实验研究水插水性能的接混凝土裂的实验研究
Lianzhen Zhang1, Changxin Huang2, Zhipeng Li3
1College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China.
Materials (Basel, Switzerland)
|April 13, 2024
概括
环氧树脂在密封混凝土裂方面表现出优异的性能,与聚氨和水泥基粘合剂相比. 最佳的接压力和材料特性显著影响水接插件的有效性.
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.
- 地质技术工程 地质技术工程
背景情况:
- 混凝土结构容易发生裂,导致水泄漏问题.
- 有效的裂纹接对于保持结构完整性和防止水损伤至关重要.
研究的目的:
- 评估和比较四种不同的接材料的防水性能:普通波特兰水泥,超细水泥,聚氨和环氧树脂.
- 调查裂参数,合物特性和合压力对裂密封的有效性的影响.
主要方法:
- 通过模拟试验准备合混凝土裂纹样本.
- 无性测试,以评估水堵塞性能.
- 使用扫描电子显微镜 (SEM) 和计算机断层扫描 (CT) 的微结构分析.
主要成果:
- 透度排名:环氧树脂 > 聚氨 > 超细水泥 > 普通波特兰水泥.
- 环氧树脂表现出最高的堵塞失败水压和最低的透性,使其成为最佳选择.
- 粘合剂的有效性随着压力达到一个值 (1MPa用于水泥,2MPa用于化学粘合剂) 增加.
- 基于水泥的料在0.8.8的水-水泥比率下表现最好.
- 裂口和粗度影响了水泥和聚氨合剂,但不影响环氧树脂.
结论:
- 环氧树脂是混凝土裂水堵塞最有效的接材料.
- 接压力,材料类型和裂纹特性是影响密封性能的关键因素.
- 了解微观结构行为有助于解释接材料之间的宏观性能差异.
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