关于直角优化的机械性能和修改机制的研究 基于水泥的复合材料薄喷雾在线线器的优化
Diantao Zheng1,2, Xinming Chen1,2, Huazhe Jiao1,2
1Henan Key Laboratory of Underground Engineering and Disaster Prevention and Control, Henan Polytechnic University, Jiaozuo 454003, China.
Materials (Basel, Switzerland)
|May 7, 2025
概括
一种新的基于复合水泥的薄喷涂面 (TSL) 增强了煤矿道路支. 添加烯酸乳液,玄武岩纤维和粉可以显著提高抗拉强度和强度,以应对大型变形挑战.
科学领域:
- 材料科学 材料科学 材料科学
- 采矿工程 采矿工程 采矿工程
- 土木工程 土木工程是指土木工程.
背景情况:
- 基于普通水泥的薄喷涂层 (TSL) 具有不足的拉力强度和性,无法满足煤矿道路支的要求.
- 煤矿路面的巨大变形需要先进的岩石支解决方案.
研究的目的:
- 通过修改普通波特兰水泥,开发一种基于水泥的高性能复合TSL.
- 确定添加剂的最佳比例,以改善物理和机械性能.
- 阐明性能提升背后的微观机制.
主要方法:
- 用烯酸乳液,玄武岩纤维和粉修改普通波特兰水泥.
- 坐标测试和范围分析以研究属性变化.
- 微观分析以了解修饰机制.
主要成果:
- 最佳的复合TSL比率包括1.75的聚合物-水泥比率,1%的玄武岩纤维和3%的粉.
- 获得的性能包括20,000 mps的粘度,121%的延长,2.28 MPa的拉伸强度和1.66 MPa的粘合强度在28天内.
- 复合材料修改创建了一个3D网络结构,减少了孔隙性,抑制了裂传播,并增强了矩阵延长.
结论:
- 与传统的TSL相比,开发的基于复合水泥的TSL表现出明显改善的机械性能.
- 烯酸乳液,玄武岩纤维和粉的协同效应对于提高TSL性能至关重要.
- 这项研究为创建用于具有挑战性的地下环境的基于复合水泥的先进TSL提供了理论基础.
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