石灰石粉对3D打印水泥基材料性能的影响

Influence of Limestone Powder on Performances of 3D PrintingCementitious Materials

近年来,3D打印技术在建筑领域的发展有重大突破,其因制造速度快、成本低、节能环保等优势受到了越来越多的关注。但现阶段的水泥基材料在3D打印中的应用仍存在诸多不足。3D打印材料的发展是建筑3D打印技术成熟的关键性因素。本工作以掺入石灰石粉的硅酸盐水泥基材料为研究对象,以5%、10%、15%和20%的石灰石粉等量代替水泥,研究石灰石粉对3D打印水泥基材料工作性和力学性能的影响。试验结果表明:适量的石灰石粉等量代替普通硅酸盐水泥可配制工作性能优异、力学性能良好的3D打印材料。

In recent years, there have been significant breakthroughs in the development of 3 D printing technology in the construction field. Its advantages of fast manufacturing speed, low cost, energy-saving, and environmental protection have attracted more attention. However, there are still flaws in the application of cementitious materials in 3 D printing technology. The development of 3 D printing materials is a key factor for the maturity of architectural 3 D printing. In this paper, the Portland cement with limestone powder was selected as the research object, and the mix ratio suitable for 3 D printing cement-based materials was designed. Workability and mechanical strength of the 3 D printing cementitious materials with 5%, 10%, 15%, and 20% limestone powder were tested. Test results show that ordinary Portland cement mixed with an appropriate amount of limestone powder can be used as a high-quality 3 D printing material. The experimental results show that an appropriate amount of limestone powder can be used to prepare 3 D printing materials with excellent working and mechanical properties instead of ordinary Portland cement.