- 目录
- 混凝土与制品
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一种3D打印混凝土材料的试验研究
作者：雷波1，解文峰2
（1.广安职业技术学院，四川 广安 638000；2.四川农业大学，四川 雅安 611130）
摘要：3D打印技术作为现代快速建造技术的一种，是以现代打印材料与数字模型作为基础，通过3D打印机械将打印材料逐层堆积起来的建造工艺。以普通硅酸盐水泥为主要胶凝材料，结合3D打印技术研究高铝水泥、羟丙基甲基纤维素等对3D打印混凝土各项性能的影响。结果表明：当高铝水泥掺量为10%时，3D打印混凝土的12 h抗压强度为2.36 MPa，高铝水泥最佳的掺量为10%~15%，当HPMC掺量在0.05%~0.20%时，3D打印混凝土的终凝时间由280 min延长至350 min。
关键词：高铝水泥；3D打印；羟丙基甲基纤维素；混凝土
中图分类号：TU528 文献标识码：A 文章编号：1001-702X（2020）02-0072-05
Expevimental research on a 3D printing concrete
LEI Bo1，XIE Wenfeng2
（1.Guang'an Vocational & Technical College，Guang'an 638000，China；
2.Sichuan Agricultural University，Ya'an 611130，China）
Abstract：As a kind of modern rapid construction technology，3D printing technology is a construction technology based on modern printing materials and digital models，which combines printing materials layer by layer through 3D printer machinery. Ordinary Portland cement is taken as the main cementing material，and high alumina cement and hydroxypropyl methyl cellulose on effect of the properties of 3D printing concrete are systematically studied combined with modern 3D printing technology. The results show that when the content of high alumina cement is 10%，the compressive strength of 12 h is 2.36 MPa，and the optimum content of high alumina cement is 10%~15%. When the content of HPMC is in the range of 0.05%~0.20%，the final setting time of 3D printing concrete is prolonged from 280 min to 350 min.
Key words：high alumina cement，3D printing，hydroxypropyl methyl cellulose，concrete