WO 2021/125979 A1

Cement additive

(22) 16.12.2020

(43) 24.06.2021

(57) The invention provides cement additives comprising calcium sulfate and silica which are derived from a material comprising perovskite and silica, along with cements and cementitious products comprising the cement additives. The invention also pro-vides methods for the making the cement additive and cements and cementitious products comprising the cement additives.

(71) Avertana Limited, Brooke House, 24 Balfour Road, Parnell, Auckland, 1052 (NZ)

(84) ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)

x

Related articles:

Issue 2017-12 UA115381 (C2)

Calcium sulfoaluminate composite binders

(22) 02.09.2014 (43) 25.10.2017 (57) The present invention relates to composite binders containing calcium sulfoaluminate cement and supplementary cementitious material, wherein a weight ratio of...

more
Issue 2020-9 WO 2020/091821 A1

Cement production

(22) 20.12.2018 (43) 07.05.2020 (57) The present invention provides a method and system for manufacturing cement wherein ground particles of cement and calcium sulfate are subjected to infrared...

more
Issue 2022-2 US 2022/0002197 A1

Additive for blended cement compositions, cement produced therefrom and methods related thereto

(22) 14.11.2019 (43) 06.01.2022 (57) The present invention relates to a cement additive for use in a blended cement composition, the additive comprising a precipitated calcium carbonate formed from...

more
Issue 2021-4 US 2021/0094876 A1

Cement production

(22) 20.12.2018 (43) 01.04.2021 (57) The present invention provides a method and system for manufacturing cement wherein ground particles of cement and calcium sulfate are subjected to infrared...

more
Issue 2019-1-2 HRP20181382 (T1)

Ultra-fast setting cement based on amorphous calcium aluminate

(22) 28.08.2018 (43) 19.10.2018 (57) Summary of the corresponding patent WO2015173525 (A1): The invention relates to an ultra-fast setting cement composition comprising at least amorphous calcium...

more