对高强度酸水泥复合材料的纤维-织物等级增强的研究
Weipeng Feng1, Yuan Fang2,3, Chengman Wang2
1Institute of Technology for Future Industry, School of Science and Technology Instrument Application Engineering, Shenzhen University of Information Technology, Shenzhen 518172, China.
Polymers
|November 13, 2025
概括
这项研究通过添加混合纤维和碳纤维增强聚合物 (CFRP) 织物来增强酸水泥 (MPC),显著提高其性和抗裂性能,用于建筑应用.
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.
- 建筑材料 建筑材料
背景情况:
- 酸水泥 (MPC) 提供快速定位和高初始强度,使其适用于专业建筑.
- MPC的一个主要限制是其固有的脆性,这限制了其结构性能和长期耐用性.
- 现有的强化策略往往无法有效地解决跨多个规模的裂纹控制问题.
研究的目的:
- 开发和评估使用协同增强的MPC创新的强化战略.
- 研究混合纤维和碳纤维增强聚合物 (CFRP) 织物对MPC机械性能的影响.
- 建立定量设计准则,以优化MPC的性和弹性性能.
主要方法:
- 混合纤维系统的系统实验评估,包括剂量和CFRP定位.
- 对7天固化样本进行机械测试,以评估曲和压力强度.
- 断裂分析以了解微观和宏观尺度上的裂桥梁机制.
主要成果:
- 3.5%的混合纤维剂量优化了曲-压缩平衡,产生了45%的曲增益,压缩减少不到20%.
- 在19毫米位移的CFRP整合通过多尺度增强显著提高了曲能力.
- 联合纤维-CFRP系统通过协调裂桥梁将裂后强度提高了60%,将MPC的裂行为从脆性转变为准柔性.
结论:
- 混合纤维和CFRP的协同增强有效地通过分层裂控制来缓解MPC的脆弱性.
- 开发的复合材料系统保持了MPC的快速硬化优势,同时显著提高了其损坏耐受性.
- 建立了定量设计准则,证明了先进的MPC复合材料在专业建筑和快速维修场景中的潜力.
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