Visualization of Penetration of NanoSiO2 into Cement Paste Using X-ray Computed Tomography

被引：1
|
作者：
Gu, Yue [1 ,3 ]
Ran, Qianping [3 ]
Wei, Zhenhua [4 ]
She, Wei [2 ]
Liu, Jiaping [2 ,3 ]
机构：
[1] Hohai Univ, Coll Mech & Mat, Nanjing 210098, Jiangsu, Peoples R China
[2] Southeast Univ, Sch Mat Sci & Engn, Nanjing 210008, Jiangsu, Peoples R China
[3] State Key Lab High Performance Civil Engn Mat, Nanjing 210008, Jiangsu, Peoples R China
[4] Univ Calif Los Angeles, Dept Civil & Environm Engn, Los Angeles, CA 90095 USA
来源：
NANOSCIENCE AND NANOTECHNOLOGY LETTERS | 2018年 / 10卷 / 01期
基金：
中国国家自然科学基金;
关键词：
NanoSiO(2); Surface Treatment; Cement; X-ray Technique; SURFACE-TREATMENT;
D O I：
10.1166/nnl.2018.2590
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The penetration of nanoSiO(2) (NS) into cementitious materials to fill the capillary pores is a basic hypothesis when NS is used as a kind of surface-treatment agent. This hypothesis still needs direct experimental evidence. In this study, X-ray computed tomography (X-ray CT) was applied to visualize NS transport in the surface treatment process. The quantitative measurements were made to show that the penetration depth of NS is around 8 mm. The agglomeration phenomenon of NS was observed directly. The results provide insight into the interpretation of the filling effect, and present a new methodology to evaluate the effectiveness of nanoparticle surface-treatment agents akin to NS.
引用
收藏
页码：135 / 137
页数：3
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