Engineered Portland cement incorporating SCMs and methods for making same

A method for manufacturing a dry blended engineered hydraulic cement, comprising:

• (i) manufacturing a Portland cement clinker at a cement plant;
• (ii) milling the Portland cement clinker at a milling facility to form at least a portion of a cement fraction;
• (iii) importing the Portland cement clinker from the cement plant and/or the cement fraction from the milling facility to a terminal located at least 200 miles from the cement plant and/or the milling facility;
• (iv) blending, without intergrinding, the cement fraction with a coarse supplementary cementitious material (SCM) fraction to form a dry blended engineered hydraulic cement having an SCM content of at least about 30% by weight, the coarse SCM fraction having a d90 of at least 40 μm and a d50 greater than a d50 of the cement fraction, the cement fraction and coarse SCM fraction each having a particle size distribution (PSD) so that the dry blended engineered hydraulic cement has a broader PSD than the PSD of the cement fraction by itself;
• and
• (v) distributing the dry blended engineered hydraulic cement to a plurality of concrete manufacturing plants at different locations.

A method for manufacturing a dry blended engineered hydraulic cement formulated for use in making concrete, comprising:

• receiving, by a concrete plant at a first location, a cement clinker manufactured at a cement plant at a second location and milling the cement clinker at the first location to form a cement fraction and/or receiving a cement fraction at the first location milled from the cement clinker, the cement clinker and/or the cement fraction having at least one high reactivity characteristic selected from:
• (i) the cement clinker including at least 61% by weight tricalcium silicate (C3S) and at least 4.5% by weight tricalcium aluminate (C3A);
• (ii) the cement clinker including at least 57% by weight tricalcium silicate (C3S) and at least 5.5% by weight tricalcium aluminate (C3A);
• (iii) the cement clinker including at least 73.5% by weight of combined tricalcium silicate (C3S) and tricalcium aluminate (C3A), or
• (iv) the cement fraction having a d85 less than about 35 μm;
• receiving, by the concrete plant, a supplementary cementitious material (SCM) and further processing the SCM into one or more SCM fractions and/or receiving one or more SCM fractions and optionally further processing the one or more SCM fractions, the one or more SCM fractions including a coarse SCM fraction having a d90 of at least 40 μm and a d50 greater than a d50 of the cement fraction;
• blending, at the concrete plant and without intergrinding, the cement fraction with the coarse SCM fraction to form a dry blended engineered hydraulic cement having an SCM content of at least about 30% by weight, the cement fraction and the coarse SCM fraction each having a particle size distribution (PSD) so that the dry blended engineered hydraulic cement has a broader PSD than the PSD of the cement fraction by itself;
• and
• storing the dry blended engineered hydraulic cement at the concrete plant for later use.