US 12,304,866 B2
3D printable portland limestone clay-based mortar utilizing locally available materials
Ananya Markandeya, Austin, TX (US); Daniel Galvez Moreno, Austin, TX (US); Aida Margarita Ley Hernandez, Austin, TX (US); Kunal Kupwade-Patil, Austin, TX (US); and Alexander Le Roux, Austin, TX (US)
Assigned to ICON Technology, Inc., Austin, TX (US)
Filed by Icon Technology, Inc., Austin, TX (US)
Filed on Apr. 19, 2021, as Appl. No. 17/234,416.
Claims priority of provisional application 63/086,332, filed on Oct. 1, 2020.
Prior Publication US 2022/0106230 A1, Apr. 7, 2022
Int. Cl. C04B 28/04 (2006.01); B28B 1/00 (2006.01); B33Y 10/00 (2015.01); B33Y 70/00 (2020.01); C04B 14/06 (2006.01); C04B 14/10 (2006.01); C04B 14/28 (2006.01); C04B 111/00 (2006.01)
CPC C04B 28/04 (2013.01) [B28B 1/001 (2013.01); B33Y 10/00 (2014.12); B33Y 70/00 (2014.12); C04B 14/06 (2013.01); C04B 14/104 (2013.01); C04B 14/106 (2013.01); C04B 14/28 (2013.01); C04B 2111/00146 (2013.01); C04B 2111/00181 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A three-dimensional (3D) printable clay-based mortar consisting of:
Portland cement;
calcium carbonate;
sand;
calcined clay; and
at least a portion of an air-entraining admixture, a high range water reducer, a slump retention admixture, a shrinkage reducing admixture, and a hydration stabilizer,
wherein the combination of calcined clay and calcium carbonate increases nucleation sites and provides calcium hydroxide to enhance mechanical strength of a structure.