| 3D打印水泥基材料制品的强度各向异性研究 |
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| 引用本文： | 王振地,王玲,郭杰,庞立,鲍志江. 3D打印水泥基材料制品的强度各向异性研究[J]. 中国建材科技, 2022, 31(2): 1-3 |
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| 作者姓名： | 王振地 王玲 郭杰 庞立 鲍志江 |
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| 作者单位： | 中国建筑材料科学研究总院有限公司 绿色建筑材料国家重点实验室；长安大学 材料科学与工程学院;北京市燕科新技术有限公司 |
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| 基金项目： | 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 |
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| 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。
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| 关 键 词： | 3D打印；水泥基材料；各向异性；抗折强度；抗压强度 |
The study of strength anisotropy of 3D printed cement-based materials product |
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| WANG Zhendi,WANG Ling,GUO Jie,PANG Li,BAO Zhijiang. The study of strength anisotropy of 3D printed cement-based materials product[J]. China Building Materials Science & Technology, 2022, 31(2): 1-3 |
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| Authors: | WANG Zhendi WANG Ling GUO Jie PANG Li BAO Zhijiang |
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| Abstract: | 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. |
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| Keywords: | 3D printing cement-based materials anisotropy flexural strength compressive strength |
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