在单轴压缩下对混凝土和泡水泥复合材料的机械性能进行实验研究
Yue Cao1, Zheng Kong2, Yadong Zheng3
1School of Mining Engineering, China University of Mining and Technology, Xuzhou, 221116, China.
Scientific reports
|July 2, 2025
概括
这项研究探讨了混凝土泡混凝土复合材料 (C-FCCS). 较高的混凝土含量增强了C-FCCS,而较高的泡水泥含量影响了峰值应变和故障模式,揭示了关键的机械性能.
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.
- 复合材料 复合材料 复合材料
背景情况:
- 混凝土泡混凝土复合物 (C-FCCS) 在建筑中越来越多地被使用.
- 在单轴压缩下了解它们的机械性能对于结构完整性至关重要.
- 不同的泡水泥比例和强度对C-FCCS行为的影响需要详细调查.
研究的目的:
- 研究C-FCCS的机械性能,重点关注峰值压力强度和峰值应变.
- 分析C-FCCS.的宏观故障形态和声辐射 (AE) 特性.
- 为了确定C-FCCS特性与泡水泥的比例/强度之间的相关性.
主要方法:
- 在C-FCCS上进行了单轴压缩测试,使用不同的泡水泥比例和强度.
- 分析包括峰值压力强度,峰值应变,故障形态和声学发射 (AE) 数据.
- 高度比 (泡水泥高度/C-FCCS高度) 是应变分析中的一个关键参数.
主要成果:
- 峰值压力强度与泡水泥比例负相关,与混凝土比例正相关.
- 泡水泥强度对压力强度的影响很小,但对峰值应变的影响很大.
- 峰值应变随高度比增加到一个点,然后减少;AE能量分布随着泡水泥含量而变化.
结论:
- C-FCCS的机械性能受到混凝土与泡水泥的比率的显著影响.
- 故障模式主要是拉伸式,在接口上有局部剪切故障.
- 声波排放分析提供了不同负载条件下的故障机制的见解.
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