半实时红外热成像技术用于检测室内抹灰凝固过程中的分层缺陷

IF 2.6 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Ruizhuo Wan, Hao Zhao, Qingrui Zhang, Pengfei Zheng, Zhaoyuan Zhong, Chengcheng Xue, Liang Huang
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引用次数: 0

摘要

在抹灰凝固过程中,及时发现分层缺陷对于减少后期检查和维护费用至关重要。传统的缺陷检测方法虽然广泛使用,但效率低下,而且会损坏墙体。本研究提出了一种创新方法,利用红外热成像技术(IRT)对凝固阶段的分层缺陷进行半实时检测。该方法在两种不同抹灰(水泥和石膏,根据需要现场混合,不预先配料,单层涂抹)涂抹后的 48 小时内使用,系统地检查了抹灰成分和环境温度条件的影响。结果表明,所有预设缺陷都被成功识别。据观察,在给定厚度的情况下,较大的缺陷更容易被发现,反之,在固定尺寸的情况下,较厚的缺陷更容易被识别,缺陷的尺寸对绝对对比度的影响比其厚度更明显。值得注意的是,水泥抹灰在缺陷检测方面表现出两个不同的时间窗口,主要受环境温度的影响。与此相反,石膏灰泥则呈现出两个检测阶段,初始阶段主要受水化热的影响,而后一阶段则受环境温度条件的影响。IRT 技术在这项研究中的应用证明了它在准确检测石膏凝固过程中的分层缺陷方面的功效。这种方法为抹灰层在实际工程中的应用提供了宝贵的见解和指导,有可能降低维护成本,提高施工质量。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Semi-real-time infrared thermography for detecting layering defects in plasters solidification within indoor environments
In the solidification of plasters, promptly identifying layering defects is vital to reduce later inspection and maintenance expenses. Traditional tapping methods for defect detection, while widespread, are inefficient and can damage walls. This study proposes an innovative method utilizing Infrared Thermal Imaging (IRT) for semi real-time detection of layering defects during the solidification phase. The method was applied within the first 48 h following the application of two different plasters (Cement and Gypsum, mixed on-site as needed, not pre-dosed, and applied in a single layer), systematically examining the effects of plaster composition and environmental temperature conditions. The results showed that all preset defects were successfully identified. It was observed that larger defects are more readily detectable at a given thickness, and conversely, thicker defects are more discernible at a fixed size, with the dimension of the defect having a more pronounced impact on absolute contrast than its thickness. Notably, cement plaster exhibited two distinct temporal windows for defect detection, primarily influenced by environmental temperatures. In contrast, gypsum mortar presented two detection phases, with the initial phase being predominantly governed by the heat of hydration and the latter by ambient temperature conditions. The application of IRT technology in this research demonstrates its efficacy in accurately detecting layering defects during the solidification of plasters. This method offers valuable insights and guidance for the application of plaster layers in real-world engineering scenarios, potentially reducing maintenance costs and improving construction quality.
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来源期刊
Frontiers in Materials
Frontiers in Materials Materials Science-Materials Science (miscellaneous)
CiteScore
4.80
自引率
6.20%
发文量
749
审稿时长
12 weeks
期刊介绍: Frontiers in Materials is a high visibility journal publishing rigorously peer-reviewed research across the entire breadth of materials science and engineering. This interdisciplinary open-access journal is at the forefront of disseminating and communicating scientific knowledge and impactful discoveries to researchers across academia and industry, and the public worldwide. Founded upon a research community driven approach, this Journal provides a balanced and comprehensive offering of Specialty Sections, each of which has a dedicated Editorial Board of leading experts in the respective field.
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