Particle size optimized white cementitious compositions

A method of manufacturing a cementitious composition comprising:

• providing white Portland cement prepared by grinding white cement clinker in a mill together with gypsum to produce the white Portland cement having a Blaine fineness between about 350 m2/kg and about 550 m2/kg, a D90 between about 11 μm and about 50 μm, and a total combined iron oxide, manganese oxide, and chromium oxide content of less than 1.0% by weight;
• providing a ground granulated blast furnace slag (GGBFS) prepared by separately grinding granulated blast furnace slag in a mill, and without intergrinding with the white Portland cement, to produce GGBFS having a Blaine fineness greater than the Blaine fineness of the white Portland cement, a D90 less than the D90 of the white Portland cement, and a total combined iron oxide, manganese oxide, and chromium oxide content of less than 2.0% by weight;
• and
• blending the white Portland cement and the GGBFS and optionally one or more additional components.

A cementitious composition comprising mixture products of:

• white Portland cement having a Blaine fineness between about 350 m2/kg and about 550 m2/kg, a D90 between about 12 μm and about 45 μm, and a total combined iron oxide, manganese oxide, and chromium oxide content of less than 1.0% by weight;
• a ground granulated blast furnace slag (GGBFS) having a Blaine fineness greater than the Blaine fineness of the white Portland cement and that is between about 425 m2/kg and about 700 m2/kg, a D90 less than the D90 of the white Portland cement and that is between about 7 μm and about 40, and a total combined iron oxide, manganese oxide, and chromium oxide content of less than 2.0% by weight;
• and
• at least one supplementary cementitious material (SCM) selected from the group consisting of natural pozzolan, ground pumice, metakaolin, ground limestone, ground marble, calcium carbonate, precipitated calcium carbonate, calcined clay, calcined shale, industrial ash, ground glass, and mixtures thereof.

A cementitious composition comprising mixture products of:

• white Portland cement having a Blaine fineness between about 350 m2/kg and about 550 m2/kg, a D90 between about 12 μm and about 45 μm, and a total combined iron oxide, manganese oxide, and chromium oxide content of less than 1.0% by weight;
• a ground granulated blast furnace slag (GGBFS) having a Blaine fineness greater than the Blaine fineness of the white Portland cement and that is between about 425 m2/kg and about 700 m2/kg, a D90 less than the D90 of the white Portland cement and that is between about 7 μm and about 40, and a total combined iron oxide, manganese oxide, and chromium oxide content of less than 2.0% by weight;
• and
• at least one additive selected from the group consisting of lime (CaO), dolomite lime (CaO.MgO), hydrated lime (Ca(OH)2), hydrated dolomite lime (Ca(OH)2.Mg(OH)2), calcium sulfate hemihydrate (CaSO4.½H2O), anhydrous calcium sulfate (CaSO4), calcium sulfate dihydrate (CaSO4.2H2O), and mixtures thereof.