同济大学学报（自然科学版）2026，Vol.54Issue(2)：223-230,8.DOI:10.11908/j.issn.0253-374x.24345
3D打印混凝土界面性能的超声波表征与分析
Ultrasonic Characterization and Analysis of Interface Properties in 3D Printed Concrete
摘要
Abstract
In order to investigate the impact of interface bonding performance on the non-destructive testing of 3D printed concrete(3DPC),concrete specimens with different layer counts and time intervals were printed and subjected to non-destructive testing using ultrasonic equipment.Additionally,splitting tests were conducted to determine the interfacial bond strength of 3DPC.It is shown that 3DPC exhibits slower wave propagation speeds and smaller amplitudes compared to cast concrete.Moreover,with the increase in the number of printed layers and time intervals,the amplitude attenuation also increases.Amplitude attenuation can be attributed to three parts:the loss caused by ultrasonic wave transmission between the transducer and the specimen,the along-path loss of concrete height,and the loss caused by the printed interface layer.The ultrasonic wave amplitude of 3DPC is significantly lower compared to cast concrete,as the number of printed layers increases,the interface bond strength of 3DPC initially increases and then decreases,showing a linear relationship with the amplitude loss.关键词
3D打印混凝土(3DPC)/无损检测/界面性能/超声波Key words
3D printed concrete(3DPC)/non-destructive testing/interface properties/ultrasonic wave分类
建筑与水利引用本文复制引用
齐成,吴宇清,朱鹏,郅朋..3D打印混凝土界面性能的超声波表征与分析[J].同济大学学报（自然科学版）,2026,54(2):223-230,8.基金项目
国家自然科学基金(52178299) （52178299）
