Narrow psd hydraulic cement, cement-scm blends, and methods for making same

作者: Andrew S. Hansen , John M. Guynn

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摘要: Hydraulic cements, such as Portland cements and other that include substantial quantities of tricalcium silicate (C 3 S), dicalcium 2 aluminate A), and/or tetracalcalcium alumino-ferrite 4 AF), are particle size optimized to have increased reactivity compared similar chemistry decreased water demand fineness. Increasing hydraulic cement increases early strength development release reactive calcium hydroxide, both which enhance SCM replacement 1-28 day strengths blends conventional one or more SCMs, coal ash, slag natural pozzolan. Decreasing the can improve by decreasing water-to-cement ratio for a given workability. The narrow PSD well suited making blended including binary, ternary quaternary blends.

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