Quick water movement around concrete cracks under unsaturated conditions

被引：11

作者：

Tsuchiya, Naoko ^{[1
]}

Kanematsu, Manabu ^{[2
]}

Noguchi, Takafumi ^{[3
]}

机构：

[1] Bldg Res Inst, Dept Bldg Mat & Components, Tsukuba, Ibaraki 3050802, Japan

[2] Tokyo Univ Sci, Fac Sci & Technol, Noda, Chiba 2788510, Japan

[3] Univ Tokyo, Grad Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2014年 / 67卷

关键词：

Water movement; Crack; Unsaturated condition; Neutron radiography; Concrete; NEUTRON-RADIOGRAPHY;

D O I：

10.1016/j.conbuildmat.2013.11.082

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The purpose of this research is to detect the water penetration, especially around concrete cracks, under unsaturated conditions at an early time by neutron radiography. The previous known theories of water movement in concrete are verified by the experimental results, both in cracks and around cracks. The results show that water movement in a crack decelerates dramatically in minutes. They also indicate that water movement in some kinds of concrete cracks should be treated in the same way as water absorption into concrete, which described diffusion dominated inflow only after a few minutes. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：95 / 99

页数：5

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