	US 11,667,573 B2
	Compositions and method to improve the strength development of calcium silicate-based cements and concretes
Vincent Briaud, Jona (CH); Frédéric Cervera, Jona (CH); Vincent Meyer, Jona (CH); Sadananda Sahu, Tallahassee, FL (US); Ahmet Cuneyt Tas, Piscataway, NJ (US); Deepak Ravikumar, Piscataway, NJ (US); Jason Elizan Bryant, Easton, PA (US); and Anuj Seth, East Brunswick, NJ (US)
Assigned to Solidia Technologies, Inc, San Antonio, TX (US)
Filed by SOLIDIA TECHNOLOGIES, INC., Piscataway, NJ (US)
Filed on Nov. 21, 2018, as Appl. No. 16/198,129.
Claims priority of provisional application 62/589,274, filed on Nov. 21, 2017.
Prior Publication US 2019/0152859 A1, May 23, 2019
This patent is subject to a terminal disclaimer.
Int. Cl. C04B 28/18 (2006.01); C04B 24/12 (2006.01); C04B 22/14 (2006.01); C04B 40/02 (2006.01); B32B 13/04 (2006.01); C04B 22/12 (2006.01)

CPC C04B 28/188 (2013.01) [B32B 13/04 (2013.01); C04B 22/124 (2013.01); C04B 22/143 (2013.01); C04B 24/122 (2013.01); C04B 40/0231 (2013.01); C04B 2201/52 (2013.01)]

7 Claims

1. A concrete product comprising:

a cement product, wherein the cement product comprises a plurality of particles of a carbonatable calcium silicate cement and a first additive, wherein the first additive is an organic molecule with at least one primary, secondary or tertiary amine group, and a second additive wherein, the second additive is a source of calcium sulfate,

wherein the cement product is cured with a gas comprising carbon dioxide to produce a structure comprising of a core, wherein the core comprises a portion of unreacted calcium silicate particle; a silica-rich layer covering at least a portion of the surface of the core; and an exterior layer covering at least a portion of the silica-rich first layer, wherein the exterior layer comprises calcium carbonate; and

a plurality of aggregate particles.