最佳混合设计和对透混凝土的相关性分析
Fenting Lu1, Li Yang1, Yaqing Jiang1
1School of Civil Engineering, Wanjiang University of Technology, Ma'anshan 243031, China.
Materials (Basel, Switzerland)
|September 13, 2025
概括
这项研究优化了透式混凝土混合物设计,平衡了透性和强度. 最佳组合实现了高压力强度和透性,为可持续基础设施提供了框架.
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
- 可持续的基础设施可持续的基础设施
背景情况:
- 穿透式混凝土面临着穿透性和机械强度之间的权衡.
- 优化混合设计对于平衡这些属性至关重要.
研究的目的:
- 系统地优化透式混凝土混合物设计,以平衡透性和机械强度.
- 为了建立混合参数,多孔性和性能之间的定量关系.
主要方法:
- 单元实验和L9(3^3) 直角阵列测试.
- 评估目标孔隙度,水-水泥比率,沙率和VMA剂量.
- 斯皮尔曼等级相关性和非线性回归分析.
主要成果:
- 增加的多孔性增加了透性,但降低了强度.
- 确定了0.32的最佳w/c比,6%的沙含量和0.01%的VMA剂量.
- 最佳的混合物 (w/c=0.3,VMA=0.12%,多孔性=14%,沙=7%) 产生了43.5 MPa的压力强度和2.57 mm/s的透度.
结论:
- 导出了孔隙性和性能 (透性,强度) 之间的经验关系.
- 建立了一个系统的框架来设计高性能透水混凝土.
- 这些发现支持开发绿色基础设施的透水混凝土.
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