,678,191 B2Granted
Fast-setting pourable mortars with high fluidity
AssigneeItalcementi S.p.A.
InventorsUmberto Costa, Roberto Cucitore
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeItalcementi S.p.A.
InventorsUmberto Costa, Roberto Cucitore
Estimating the term…
Described herein are new cementitious mortars with a high degree of fluidity and short consolidation times. The mortars contain water, a fast-setting cement, fluidifiers and/or superfluidifiers, setting regulators and aggregates having a specific granulometric distribution. The aggregates are made up of two fractions with different grain size such that the ratio between the characteristic grain diameters of the two fractions is comprised between 2.2 and 3.2. The new mortars thus obtained have values of fluidity 2-3 times higher than those of mortars produced with traditional aggregates; the increase in fluidity is obtained without increasing the water/cement ratio and without increasing the amount of fluidifiers present. The mortars produced according to the invention may be used to advantage in all applications in which it is required to associate a high degree of fluidity and a rapid consolidation.
A dry premix comprising a fast-setting hydraulic binder, fluidifiers and/or superfluidifiers, setting regulators and aggregates, where said aggregates are made up of two fractions having different grain size and the ratio between the characteristic grain diameters of the two fractions of aggregates is comprised between 2.2 and 3.2.
A pourable cementitious mortar comprising a fast-setting hydraulic binder, fluidifiers and/or superfluidifiers, setting regulators, aggregates, and water, where said aggregates are made up of two fractions with different grain size and the ratio between the characteristic grain diameters of the two fractions of aggregates is comprised between 2.2 and 3.2.
A method of using a pourable cementitious mortar comprising a fast-setting hydraulic binder, fluidifiers and/or superfluidifiers, setting regulators, aggregates, and water, where said aggregates are made up of two fractions with different grain size and the ratio between the characteristic grain diameters of the two fractions of aggregates is comprised between 2.2 and 3.2, for applications in the cement sector.
A process for preparing a pourable mortar with a high degree of fluidity, characterized by mixing water, a fast-setting hydraulic binder, fluidifiers and/or superfluidifiers, setting regulators, aggregates, and possible cementitious additives, where said aggregates are made up of two fractions with different grain size and the ratio between the characteristic grain diameters of the two fractions is comprised between 2.2 and 3.2.
A process for preparing cementitious products comprising pouring cementitious mortar comprising a fast-setting hydraulic binder, fluidifiers and/or superfluidifiers, setting regulators, aggregates, and water, where said aggregates are made up of two fractions with different grain size and the ratio between the characteristic grain diameters of the two fractions of aggregates is comprised between 2.2 and 3.2 into appropriate moulds and solidified therein.
The cementitious product comprising a dry premix comprising a fast-setting hydraulic binder, fluidifiers and/or superfluidifiers, setting regulators and aggregates, where said aggregates are made up of two fractions having different grain size and the ratio between the characteristic grain diameters of the two fractions of aggregates is comprised between 2.2 and 3.2.
Dependencies are inferred from the claim text.