Bonding performance of 3D printing concrete with self-locking interfaces exposed to compression–shear and compression–splitting stresses
Bonding performance of 3D printing concrete with self-locking interfaces exposed to compression–shear and compression–splitting stresses
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具有自锁界面的 3D 打印混凝土在压缩剪切和压缩分裂应力下的粘合性能
DOI：
10.1016/j.addma.2021.101992
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发表时间：
2021-06
影响因子：
11
通讯作者：
Mingke Bai
中科院分区：
文献类型：
--
作者：
Li Wang;Yi Liu;Yu Yang;Yangfeng Li;Mingke Bai
目前，由于缺乏有效的结构加固方法，将3D混凝土打印应用于具有低拉/剪应力的压缩结构系统是将这种先进技术推广到工程实践的可行和替代途径。分段部件的模块化制造和大型结构的装配式建造有望克服3D打印机工作尺寸的限制。在这项研究中，四个不同的联锁配置设计的“I”，“V”，“π”和“S”形的形式。此外，三个水泥基复合材料-水泥，环氧树脂和磷酸盐基复合材料-制备，旨在优化机械咬合力和粘附力的预制结构的机械完整性和能力。通过压-拉和压-剪试验，研究和评价了连接方式对接头界面连接强度的影响。研究结果为通过3D打印节段模块化组装构建大型混凝土拱结构提供了实验数据和参考。
Currently, applying 3D concrete printing to compressed structural systems with low tensile/shear stresses is a feasible and alternative route to promote this advanced technology into engineering practice because of the lack of an effective structural reinforcing method. Modular manufacturing of segmental components and fabricated construction of large-scale structures are promising for overcoming the limitations of the working dimensions of 3D printers. In this study, four different interlocking configurations are designed with "I," "V," "π," and "s"-shaped forms. Moreover, three cementitious composites―cement-, epoxy-, and phosphate-based composites―are prepared, aiming at optimizing the mechanical integrity and capacity of prefabricated structures with mechanical bite and adhesive forces. The effects of the interlocking forms on the interfacial connection strength at the joints are investigated and evaluated by compression–tensile and compression–shear tests. The results provide experimental data and references for constructing large-scale concrete arch structures by the modular assembly of 3D-printed segments.
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影响因子：
7.4
作者：
Xiaoyan Sun;Gao Chao;Hailong Wang
通讯作者：
Xiaoyan Sun;Gao Chao;Hailong Wang
影响因子：
13.1
作者：
M. Chiang;Jianmei He
通讯作者：
M. Chiang;Jianmei He
轴向载荷下预制方管柱非焊接、非螺栓、灌浆连接的载荷传递机制
影响因子：
5.5
作者：
Lili Sui;Shiyong Fan;Zhenyu Huang;Wei Zhang;Yingwu Zhou;Jianqiao Ye
通讯作者：
Jianqiao Ye
影响因子：
10.3
作者：
Mechtcherine, Viktor;Nerella, Venkatesh Naidu;Krause, Martin
通讯作者：
Krause, Martin
聚合物改性砂浆改善 3D 打印混凝土的层间粘结：实验和分子动力学研究
影响因子：
10.5
作者：
Li Wang;Zehao Tian;Guowei Ma;Mo Zhang
通讯作者：
Mo Zhang