High-strength concrete and method of producing same
AssigneeUniversite Laval
InventorsLuca Sorelli, David Bouchard
Life of this patent
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Abstract
There is described a high-strength concrete generally having: about 100 parts by weight of cement; about 60 to about 360 parts by weight of fine aggregates; about 90 to about 230 parts by weight of mineral powder having a diameter D50 below 150 μm; about 0.1 to about 25 parts by weight of superplasticizer; and about 20 to about 65 parts by weight of water, the high-strength concrete has a cement content less than about 500 kg/m3 and having a compressive strength after 28 curing days of about 55 MPa or greater.
Claims17
A high-strength concrete comprising:
- 100 parts by weight of cement;
- 60 to 360 parts by weight of fine aggregates having a D50 diameter above 100 um;
- 90 to 230 parts by weight of mineral powder having a D50 diameter below 150 μm;
- 0.1 to 25 parts by weight of superplasticizer;
- and 20 to 65 parts by weight of water, the high-strength concrete has a cement content less than 500 kg/m3 and has a compressive strength after 28 curing days of 55 MPa or greater, the mineral powder comprising igneous rock powder.
A high-strength concrete mix comprising:
- 100 parts by weight of cement;
- 60 to 360 parts by weight of fine aggregates;
- and 90 to 230 parts by weight of mineral powder having a diameter D50 below 150 μm, which, when mixed with 20 to 65 parts by weight of water and 0.1 to 25 parts by weight of superplasticizer, forms a high-strength concrete having a cement content less than 500 kg/m3 and having a compressive strength after 28 curing days of 55 MPa or greater, the mineral powder comprising igneous rock powder.
A method of producing a batch of high-strength concrete, the method comprising:
- mixing concrete ingredients into a drum, the concrete ingredients having 100 parts by weight of cement, 60 to 360 parts by weight of fine aggregates, 90 to 230 parts by weight of mineral powder having a diameter D50 below 150 μm, 0.1 to 25 parts by weight of superplasticizer, and 20 to 65 parts by weight of water, with a cement content less than 500 kg/m3 of cement, the mineral powder comprising igneous rock powder.
Dependencies are inferred from the claim text.