混凝土复合材料的机械性能增强与混合聚烯纤维增强混凝土复合材料的机械性能
Chiang Ti Tan1, Ming Kun Yew2, Ming Chain Yew3
1Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Bandar Sungai Long, Cheras, 43000, Kajang, Malaysia.
Scientific reports
|July 10, 2025
概括
本研究使用三种聚烯 (PP) 纤维类型增强混合纤维增强混凝土. 混合PP纤维显著提高机械性能,提供可持续的,耐用的建筑材料.
科学领域:
- 土木工程 土木工程是指土木工程.
- 材料科学 材料科学 材料科学
- 混凝土技术 混凝土技术
背景情况:
- 混合纤维增强混凝土提供了增强的机械性能和耐久性.
- 关于混凝土中包含三种不同的纤维类型的研究有限.
- 聚烯 (PP) 纤维越来越多地被用于混凝土钢筋.
研究的目的:
- 研究混合三种聚烯 (PP) 纤维类型 (宏,巴芯片,单纤维) 对混凝土性能的影响.
- 评估不同PP纤维体积分 (0-0.3%) 对机械性能的影响.
- 评估使用再生花岩粉作为细聚合物的替代品的可持续性方面.
主要方法:
- 混凝土混合物是用不同体积分数的宏观,巴芯片和单纤维PP纤维制成的.
- 回收花岩粉被用于部分取代细聚合物.
- 测试了机械性能 (压力,分裂拉力,屈曲强度),可加工性 (沉降,韦伯时间),超声波脉冲速度 (UPV) 和微观结构 (SEM).
主要成果:
- 增加PP纤维体积分数显著改善了机械性能.
- 在0.3%体积分数的麦克罗-巴奇普-单纤维 (MBM) PP纤维混合物中显示出优越的强度增长 (4.84-15.83%).
- 可加工性显著下降,而混凝土质量和微观结构粘合性得到改善.
结论:
- 混合PP纤维增强增强了混凝土的机械强度和耐久性.
- 宏观,巴芯片和单纤维PP纤维的组合为混凝土性能提供了协同效益.
- 这种混合纤维增强混凝土为可持续和耐用建筑材料提供了一个有希望的途径.
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