X-ray attenuation technique for the analysis of moisture flow in porous building materials

被引：0
|
作者：
Roels, S [1 ]
van Besien, T [1 ]
Carmeliet, J [1 ]
Wevers, M [1 ]
机构：
[1] Katholieke Univ Leuven, Dept Civil Engn, Louvain, Belgium
来源：
RESEARCH IN BUILDING PHYSICS | 2003年
关键词：
D O I：
暂无
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Microfocus X-ray radiography is presented as an accurate experimental method for the analysis of moisture transport in porous building materials. The technique has evolved from the better-known medical technique. Compared to the commonly used gamma-ray and NMR-technique it has the advantage that it allows a fast and accurate determination of the two-dimensional transient moisture content profiles. A calibration procedure is presented to determine the optimal sample thickness for the visualisation of moisture in porous building materials. To illustrate the capabilities of the X-ray projection method, examples of water imbibition in homogeneous, heterogeneous and cracked building materials are included.
引用
收藏
页码：151 / 157
页数：7
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