用离散纤维增强的环氧基聚合物砂的机械和超声波评估
1Department of Civil Engineering, College of Engineering, Qassim University, Buraidah 52571, Saudi Arabia.
Polymers
|May 14, 2025
概括
这项研究探讨了纤维增强聚合物砂 (FRPM) 用于可持续建筑. 低纤维剂量,特别是0.5%,显著提高了机械性能和材料效率,使FRPM成为传统材料的可行替代品.
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:
- 聚合物砂 (PM) 提供了结构应用的潜力.
- 提高PM的机械性能和耐用性对于可持续建筑至关重要.
- 研究PM中的纤维增强可以改善材料性能并减少对环境的影响.
研究的目的:
- 研究离散纤维类型对超声波脉冲速度 (UPV) 和以环氧基聚合物砂 (PM) 的机械性能的影响.
- 评估纤维增强聚合物砂 (FRPM) 作为可持续建筑材料的潜力.
- 为质量控制建立UPV和机械强度之间的相关性.
主要方法:
- 四种纤维类型 (聚烯,枣树叶,玻璃,碳) 被添加到PM中,体积分为0.5%,1.0%和1.5%.
- 进行了超声波脉冲速度 (UPV) 测试,以评估内部质量和均性.
- 进行了压力和屈曲强度测试,以评估机械性能.
主要成果:
- 纤维类型和剂量显著影响了FRPM的机械行为.
- 对于大多数纤维类型,UPV与压力强度有很强的正相关性,这证明了它作为一种非破坏性指标的有效性.
- 0.5%的玻璃纤维获得了最高的压力强度 (54.4 MPa),而1.5%的碳和玻璃纤维则产生了最大的屈曲强度增强 (15 MPa).
结论:
- 低纤维剂量 (0.5%) 有效提高FRPM的机械性能和材料效率.
- FRPM证明了其作为传统水泥材料的耐用和可持续替代品的潜力.
- 像棕树叶这样的天然纤维提供了环境效益,以及适度的性能改善.
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