具有吸收和存储功能的海绵结构水泥糊孔结构的设计
Tong Li1,2, Guojun Du1, Hefang Zhang3
1Key Laboratory of Mechanical Reliability for Heavy Equipment and Large Structures of Hebei Province, Yanshan University, Qinhuangdao 066004, China.
Materials (Basel, Switzerland)
|December 31, 2025
概括
这项研究开发了一种新型的海绵结构水泥糊,使用飞灰和渣来增强混凝土的透性.
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.
- 可持续的建筑材料 可持续的建筑材料
背景情况:
- 传统的混凝土在水资源管理方面存在局限性.
- 透水混凝土提供排水,但可以有有限的水储量.
- 矿物添加剂,如飞灰和渣,可以改善水泥材料.
研究的目的:
- 使用飞灰和渣渣开发一种海绵结构的水泥糊,以提高透水混凝土的吸水和储存能力.
- 为了研究矿物质添加剂比率对糊的机械和与水有关的特性的影响.
- 分析孔隙结构与水性能之间的关系.
主要方法:
- 制备具有海绵结构的水泥糊,含有不同比例的飞灰,渣渣和水泥.
- 测试机械强度 (压力强度).
- 评估毛细血管吸收和体积水储容量.
- 使用BET,SEM,IPP和MIP进行毛孔结构分析.
主要成果:
- 确定了最佳的混合比例 (70%飞灰,10%渣,20%水泥),以获得优越的压力强度和储水能力.
- 建议采用标准固化,而不是水浴固化,以获得最佳的水吸收.
- 毛细管孔体积 (100-1000nm) 和水的吸收/储存之间存在正相关性.
- 建立了一个指数模型,将飞灰含量与毛细血管孔含量联系起来.
结论:
- 海绵结构的水泥糊有效地提高了透混凝土的水处理能力.
- 毛孔结构,特别是毛细血管毛孔,在吸收和储存水中起着至关重要的作用.
- 这项研究为开发可持续的,保持水分的透水混凝土提供了途径.
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