WO2025132757 (A1)

Method of producing a hydraulic cement composition

(43) 26.06.2025

(57) A method of producing a hydraulic cement composition, comprising - providing a raw material that comprises> 18 wt.-% kaolinite, ≥ 15 wt.-% calcite and a combined content of muscovite and illite of < 20 wt.-%, - calcining the raw material to obtain a pozzolanic material, - mixing the pozzolanic material with Portland cement clinker so that the cement composition comprises> 50 wt.- % of the pozzolanic material and < 45 wt.- % of the Portland cement clinker.

(71) Holcim Technology Ltd [Ch] + (Holcim Technology Ltd)

Issue 04-05/2025 WO 2025/078560 A1

Method of producing a pozzolanic material for use in a low-carbon cement

(22) 11.10.2024 (43) 17.04.2025 (57) A method of producing a pozzolanic material for use in a low-carbon cement, comprising: - providing an argillaceous material that comprises 1 49 wt.-%...

Issue 12/2016 US 2016/0304395 A1

Method for producing a pozzolanic or latent-hydraulic cement clinker substitute

(22) 04.12.2014 (43) 20.10.2016 (57) Methods for producing pozzolanic or latent hydraulic cement clinker substitutes may involve calcining clay with a fuel comprising a mineral substance at...

Issue 05/2024 WO 2024/090580 A1

Method for producing hydraulic cement composition using blast furnace slag and converter furnace slag

(22) 27.10.2023 (43) 02.05.2024 (57) A method for producing a hydraulic cement composition, the method comprising: a step (A) for mixing a blast furnace slag generated in a pig iron production step in...

Issue 7-8/2017 WO 2017/072571 A1

Method of producing a cement composition

(22) 17.10.2016 (43) 04.05.2017 (57) A method of producing a cement composition, which comprises Portland cement and at least one added component, comprising the steps of : storing Portland cement...

Issue 06/2025 WO2025133057 (A1)

Method of producing cement clinker from a source of calcium sulfate

(43) 26.06.2025 (57) A method of producing cement clinker from a source of calcium sulfate, comprising: - blending a source of calcium sulfate with silica, alumina, and iron oxide containing materials...

ZKG 06/2025