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.