聚合物对水下3D打印建筑砂浆性能的影响  

Effect of Polymers on Performance of Underwater 3D Printing Building Mortar

作　　者：杨钱荣[1,2] 邢昌祥 赵宗志 蒋正武[1,2] YANG Qianrong;XING Changxiang;ZHAO Zongzhi;JIANG Zhengwu(Key Laboratory of Advanced Civil Engineering Materials of Ministry of Education,Tongji University,Shanghai 201804,China;School of Materials Science and Engineering,Tongji University,Shanghai 201804,China)

机构地区：[1]同济大学先进土木工程材料教育部重点实验室,上海201804 [2]同济大学材料科学与工程学院,上海201804

出　　处：《建筑材料学报》2023年第6期678-686,696,共10页Journal of Building Materials

基　　金：国家自然科学基金资助项目(51878480,52078369)。

摘　　要：研究了乳胶粉、纤维素醚、淀粉醚掺量对水下3D打印建筑砂浆(3DP-BM)流变性能、工作性能、抗分散性能以及力学性能的影响.结果表明:未掺乳胶粉或纤维素醚,以及淀粉醚掺量过高都会导致3DP-BM无法在水下进行打印;同时掺加乳胶粉、纤维素醚和淀粉醚,3DP-BM具有良好的工作性能、适宜的力学强度和水下抗分散性能;当乳胶粉掺量为0.500%、纤维素醚掺量为0.100%、淀粉醚掺量为0.025%时,3DP-BM具有适宜的可操作时间,良好的水下抗分散性能,以及较高的水下强度和水下堆积高度.The effects of latex powder(FX),cellulose ether(HM)and starch ether(KH)on rheological properties,working properties,anti-dispersant properties and mechanical properties of underwater 3D printing building mortar(3DP-BM)were studied.The results show that 3DP-BM cannot be printed underwater without FX or HM,or with too much KH.Mixed with FX,HM and KH together,3DP-BM has good working performance,appropriate mechanical strength and underwater anti-dispersion performance.When the content of FX,HM and KH is 0.500%,0.100%and 0.025%respectively,3DP-BM has suitable operational time,good underwater anti-dispersion property,and high underwater strength and underwater stacking height.

关 键 词：3D打印 聚合物 水下 性能 

分 类 号：TU528.01[建筑科学—建筑技术科学]