Research Progress and Application of 3D Printing Concrete

Abstract

Abstract: 3D printing concrete technology, with the advantages of free formwork, high automation and intellectualization, has attracted more and more concerns, and achieved successful application in the field of construction engineering and other related fields. However, 3D printing technology puts forward higher requirements to the rheological performance of concrete, while the current standards or codes for concrete are no longer applicable to guide the mix design of 3D printing concrete. Meanwhile, due to the effect of the printing process, the hardened properties and reinforcement technology of 3D printing concrete are different from that of conventional concrete. Therefore, this paper reviews 3D printing concrete from four main aspects, i.e., rheological and printable performance, mix design, hardened properties, and reinforcement technology. Besides, for comprehensively presenting the development and application of 3D printing concrete, different types of engineering projects and special types of 3D printing concrete are introduced in this review. This review is expected to provide a reference for the further development and research of 3D printing concrete.

Key words: 3D printing, concrete, rheological performance, printability, buildability, hardened property, reinforcement

CLC Number:

TU528

ZHANG Chao, DENG Zhicong, MA Lei, LIU Chao, CHEN Yuning, WANG Zhibin, JIA Zijian, WANG Xianggang, JIA Lutao, CHEN Chun, SUN Zhengming, ZHANG Yamei. Research Progress and Application of 3D Printing Concrete[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(6): 1769-1795.

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