ALEXANDRIA, Va., April 9 -- United States Patent no. 12,269,772, issued on April 8.
"Polished lightweight structural concrete and method of formation" was invented by Bart Rockett (Marlton, N.J.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of forming a lightweight polished concrete and the resulting composition. Calcium sulfoaluminate (CSA) cement and specialized grout may be added to an amount of water in a mixer. The CSA cement, specialized grout, and water may be blended to a smooth consistency. Lightweight aggregates (LWA) may be added to the blended CSA cement, specialized grout, and water to form a mixture. The mixture may be poured over a fiberglass rebar, vibrated, screeded, and allowed to...