Visualized tracing of capillary absorption process in cementitious material based on X ray computed tomography (Publication with Expression of Concern)

被引：26

作者：

Hong, Shuxian ^{[1
]}

Qin, Shaofeng ^{[1
]}

Yao, Wanqiong ^{[1
]}

Guo, Bangwen ^{[1
]}

Hou, Dongshuai ^{[2
]}

Zhang, Yuxin ^{[1
]}

Liu, Wei ^{[1
]}

Li, Weiwen ^{[1
]}

Dong, Biqin ^{[1
]}

机构：

[1] Shenzhen Univ, Key Lab Durabil Civil Engn Shenzhen, Guangdong Prov Key Lab Durabil Marine Civil Engn, Shenzhen 518060, Peoples R China

[2] Qingdao Technol Univ, Qingdao 266000, Peoples R China

来源：

CEMENT & CONCRETE COMPOSITES | 2020年 / 107卷

基金：

中国国家自然科学基金;

关键词：

Cement; Capillary absorption; X-ray computed tomography (XCT); Water front; Moisture profile; C-S-H; NEUTRON-RADIOGRAPHY; WATER-ABSORPTION; TRANSPORT; NMR; CORROSION; DYNAMICS; CONCRETE; PASTE; PORE;

D O I：

10.1016/j.cemconcomp.2019.103487

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Moisture is one of the major deterioration factors of concrete. In this study, the capillary absorption process, which is one of the major transportation mechanism in cement paste, is non-destructively investigated by using X-ray computed tomography (XCT). A novel image processing procedure is proposed to correct the XCT image artifacts and calibrate the results of different measurements. The proposed image processing procedure allows for 3D visualization of the absorption process and additional information can be obtained, including the height of the water absorption front and the water content gradient.

引用

页数：13

共 42 条

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[42] Application of neutron radiography in observing and quantifying the time-dependent moisture distributions in multi-cracked cement-based composites [J].

Zhang, Peng ;

Wang, Penggang ;

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Zhao, Tiejun .

CEMENT & CONCRETE COMPOSITES, 2017, 78 :13-20

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