Highly thixotropic 3D printing concrete and manufacturing method therefor

US11554993B2 · kind B2 · utility

Assignees

• CHINA TIESIJU CIVIL ENGINEERING GROUP CO., LTD. · CN
• ANHUI ZHONGTIE ENGINEERING MATERIAL TECHNOLOGY CO., LTD. · CN
• CENTRAL SOUTH UNIVERSITY · CN

Inventors

• Jun Wu · Hangzhou City, CN
• Jianwei Peng · Daguantang, CN
• Hai HUANG · Foshan, CN
• Juan Chen · Campbell, US
• Qiang Yuan · Qingdao, CN
• Jie Tang · Ibaraki, JP
• Jianan Yao · Hohhot, CN
• Zhiyong Wang · Sunnyvale, US
• JIAN-PENG YU · Daguantang, CN
• Yang Liu · Shanghai, CN

Key dates

• Filing date: Jun 4, 2019
• Grant date: Jan 17, 2023
• Expiry date: Nov 12, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02W30/91
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A highly thixotropic 3D printing concrete and a manufacturing method therefor are provided. The weight percentage of each component calculated per cube of concrete is: 35-40% of cement, 0.1-0.4% of polycarboxylate superplasticizer, 0.1-0.4% of polypropylene fiber, 1.0-3.0% of special thixotropic agent for 3D printing concrete, and 12.5-14.5% of water, and the remainder is sand.