WO 2022/212695 A1

Cement additive for retardation of cement hydration, cement
mixtures including same, and methods of forming and using same

(22) 31.03.2022

(43) 06.10.2022

(57) Cement mixtures comprising a hydration retarder comprising algae, cement additives comprising algae and/or derivatives thereof, and methods of forming and using the mixtures and additives are disclosed. The algae can be treated to form desired N functional groups to tune retardation properties of the hydration retarder.

(71) The Regents of the University of Colorado, A Body Corporate, 1800 Grant Street, 8th Floor, Denver, CO 80203 (US)

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