改善完全分解的花岩土壤混凝土的机械性能,采用预设加压制造制造的混凝土
Yi Song1, Zhongqi Quentin Yue2,3, Yanlu Ding4
1Department of Civil Engineering, China University of Geosciences (Beijing), Beijing 100083, China.
Materials (Basel, Switzerland)
|September 14, 2024
概括
在混凝土中施加高压缩压力.
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.
- 混凝土技术 混凝土技术
背景情况:
- 传统的混凝土生产可能会导致内部空洞.
- 改善混凝土的机械性能对于结构完整性至关重要.
- 使用像完全分解的花岩 (CDG) 土壤这样的替代聚合物是一个感兴趣的领域.
研究的目的:
- 为了研究连续高压缩压力在初始设置期间对新鲜混凝土的影响.
- 为了评估使用完全分解的花岩 (CDG) 土壤作为混凝土中的聚合物的有效性.
- 为了确定预设压力对硬化混凝土机械性能和孔隙性的影响.
主要方法:
- 28个混凝土样品的制造,混合率,聚合物和压力应用参数各不相同.
- 应用了一种新型自行设计的试验装置,用于预设压力.
- 评估机械性能 (密度,单轴压力强度 - UCS) 和多孔性 (微型CT与图像分析).
主要成果:
- 10MPa的初始预设压缩有效地减少了新鲜混凝土中的多余空气和空隙.
- 压缩样本显示孔隙性显著减少 (73.11%86.53%).
- 与非压缩样本相比,压缩样本的密度增加了1.43%8.31%,UCS增加了8.42%187.43%.
结论:
- 连续高预设压缩压力提高了硬化混凝土的机械性能.
- 使用CDG土壤作为聚合物可用于生产改进的混凝土材料.
- 这项研究为优化混凝土制造通过预设压力应用提供了一个参考.
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