US 12,012,362 B2
Compositions and method to improve the aesthetics 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. 16/198,060.
Claims priority of provisional application 62/589,302, filed on Nov. 21, 2017.
Prior Publication US 2019/0152858 A1, May 23, 2019
Int. Cl. C04B 24/08 (2006.01); B32B 13/04 (2006.01); C04B 24/12 (2006.01); C04B 24/42 (2006.01); C04B 28/18 (2006.01); C04B 40/02 (2006.01); C04B 111/00 (2006.01); C04B 111/20 (2006.01); C04B 111/21 (2006.01)
CPC C04B 28/188 (2013.01) [B32B 13/04 (2013.01); C04B 24/08 (2013.01); C04B 24/085 (2013.01); C04B 24/122 (2013.01); C04B 24/42 (2013.01); C04B 40/0231 (2013.01); C04B 2111/0075 (2013.01); C04B 2111/2076 (2013.01); C04B 2111/21 (2013.01); Y02P 40/18 (2015.11)] 21 Claims
 
1. A non-hydraulic cement product comprising:
a plurality of particles of a carbonatable calcium silicate cement, the calcium silicate comprising one or more discrete calcium silicate phases selected from CS (wollastonite or pseudowollastonite), C3S2 (rankinite), C2S (belite, larnite, bredigite), and an amorphous calcium silicate phase at about 30% or more by mass of the total phases;
a first additive and a second additive;
wherein, the first additive is a hydrophobic organic acid, or a salt thereof, or a silane, or a polysiloxane, and the second additive is an organic molecule with at least one primary, secondary or tertiary amine group.
 
9. The non-hydraulic cement product of claim 8, wherein the first additive is present in an amount of 0.1 wt % to 2.0 wt % of the amount of cement, and the second additive is present in an amount of 0.1 wt % to 2.0 wt % of the amount of cement.