Characterisation of the gas transport properties of porous materials by determining the radon diffusion coefficient

被引：11
|
作者：
Klink, T [1 ]
Gaber, K
Schlattner, E
Setzer, MJ
机构：
[1] Leipzig Univ Appl Sci, Dept Civil Engn, Leipzig, Germany
[2] Univ Essen Gesamthsch, Dept Civil Engn, D-4300 Essen 1, Germany
来源：
MATERIALS AND STRUCTURES | 1999年 / 32卷 / 224期
关键词：
Radon; Portland Cement; Silica Fume; Radon Concentration; Concrete Slab;
D O I：
10.1007/BF02905071
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
A method for the determination of the diffusion coefficient of materials by using the radioactive gas radon is presented. This gas is inert and extremely low concentrations can be detected because of the radioactive decay. The method was applied to mortars and concretes in order to optimise their composition with respect to a low radon diffusion rate. These optimised materials are to be used for concrete slabs in buildings. Compared to regular concrete, a reduction of the radon diffusion rate by more than 90% could be achieved.
引用
收藏
页码：749 / 754
页数：6
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