公开(公告)号：WO2022071992A1

公开(公告)日：2022-04-07

申请号：PCT/US2021/027966

申请日：2021-04-19

Applicant: ICON TECHNOLOGY, INC.

Inventor： MARKANDEYA, Ananya ,  GALVEZ MORENO, Daniel ,  LEY HERNANDEZ, Aida Margarita ,  KUPWADE-PATIL, Kunal ,  LE ROUX, Alexander

IPC: B28B1/00 ,  B29C64/106 ,  B28B17/00 ,  B33Y10/00

Abstract: A 3D printable clay-based mortar cementitious ink includes a blend of commercially available Portland cement, calcium carbonate, sand, and calcined clay. The calcined clay is produced from the calcination of clay having a high kaolinite content of greater than about 60%. The clay is calcined at a temperature of between about 600°C and about 800°C, preferably between about 650°C and about 850°C, for a period of one to two hours. In a preferred embodiment, a ratio of calcined clay to Portland cement is about 0.148, a ratio of calcium carbonate to Portland cement is about 0.333, and a ratio of sand to Portland cement is approximately about 3.0. The ratio of water to powder (clay, cement, calcium carbonate, and sand) may range between 0.39 and 0.40.