US 11,851,371 B2
Biomass waste materials as a set-retardation agent in cement or concrete
Zhihui Sun, Louisville, KY (US); Noppadon Sathitsuksanoh, Louisville, KY (US); and Chengqing Qi, Overland Park, KS (US)
Assigned to University of Louisville Research Foundation, Inc., Louisville, KY (US)
Filed by University of Louisville Research Foundation, Inc., Louisville, KY (US)
Filed on Jul. 28, 2021, as Appl. No. 17/387,452.
Claims priority of provisional application 63/058,218, filed on Jul. 29, 2020.
Prior Publication US 2022/0033304 A1, Feb. 3, 2022
Int. Cl. C04B 18/24 (2006.01); C04B 28/04 (2006.01); C04B 18/14 (2006.01); C04B 18/02 (2006.01); C04B 28/08 (2006.01)
CPC C04B 18/248 (2013.01) [C04B 18/021 (2013.01); C04B 18/146 (2013.01); C04B 28/04 (2013.01); C04B 28/08 (2013.01)] 16 Claims
 
1. A concrete mixture, comprising:
cement powder;
a plant biomaterial in a solid form, wherein the plant biomaterial does not comprise ash and wherein the plant biomaterial has been treated with an alkaline extraction agent and washed with water after treatment with the alkaline extraction agent; and
concrete aggregate,
wherein a ratio of cement powder to the biomaterial ranges from 10:1 to 100:1.