探索工程水泥复合材料的3D打印能力,用于干旱地区的弹性建筑
Tayyab Zafar1, Muhammad Saeed Zafar1, Maryam Hojati1
1Gerald May Department of Civil, Construction, & Environmental Engineering, University of New Mexico, Albuquerque, NM 87131, USA.
Materials (Basel, Switzerland)
|July 30, 2025
概括
这项研究探讨了可3D打印的工程混凝土复合材料 (ECCs),使用石在干旱地区进行内部固化. 用石增强的ECC显示出有希望的打印性和可建性,适合可持续建筑.
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.
- 可持续建筑 可持续建筑
背景情况:
- 工程混凝土复合材料 (ECC) 对于可持续建筑至关重要.
- 干旱地区的水资源短缺需要创新的内部固化方法.
- 轻质聚合物 (LWA) 具有提高材料性能和性能的潜力.
研究的目的:
- 调查使用石作为3D打印可用的ECC中的内部固化剂的可行性.
- 评估石在ECC的可打印性和可建造性的影响.
- 通过用渣渣部分替代水泥,并加入聚乙烯纤维来增强ECC的可持续性.
主要方法:
- 部分取代河流沙以预浸的石轻质聚合物 (LWA),体积分别为30%和60%.
- 部分用渣渣取代水泥 (50%),添加聚乙烯 (PE) 纤维 (2%) 和甲基纤维素 (MC) (1%).
- 使用3D门架打印系统评估三种ECC混合物的流动性,质性,挤出性 (维度一致性,CV%) 和可构建性 (最大堆叠层).
主要成果:
- 所有测试的ECC混合物都符合挤出性标准 (CV<5%).
- 与30%石 (P30-PE2-6-10) 的混合物表现出优越的打印质量和可建性,实现了16个堆叠的层.
- 对照混合物实现了18个堆叠的层,表明30%的石混合物和对照之间的可比性可建性.
结论:
- 基于石的内部固化对于可3D打印的ECC是可行的,为干旱环境提供了可持续的解决方案.
- 结合石灰质轻质聚合物 (LWA) 有积极影响工业混凝土复合材料 (ECC) 的可打印性和可建造性.
- 开发的ECC混合物显示出在3D打印应用中使用的潜力,这些应用需要增强的学稳定性和机械特性.
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