Self-consolidating concrete (SCC) mixture having a compressive strength of at least 25 MPa at 28 days of age
AssigneeSt. Marys Cement Inc. (Canada)
InventorsMark Wells, Philip Zacarias, Bryan Schulz, Matthew Stokkermans
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Abstract
The present disclosure describes a self-consolidating concrete (SCC) mixture having a compressive strength of at least 25 MPa at 28 days of age. In accordance with one embodiment, there is provided an SCC mixture, comprising: a mixture of coarse aggregate (CA), fine aggregate (FA), very fine aggregate (VFA), cementitious materials including Portland cement or Portland limestone cement, an ASTM C494 Type F polycarboxylate ether high range water reducer, and water, wherein the VFA has a particle size distribution in which 95% to 100% passes a 2.5 mm sieve and in which 20% to 100% passes a 75 μm sieve.
Claims26
A self-consolidating concrete (SCC) mixture, comprising:
- a mixture of coarse aggregate (CA), fine aggregate (FA), very fine aggregate (VFA), cementitious materials including Portland cement or Portland limestone cement, an ASTM C494 Type F polycarboxylate ether high range water reducer, and water, wherein the VFA has a particle size distribution in which 95-100% passes a 2.5 mm sieve and in which 20 to 100% passes a 75 μm sieve;
- wherein:
- the total cementitious materials are present in an amount between 260 and 375 kg/m3;
- CA is present in an amount between 700 and 1130 kg/m3;
- FA is present in an amount between 481 and 1010 kg/m3;
- VFA is present in an amount between 135 and 500 kg/m3;
- ASTM C494 Type F polycarboxylate ether high range water reducer is present in an amount between 0.1 and 0.28 weight percent of polycarboxylate solids relative to total cementitious materials;
- and
- wherein the SCC mixture has a water-to-cement ratio which ranges between 0.4 and 0.8.
Dependencies are inferred from the claim text.