304am永利集团岳健广教授团队在国际权威学术期刊《Construction and Building Materials》（Top期刊，Q1，影响因子7.693）上发表题为“Hardened fracture characteristics of printed concrete using acoustic emission monitoring technique ”的研究论文。岳健广教授为通讯作者。该项研究得到了国家自然科学基金（编号：51778283）的资助。

Hardened fracture characteristics of printed concrete using acoustic emission monitoring technique

J.G. Yue*, D.E. Beskos, C. Feng, K. Wu

ABSTRACT：

This paper presents a study on the fracture behavior of hardened printed concrete. The fracture properties of conventional cast and printed concrete (in three printing types) were compared by conducting the splitting and three-point bending tests. The anisotropic behavior of printed concrete was analyzed through the micro-cracking mechanism monitored by using the acoustic emission (AE) technique. Compared to the cast concrete, the fracture strength of printed concrete is reduced, especially when the load was applied at the interface between the successively printed filaments. The interfaces affect the micro-cracking modes during the fracture process of the printed concrete. When the number of shear micro-cracks increases, the values of splitting strength, flexural strength and fracture energy decrease. Useful criterial indicators for the design of a printed concrete member or a structure are suggested.

文章在线网址: https://doi.org/10.1016/j.conbuildmat.2022.129684  

作者：304am永利集团；审核：张涛、方海