	US 11,873,262 B2
	Inorganic binder system comprising blast furnace slag and solid alkali metal silicate
Maxim Pulkin, Trostberg (DE); Maria Müller, Trostberg (DE); and Steffen Wache, Trostberg (DE)
Assigned to SIKA TECHNOLOGY AG, Baar (CH)
Appl. No. 17/275,833
Filed by SIKA TECHNOLOGY AG, Baar (CH)
PCT Filed Sep. 10, 2019, PCT No. PCT/EP2019/074089 § 371(c)(1), (2) Date Mar. 12, 2021, PCT Pub. No. WO2020/053201, PCT Pub. Date Mar. 19, 2020.
Claims priority of application No. 18194299 (EP), filed on Sep. 13, 2018.
Prior Publication US 2022/0041503 A1, Feb. 10, 2022
Int. Cl. C04B 7/153 (2006.01); C04B 28/26 (2006.01); C04B 111/00 (2006.01)

CPC C04B 7/1535 (2013.01) [C04B 28/26 (2013.01); C04B 2111/00637 (2013.01)]

19 Claims

1. An inorganic binder system comprising

(i) blast furnace slag, wherein the blast furnace slag comprises from 30 to 45% by weight of CaO, 4 to 17% by weight of MgO, 30 to 45% by weight of SiO₂, and 5 to 15% by weight of Al₂O₃, and

(ii) at least one solid alkali metal silicate having the empirical formula m SiO·n M₂O,

wherein M is selected from the group consisting of Li, Na, K and mixtures thereof, and wherein the inorganic binder system is obtained by co-grinding a mixture comprising the blast furnace slag and the at least one solid alkali metal silicate.