Renken K J, Rosenberg T
Mechanical Engineering Department, University of Wisconsin-Milwaukee 53201-0784, USA.
Health Phys. 1995 Jun;68(6):800-8. doi: 10.1097/00004032-199506000-00006.
Experiments were conducted to measure the transportability of radon gas through common concrete samples which were characterized by their mix proportions, dimensions, porosity, air permeability, and radon gas diffusion coefficient. Several innovative test systems and methods were designed, fabricated, and calibrated to accurately measure these radon gas transport characteristics for concrete and to overcome many of the shortcomings of previously published experimental works. From the experimental results, it was found that diffusion is the dominant transport mechanism by which radon gas moves through an intact concrete slab. It was also shown that indoor radon entry rates can be greatly affected by the type of concrete mix employed. The results of this study can be utilized to improve the present technology of radon-resistant construction techniques for new residential construction.
进行了实验，以测量氡气通过普通混凝土样品的可迁移性，这些混凝土样品通过其混合比例、尺寸、孔隙率、透气性和氡气扩散系数来表征。设计、制造并校准了几种创新的测试系统和方法，以准确测量混凝土的这些氡气传输特性，并克服先前发表的实验工作中的许多缺点。从实验结果发现，扩散是氡气穿过完整混凝土板的主要传输机制。研究还表明，室内氡气进入率会受到所采用混凝土混合物类型的极大影响。本研究结果可用于改进新住宅建筑的现行防氡施工技术。
