河南城建学院学报2026，Vol.35Issue(2)：73-81,9.DOI:10.14140/j.cnki.hncjxb.2026.02.010
低水泥胶凝材料的可打印性研究
Printability of cementitious material with low cement content
摘要
Abstract
Cementitious material with low cement content exhibits short initial setting time due to the pres-ence of activators,which facilitates 3D printing,but low viscosity leads to a poor extrudability.Methyl hy-droxyethyl cellulose ether as a tackifier was used to improve the viscosity of paste in this paper.The effects of tackifier and activator(potassium silicate solution)on the fluidity,rheology,buildability and interlayer bonding strength of cementitious material with low cement content were studied.Results indicate that the flowability of mortar decreases,and yield stress and plastic viscosity increases with increasing tackifier or activator amount.However,when the amount of tackifier increases to 0.11%,the buildability significantly decreases,so that the amount of activator has to be increased.3D printing sample has lower compressive strength in the Interlayer direction than the cast paste.Increasing the amount of tackifier provides some im-provement,but the effect is limited.For this study,a good printability can be obtained when printing time of every mixed paste keeps about 10 min,but the tackifier amount should be carefully controlled.关键词
低水泥胶凝材料/3D打印/可建造性/可挤出性/钾水玻璃Key words
cementitious material with low cement content/3D printing/buildability/extrudability/potassium silicate solution分类
建筑与水利引用本文复制引用
张文斌,马先伟,李富豪,刘豫航,朱凯..低水泥胶凝材料的可打印性研究[J].河南城建学院学报,2026,35(2):73-81,9.基金项目
河南省高等学校重点科研项目计划(25B560017) （25B560017）
