3D打印地质聚合物材料的早期工作性研究

Research on the Workability of 3D Printing Geopolymer Materials

3D打印作为第三次工业革命的核心技术,给建筑行业带来了巨大的变革,打印建筑层出不穷。3D打印材料非同寻常的工作性作为材料关键性能对于3D打印建筑的成败有着决定性作用,目前对其工作性的研究尚处于起步阶段并未得到系统性研究。本文从3D打印浆体早期结构变化的角度出发,以重建能量(SRE)作为评价指标,研究3D打印地质聚合物材料的早期工作性能。试验结果表明:3D打印地质聚合物材料搅拌后短时间内结构重建速度以及剪切应力恢复能力使其重建能量迅速增大,提高了重建能力从而满足浆体触变性的转化,使浆体能够快速成型,为打印浆体提供支撑。

3D printing as the core of the third industrial revolution. 3D printing technology has brought great changes in the construction industry. The workability of printing material has a decisive effect on the 3D print buildings. At present, the research on the workability of 3D printing geopolymers is rarely. In this paper, the changes of structure on 3D printing geopolymer was studied by using reconstructed energy （SRE） as evaluation indexes. The result shows that the structure rebulidng speed and the shear stress recovery ability of the 3D printing geopolymer increase rapidly and improve the reconstruction at early age.Therefore the slurry can be fast form and provide support on printing pastes.