	US 12,110,254 B2
	Concrete-forming composition
Robert Baumann, Rueschlikon (CH); Jörn Breckwoldt, Hamburg (DE); Alexandra Hild, Soltau (DE); and Marc Schmitz, Verden/Aller (DE)
Assigned to DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US)
Appl. No. 17/298,709
Filed by Dow Global Technologies LLC, Midland, MI (US)
PCT Filed Feb. 6, 2020, PCT No. PCT/US2020/016941 § 371(c)(1), (2) Date Jun. 1, 2021, PCT Pub. No. WO2020/176211, PCT Pub. Date Sep. 3, 2020.
Claims priority of provisional application 62/811,598, filed on Feb. 28, 2019.
Prior Publication US 2022/0048820 A1, Feb. 17, 2022
Int. Cl. C04B 24/38 (2006.01); C04B 28/04 (2006.01); C04B 111/34 (2006.01)

CPC C04B 24/383 (2013.01) [C04B 28/04 (2013.01); C04B 2111/343 (2013.01)]

8 Claims

1. A concrete-forming composition for producing a concrete article comprising:

(a) at least one internal curing agent including a water-insoluble crosslinked cellulose ether wherein the water-insoluble crosslinked cellulose ether has a water adsorption capacity of greater than or equal to 10 g/g as measured by the tea bag test method and a 1% aqueous viscosity of from 2 to 2,000 mPa·s and wherein the water-insoluble crosslinked cellulose ether can be successfully and efficiently used as a water-insoluble crosslinked cellulose ether internal curing agent in concrete formulations with an objective of reducing autogenous shrinkage and crack formation in the concrete; and

(b) a cementitious material.