摘要
为研究水泥基材料3D打印制品的强度各向异性,制备了具有不同材料组成的3D打印试件。通过测试打印试件在垂直和平行于打印方向上的力学性能,发现水泥基材料3D打印试件存在强度各向异性,提出了定量表征强度各向异性的数学表达式,分析了抗压强度各向异性的规律。养护龄期对强度各向异性的影响相比材料组成的影响更明显。抗折强度各向异性的绝对值在20%左右,并未发现明显规律。
In order to investigate the strength anisotropy of 3D printed cement-based materials,3D printed cement-based specimens with different materials composition are prepared.It is found that 3D printed cement-based specimens has strength anisotropy by testing the mechanical properties of printed specimens along the direction of vertical and parallel to the printing direction.A mathematical expression for quantitative characterization of strength anisotropy is presented.The law of compressive strength anisotropy is analyzed.The influence of curing age on compressive strength is more obvious than that of materials composition.The absolute value of flexural strength anisotropy is around 20%,and no obvious pattern is found.
作者
王振地
王玲
郭杰
庞立
鲍志江
WANG Zhendi;WANG Ling;GUO Jie;PANG Li;BAO Zhijiang(State Key Laboratory of Green Building Materials,China Building Materials Academy Co.,Ltd.,Beijing 100024;School of Materials Science and Engineering,Chang’an University,Xi’an 710061;Beijing Yanke Corporation,Beijing 100035)
出处
《中国建材科技》
CAS
2022年第2期1-3,共3页
China Building Materials Science & Technology
基金
北京市国际创新资源合作项目(Z201100008320003)
长安大学中央高校基本科研业务费专项资金。
关键词
3D打印
水泥基材料
各向异性
抗折强度
抗压强度
3D printing
cement-based materials
anisotropy
flexural strength
compressive strength
