用氧化物纳米粒子泡混凝土的机械,耐用性和微观结构性质的全面评估
Md Azree Othuman Mydin1, Nadhim Hamah Sor2, Mohd Mustafa Al Bakri Abdullah3,4
1School of Housing, Building and Planning, Universiti Sains Malaysia, Penang, 11800, Malaysia. azree@usm.my.
Scientific reports
|November 25, 2025
概括
氧化纳米颗粒 (ZP-NP) 显著提高了泡混凝土 (FC) 的性能. 最佳2重%的ZP-NP提高了机械强度和导热性,同时降低了多孔性,提高了FC的整体性能.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术 纳米技术
- 土木工程 土木工程是指土木工程.
背景情况:
- 纳米级材料为增强水泥复合材料提供独特的特性.
- 泡混凝土 (FC) 受益于纳米粒子的结合,以填补空隙并提高性能.
- 氧化纳米颗粒 (ZP-NP) 具有优化FC特性的潜力.
研究的目的:
- 研究ZP-NP对FC的热和机械性能的影响.
- 为了确定最佳的ZP-NP度以提高FC性能.
- 分析ZP-NP对密度,设置时间,可加工性和收缩的影响.
主要方法:
- 配制具有不同ZP-NP度 (1-4 wt%) 的FC混合物.
- 实验评估导热性,机械强度 (压力,拉力,曲),密度和孔隙性.
- 微观结构分析使用扫描电子显微镜 (SEM) 和侵入孔径学 (MIP).
主要成果:
- 2重%的最佳ZP-NP度提高了高达60.92%的压力强度和62.5%的分裂拉伸强度.
- 导热率增加到0.345 W/m·K,使用2 wt%的ZP-NP.
- 干燥密度增加了5.3%,孔隙性减少了6.66%在2重%的ZP-NP下,微结构分析显示了更密集的矩阵和更小的孔径.
- 较高的ZP-NP度导致性能平稳或由于聚合和浸而略有下降.
结论:
- ZP-NP有效地增强了FC的机械和热性能.
- 显著改善的最佳ZP-NP剂量为2重%.
- 采用 ZP-NP 改进了孔隙结构,从而提高了整体 FC 性能.
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