Meso-damage evolution analysis of magnesium oxychloride cement concrete based on X-CT and grey-level co-occurrence matrix

doi:10.1016/j.conbuildmat.2020.119373

IR > 土木工程学院

	Meso-damage evolution analysis of magnesium oxychloride cement concrete based on X-CT and grey-level co-occurrence matrix
	Wang, Penghui 1; Qiao, Hongxia1,2 ; Zhang, Yunsheng 1,3; Li, Yuanke 1; Feng, Qiong1 ; Chen, Kefan 1
	2020-09-20
发表期刊	Construction and Building Materials
ISSN	09500618
卷号	255
摘要	X-CT technology can be used to analyse the internal damage to concrete due to rust expansion. However, the original X-CT slice of the internal damage of the concrete can only be used to quantitatively analyse the internal damage in the specimen. The X-CT pictures of the concrete cannot deeply excavate the slight changes in the concrete specimens before and after damage due to rust expansion. As a texture feature analysis method, grey-level co-occurrence matrices (GLCM) have the ability to deeply mine the subtle grey-scale changes of original X-CT pictures. Therefore, this paper coupled X-CT and GLCM to analyse the internal damage in magnesium oxychloride cement concrete due to rust expansion. The four characteristic values of GLCM—contrast, correlation, energy and homogeneity—are used to reflect the internal concrete damage's evolution. The results show that there is a significant exponential relationship between the surface crack formation and the internal volume growth of the specimen. The contrast value gradually increases during the concrete damage process, while the correlation, energy and homogeneity values gradually decrease during this process, and these four eigenvalues all follow the normal distribution. By using these four characteristic values to analyse the reliability of concrete specimens, it is concluded that homogeneity can be better used to evaluate the internal damage of concrete specimens. The peak bandwidth of matrix in a color heat map decreases gradually and extends along the main diagonal of the matrix in the process of specimen damage that can be used to accurately reflect the damage to the concrete due to the rust expansion force. © 2020 Elsevier Ltd
关键词	Cements Eigenvalues and eigenfunctions Magnesium compounds Normal distribution Textures Characteristic value Co-occurrence-matrix Concrete specimens Grey level co-occurrence matrixes Internal damages Magnesium oxychloride cement Texture features X-CT technologies
DOI	10.1016/j.conbuildmat.2020.119373
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Construction & Building Technology ; Engineering ; Materials Science
WOS类目	Construction & Building Technology ; Engineering, Civil ; Materials Science, Multidisciplinary
WOS记录号	WOS:000539386100060
出版者	Elsevier Ltd
EI入藏号	20201908614172
EI主题词	Concretes
EI分类号	412 Concrete ; 412.1 Cement ; 922.1 Probability Theory
来源库	WOS
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/151023
专题	土木工程学院
通讯作者	Qiao, Hongxia
作者单位	1.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou, Gansu, Peoples R China; 2.Lanzhou Univ Technol, Key Lab Disaster Prevent & Mitigat Civil Engn Gan, Lanzhou, Peoples R China; 3.Southeast Univ, Sch Mat Sci & Engn, Nanjing, Peoples R China
第一作者单位	兰州理工大学
通讯作者单位	兰州理工大学
第一作者的第一单位	兰州理工大学
推荐引用方式 GB/T 7714	Wang, Penghui,Qiao, Hongxia,Zhang, Yunsheng,et al. Meso-damage evolution analysis of magnesium oxychloride cement concrete based on X-CT and grey-level co-occurrence matrix[J]. Construction and Building Materials,2020,255.
APA	Wang, Penghui,Qiao, Hongxia,Zhang, Yunsheng,Li, Yuanke,Feng, Qiong,&Chen, Kefan.(2020).Meso-damage evolution analysis of magnesium oxychloride cement concrete based on X-CT and grey-level co-occurrence matrix.Construction and Building Materials,255.
MLA	Wang, Penghui,et al."Meso-damage evolution analysis of magnesium oxychloride cement concrete based on X-CT and grey-level co-occurrence matrix".Construction and Building Materials 255(2020).