评估基于聚氨和钢筋纤维的混凝土涂层复合材料的性能
Venilton Menezes Vieira Ferreira1, Jhonatan Bispo de Oliveira1, Ângelo Rocha de Oliveira2
1Chemistry Department, Centro Federal de Educação Tecnológica de Minas Gerais, CEFET-MG, Av. Amazonas 5253, 30421-169, BH-MG, Brazil.
Heliyon
|February 1, 2024
概括
纤维增强聚合物 (FRP) 涂层显著提高了混凝土的机械性能. 不同类型的纤维,包括来自回收材料的阿拉米德,提高了电力分配杆的屈曲强度和性.
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.
- 聚合物科学 聚合物科学
背景情况:
- 混凝土结构,特别是配电杆,需要增强的机械性能,以保持耐用性.
- 纤维增强聚合物 (FRP) 为加固混凝土提供了一个潜在的解决方案.
- 使用回收材料,如弹道服装中的阿拉米德织物,是一种可持续的方法.
研究的目的:
- 评估各种纤维增强聚合物 (FRP) 涂层对混凝土机械性能的影响.
- 为了研究碳,玻璃,混合纤维和阿拉米德纤维在混凝土钢筋的聚氨矩阵中的有效性.
- 评估FRP涂层的性能,这些涂层来自回收的阿拉米德织物.
主要方法:
- 在FRP钢筋混凝土样本上进行了曲,Charpy冲击和粘附测试.
- 雇员扫描电子显微镜 (SEM) 用于分析冲击测试材料的断裂区域.
- 使用废弃弹道服装和聚氨矩阵的阿拉米德织物制造的FRP.
主要成果:
- 所有测试的FRP织物都明显提高了混凝土样品的屈曲强度和性.
- 纤维类型之间的性能差异与它们的化学结构和与聚氨矩阵的界面相互作用有关.
- SEM分析提供了有关故障机制和物质在冲击下的行为方面的见解.
结论:
- 纤维增强聚合物 (FRP) 涂层显著提高了混凝土结构的机械性能.
- 纤维类型的选择会影响由于特定的材料特性和矩阵相互作用而增强的程度.
- 回收的阿拉米德织物可以有效地用于FRP涂层,为混凝土应用提供可持续的增强选项.
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