修改含有粉碎混凝土废物的建筑混合物的特性,用于3D打印
Vitaliy Marchuk1, Ruslan Makarenko1, Leonid Dvorkin1
1Institute of Civil Engineering and Architecture, National University of Water and Environmental Engineering, 33028 Rivne, Ukraine.
Materials (Basel, Switzerland)
|March 14, 2026
概括
这项研究表明,将碎混凝土废物作为3D打印建筑混合物中的活性矿物添加剂,增强了多功能添加剂,改善了机械性能和可持续性. 这种方法优化了建筑材料,以实现有效的3D打印应用.
科学领域:
- 建筑材料科学 建筑材料科学
- 可持续工程 可持续工程
- 添加剂制造 添加剂制造 添加剂制造
背景情况:
- 建筑垃圾,特别是压碎的混凝土,面临着处置挑战,并代表着一个有价值的资源.
- 建筑中的3D打印 (3DPC) 需要专门的建筑混合物,具有量身定制的风学和机械性能.
- 活性矿物添加剂可以增强水泥材料,但它们在3DPC中的有效使用需要进一步研究.
研究的目的:
- 评估从碎混凝土废弃物中制成的混凝土粉末作为3D打印建筑混合物中的活性矿物添加剂的有效性.
- 为了研究复杂的多功能添加剂对3D打印的水泥糊和砂的影响.
- 在先进的建筑应用中优化利用回收混凝土的技术参数.
主要方法:
- 对含有压碎混凝土废物的水泥糊和砂进行实验研究.
- 使用复杂的多功能添加剂 (以纳夫他林-甲为基础的超级可塑剂和基乙基甲基纤维素).
- 应用数学实验规划和统计建模来分析机械性能.
主要成果:
- 复杂的添加剂对水泥糊的正常一致性和粘度产生了积极的影响.
- 这种添加剂可以调节水泥砂的定时间和塑性强度.
- 实验统计模型证实了添加剂在所需范围内控制水分离,压力和屈曲强度的能力.
- 该研究成功地证明了使用压碎混凝土废料作为3D打印混合物中的活性矿物添加剂的可行性.
结论:
- 将粉碎混凝土废料作为活性矿物添加剂,与复杂的多功能添加剂相结合,显著提高了用于3D打印的建筑混合物的性能.
- 这种方法为利用建筑和拆除废物提供了一个可持续和经济可行的解决方案.
- 这些发现为开发生态效和高性能建筑材料的新途径开辟了道路,用于建筑中的增材制造.
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