硅酸盐通报2024，Vol.43Issue(5)：1633-1641,1682,10.
植筋与3D打印砂浆粘结性能试验研究
Bond Performance Between Embedded Rebar and 3D Printed Mortar
摘要
Abstract
In order to explore the feasibility of rebar embedding technology in 3D printed cement-based materials,this study conducted a series of pull out tests to investigate the influence of rebar embedding methods(pre-embedded,embedded),forming methods(pouring,printing),the angle between the printing bar and the rebar(0°,90°),and bond length(5φ,7φ,10φ,φ is rebar diameter)on the bond performance between embedded rebar and 3D printed mortar.Comparative analysis was carried out on the ultimate load,relative slip between rebar and mortar matrix,and failure modes of different specimens.The results show that when the printing bar is perpendicular to the rebar,the best bonding effect is achieved using the rebar embedding method.The ultimate load of vertically printed embedded rebar specimens is 58.30％higher than that of pre-embedded rebar specimens.Under the rebar embedding method,the corresponding slip value of the ultimate load increases.Additionally,with the increase of the bond length,the ultimate load increases,but the increase becomes less significant when the bond length exceeds 7φ,and the failure mode changes from splitting failure to rebar pullout.The study indicates that reinforcement with rebar embedding can significantly improve the bond performance between 3D printed mortar and rebar and enhance the deformation capacity of the specimens.关键词
3D打印砂浆/植筋/打印方式/粘结性能/拉拔试验/破坏模式Key words
3D printed mortar/embedded rebar/printing method/bond performance/pull out test/destruction mode分类
建筑与水利引用本文复制引用
周荀,柳根金,王银辉,李贺东,耿健,谢伟鸿,倪坤..植筋与3D打印砂浆粘结性能试验研究[J].硅酸盐通报,2024,43(5):1633-1641,1682,10.基金项目
浙江省自然科学基金项目(LQ 22E080024) （LQ 22E080024）
国家级大学生创新训练项目(202313022050) （202313022050）
