北京建筑大学学报2025，Vol.41Issue(4)：45-53,9.DOI:10.19740/j.2096-9872.2025.04.06
固废基3D打印制品成型与应用技术研究
Research on the Formation and Application Technology of Solid Waste-Based 3D Printed Products
摘要
Abstract
This study focuses on the high-value utilization of construction waste through resource recovery and proposes a solid waste additive manufacturing process route based on red brick recycled micro-powder.Through graded crushing,precise screening and moisture content control,efficient pretreatment of raw materials is achieved.In the material compounding process,a fixed water-binder ratio(0.35)and cement-sand ratio(0.5)are maintained,and the recycled sand is pre-wetted to ensure workability.Laboratory printing adopts a specially formulated ratio(cement 26％,recycled micro-powder 3％,recycled sand 58％,supplemented with fibers and various functional additives),explores printing parameters,and explores industrial-scale printing solutions.The research shows that this process successfully solves the problems of particle size control and molding stability in solid waste additive manufacturing.The solid waste content in the entire process is＞60％.A complete system from solid waste pretreatment,micro-powder preparation,material optimization design to structural molding printing and standardized curing has been established at both the laboratory and factory levels,achieving the efficient conversion of construction waste into customizable,high-performance 3D printed products.This provides a feasible technical paradigm and practical support for the large-scale production and low-carbon development of solid waste-based green building materials.关键词
3D打印/低碳型/固废再利用/红砖微粉/增材制造Key words
3D printing/low carbon type/reuse of solid waste/red brick micro powder/additive manufacturing分类
建筑与水利引用本文复制引用
周华杰,梁晓波,杨帅..固废基3D打印制品成型与应用技术研究[J].北京建筑大学学报,2025,41(4):45-53,9.基金项目
中国中冶"181计划"重大研发项目. （）
