ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Preparation and High-Velocity Impact Experiment for Three-Dimensional-Printed Concrete

Author(s): Jiehang Zhou, Longyu Du, Jianzhong Lai, Qiang Wang, Saiyang Dong, and Yujie Yang

Publication: Materials Journal

Volume: 119

Issue: 2

Appears on pages(s): 67-78

Keywords: fluidity; high-performance concrete; mechanical properties; penetration; three-dimensional (3-D) printing

DOI: 10.14359/51734353

Date: 3/1/2022

Abstract:
Three-dimensional (3-D) printed concrete is a new technology for civil engineering. In this paper, 3-D printed concrete was prepared for a study on static and dynamic properties. The best fluidity of the concrete was researched and the optimization mixture ratio for better mechanical performance was discussed. The mechanical performances of the concrete were tested and the anisotropy phenomenon in 3-D printed concrete was found. The computed tomography (CT) scanning and imaging progress methods were used to discuss the reason for the phenomenon. The penetration experiments were carried out to research the dynamic performance of the 3-D printed concrete. The results of the penetration tests were compared with the empirical formulas. The Young formula was improved according to the results.