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

被引：22

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 4 条

[1] Water distribution modelling of capillary absorption in cementitious materials (Publication with Expression of Concern)
Zhang, Jianchao
Hong, Shuxian
Dong, Biqin
Tang, Luping
Lin, Chen
Liu, Zhichao
Xing, Feng
CONSTRUCTION AND BUILDING MATERIALS, 2019, 216 : 468 - 475
[2] X-Ray computed tomography and traditional analysis of a capillary absorption test in cement pastes
Andrade, Carmen
Saucedo, Luis
Rebolledo, Nuria
Cabeza, Sandra
Meinel, Dietmar
CEMENT & CONCRETE COMPOSITES, 2020, 113 (113):
[3] Damage characterization of pouring semi-flexible pavement material under triaxial compressive load based on X-ray computed tomography
Ling, Senlin
Itoua, Prince Igor
Sun, Daquan
Jelagin, Denis
CONSTRUCTION AND BUILDING MATERIALS, 2022, 348
[4] Continuous and discrete methods based on X-ray computed-tomography to model the fragmentation process in brittle solids over a wide range of strain-rates-application to three brittle materials
Forquin, P.
Blasone, M.
Georges, D.
Dargaud, M.
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2021, 152

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