基于数字图像技术对Nano-SiO2改性混凝土力学性能的研究
Study on Mechanical Properties of Nano-SiO2Modified Concrete Based on Digital Image Technology
DOI: 10.12677/NAT.2020.104008, PDF,   
作者: 张昆昆*, 马卫卫, 蒋 伟：西京学院，土木工程学院，陕西 西安；陕西省混凝土结构安全与耐久性重点实验室，陕西 西安
关键词: 数字图像处理技术；纳米改性混凝土；Match ID软件；位移场； Digital Image Processing Technology； Nano-Modified Concrete； Match ID Software； Displacement Field
摘要: 通过数字图像处理技术(DIC)，对不同含量(0.8%、1.0%、1.5%、2.0%)纳米改性混凝土进行抗压试验，采用CCD低速摄像机对试样加载过程实时监测，并基于Match ID软件分析不同荷载下位移场U的变化规律以及裂纹开展区域不同坐标的位移量的变化规律。研究表明：在不同含量的纳米改性混凝土抗压试验中，含量为2.0%时混凝土强度较高。在出现裂纹之前，位移变化较小，裂纹开展到最终破坏，位移变化较大。
Abstract: Through digital image processing technology (DIC), the compressive test of nano-modified concrete with different content (0.8%, 1.0%, 1.5%, 2.0%) is carried out, and the CCD low-speed camera is used to monitor the sample loading process in real time, and is based on Match ID. The software analyzes the changing law of the displacement field U under different loads and the changing law of the displacement of different coordinates in the crack development area. Research shows that in the compressive test of nano-modified concrete with different content, the concrete strength is higher when the content is 2.0%. Before the crack appears, the displacement change is small, and the crack develops to the final failure, the displacement change is larger.
文章引用：张昆昆, 马卫卫, 蒋伟. 基于数字图像技术对Nano-SiO2改性混凝土力学性能的研究[J]. 纳米技术, 2020, 10(4): 59-68. https://doi.org/10.12677/NAT.2020.104008

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