基于多固体废物协同激活的3D打印体混凝土的强度提升
Junjie Li1, Yangbo Li1, Xianqiang Ge2
1College of Hydraulic and Environmental Engineering, China Three Gorges University, Yichang 443002, China.
Materials (Basel, Switzerland)
|February 13, 2026
概括
这项研究通过开发3D打印的PG混凝土 (3DPPGC) 来增强合石膏 (PG) 的利用. 最佳的混合设计与补充的混凝土材料显著提高了可持续建筑应用的机械性能.
科学领域:
- 材料科学 材料科学 材料科学
- 土木工程 土木工程是指土木工程.
- 环境科学 环境科学
背景情况:
- 石 (PG) 是一个主要的工业副产品,利用率低,造成环境问题.
- 3D打印混凝土 (3DPC) 提供了新的建筑可能性,但PG集成需要进一步的研究.
- 了解多种废物系统中的协同效应对于高价值的PG应用至关重要.
研究的目的:
- 为了研究3D打印的合体混凝土 (3DPPGC) 可持续建筑的可行性.
- 为了优化3DPPGC的混合比例,以提高机械性能.
- 阐明基于PG的复合材料中的强化机制,用于高价值应用.
主要方法:
- 设计和制造的3DPPGC标本具有不同的水泥替代比率 (CRR).
- 进行实验测试以确定最佳的CRR和评估机械性能.
- 分析了开发的复合材料的微观结构和强度增强机制.
主要成果:
- 发现3DPPGC的最佳水泥替代比率 (CRR) 是70%.
- 3DPPGC在y方向实现了28天的4.69 MPa的屈曲强度,比造样品增加了1.52%.
- 将PG与高炉渣,飞灰和烟相结合,显著改善了早期和后期的强度.
结论:
- 3DPPGC展示了在智能建筑中高价值石材利用的潜力.
- 优化的混合设计和补充材料增强了基于PG的3D打印混凝土的机械性能.
- 这项研究为PG在可持续建筑材料中的大规模应用提供了基础.
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