US RE49 415 E

Particle packed cement-SCM blends

(22) 06.03.2019

(45) 14.02.2023

(57) Cement-SCM blends employ particle packing principles to increase particle packing density and reduce interstitial spacing between the cement and SCM particles. Particle packing reduces the amount of water required to obtain a cement paste having a desired flow, lowers the water-cementitious material ratio (w/cm), and increases early and long-term strengths. This may be accomplished by providing a hydraulic cement fraction having a narrow PSD and at least one SCM fraction having a mean particle size that differs from the mean particle size of the narrow PSD cement by a multiple of 3.0 or more to yield a cement-SCM blend having a particle packing density of at least 57.0%.

(71) Roman Cement, LLC, Salt Lake City, UT (US)

(73) Roman Cement, LLC, Salt Lake City, UT (US)

Issue 1-2/2016 US 2015/0321953 A1

Cement blend compositions

(22) 29.11.2013 (43) 12.11.2015 (57) A computer simulator predicts the performance of neat Portland cement systems, or Portland cement systems containing supplementary cementing materials (SCM)....

Issue 10/2015 US 9 102 567 B1

Engineered Portland cement incorporating SCMS and methods for making same

(22) 30.05.2013 (45) 11.08.2015 (57) Engineered cements are described that include an engineered clinker fraction designed for use with one or more supplementary cementitious material (SCM)...

Issue 3/2020 US 10 494 298 B1

Cement-SCM compositions and methods and systems for their manufacture

(22) 24.10.2016 (45) 03.12.2019 (57) Cement-SCM compositions have improved strength compared to cement-SCM compositions made using conventional blended cements and methods. The cement-SCM compositions...

Issue 02/2024 US 2023/0406773 A1

Low density lightweight particles for use in gypsum and other cementitious mixtures

(22) 15.06.2023 (43) 21.12.2023 (57) A composition is provided including a low density light-weight gypsum or cementitious mix including low density lightweight mineral or polymer based particles with...

Issue 7-8/2019 US 2019/0112228 A1

Macro-cement compositions, method of producing macro-cement and engineered forms of macro-cement, and multi-stage homogenization process for preparing cement based materials

(22) 13.12.2018 (43) 18.04.2019 (57) A macro-cement and associated methods useful for preparing pastes, mortars, concretes and other cement-based materials having high workability, high density, and...

ZKG 3/2023