水泥基建筑3D打印材料的制备及应用研究  

Preparation and application of 3D printing materials in construction

作　　者：蔺喜强[1] 张涛[1] 霍亮[1] 李国友[1] 张楠[1] 王宝华[1] 

机构地区：[1]中国建筑股份有限公司技术中心,北京101300

出　　处：《混凝土》2016年第6期141-144,共4页Concrete

摘　　要：水泥基建筑3D打印材料主要原料是指快硬硫铝酸盐水泥和矿物掺合料组成的复合胶凝材料,以及尾矿机制砂,通过添加复合调凝剂和复合体积稳定剂等制备而成,可直接泵入建筑用3D打印机中应用于施工。试验结果表明制备的3D打印材料具有下述特点：早期强度高,后期强度发展稳定,其中2 h抗压强度为10～20 MPa,3 d抗压强度为40～50 MPa,28 d抗压强度为50～60 MPa;凝结时间可调节,一般初凝时间为20～50 min,终凝时间为30～60 min;可满足建筑3D打印施工连续性和强度要求。Building 3D printing ink,the main raw material is cement and sand tailings,in addition to adding coagulant admixtures,retarding admixtures,thixotropic agents and volume stabilizer.The material can be directly pumped to building 3D printers and applied in construction.The 3D printing materials have high early strength,its 2 h compressive strength is 10-20 MPa and 28 days compressive strength is 50-60 MPa.The setting time can be adjustedamong 20-60 rain.It is low-cost, rapid coagulation, high early strength, good adhe- sion, stability and could meet the requirements of construction 3D printing.

关 键 词：3D打印材料 快硬硫铝酸盐水泥 凝结时间 应用 

分 类 号：TU528.01[建筑科学—建筑技术科学]