期刊
CONSTRUCTION AND BUILDING MATERIALS
卷 186, 期 -, 页码 182-190出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.conbuildmat.2018.07.145
关键词
Nondestructive monitoring; X-ray computed tomography; Cement paste; Damage process; Sulfate attack
资金
- National Basic Research Program of China (973 Program) [2015CB655102]
- National Natural Science Foundation of China [51778613]
X-ray computed tomography (X-ray CT) method is proposed to in situ monitoring the damage process of cement paste containing different water-to-cement ratio (0.55, 0.40) exposed to sodium sulfate solution. In addition, the corrosion products were analyzed by X-ray diffraction (XRD). The results show that X-ray CT can track the time-dependent development of cement paste exposed to sodium sulfate solution. Furthermore, the information of cracks spatial distribution, gray values, corrosion depth and pore volume distribution can be clearly obtained by this method. Additionally, XRD results show that the main corrosion products of the cement paste with high water-to-cement ratio are ettringite and gypsum in the later stage. (C) 2018 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据