US 12,351,526 B2
Method of stabilizing an admixture component, a stabilized admixture for cementitious compositions, cementitious composition, cementitious structures and methods of making the same
Shaode Ong, Solon, OH (US); Paul Seiler, Aurora, OH (US); Suz-chung Ko, Chagrin Falls, OH (US); Michael Myers, Mayfield Heights, OH (US); Sandra Sprouts, Oakwood Village, OH (US); Thomas Vickers, Mentor, OH (US); and Jacki J. Atienza, Reminderville, OH (US)
Assigned to Construction Research & Technology GmbH, Trostberg (DE)
Appl. No. 17/420,880
Filed by Construction Research & Technology GmbH, Trostberg (DE)
PCT Filed Jan. 10, 2020, PCT No. PCT/US2020/013016
§ 371(c)(1), (2) Date Jul. 6, 2021,
PCT Pub. No. WO2020/146695, PCT Pub. Date Jul. 16, 2020.
Claims priority of provisional application 62/790,796, filed on Jan. 10, 2019.
Prior Publication US 2022/0098120 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 40/00 (2006.01); C04B 14/06 (2006.01); C04B 24/16 (2006.01); C04B 103/00 (2006.01); C04B 103/44 (2006.01)
CPC C04B 40/0039 (2013.01) [C04B 14/062 (2013.01); C04B 24/163 (2013.01); C04B 2103/0062 (2013.01); C04B 2103/44 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for making an aqueous admixture composition for cementitious compositions comprising:
combining together particles of an additive selected from polymeric microspheres and zirconia silica fume, a polymer thickener, and water to form a mixture, wherein the polymer thickener comprises a non-cellulosic, acid group-containing, cross-linked emulsion copolymer of an acid and an ester; and
neutralizing at a least a portion of the acid groups of the polymer thickener to activate the thickening of the thickener,
wherein said particles of said additive are stabilized against agglomeration by said activated thickener.