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http://dx.doi.org/10.5345/JKIBC.2019.19.2.139

Radon Reduction Performance of Adsorbent for Making Radon-Reducing Functional Board  

Kim, Ki-Hoon (Graduate School, Hanbat National University)
Pyeon, Su-Jeong (Graduate School, Hanbat National University)
Kim, Yeon-Ho (Graduate School, Hanbat National University)
Lee, Sang-Soo (Department of Architectural Engineering, Hanbat National University)
Publication Information
Journal of the Korea Institute of Building Construction / v.19, no.2, 2019 , pp. 139-147 More about this Journal
Abstract
In this study, an experiment was conducted to evaluate the properties of cement matrix using diatomite and silica gel as adsorbents of radon. The adsorption properties of diatomite of a natural adsorbent and silica gel of an artificial sorbent were examined to confirm the reduction of radon gas concentration of the removal of radon gas in the indoor environment of the human body. We conducted a performance evaluation for the study. The fluidity, air content, density, absorption, flexural failure load, thermal conductivity and radon gas concentration of the specimen using diatomite and silica gel were measured. the fluidity and the air content of the adsorbed matrix with diatomite were decreased as the diatomite replacement ratio increased. Which seems to affect the subsequent matrix by the absorption of the compounding water of diatomite. As the replacement rate of silica gel increased, the fluidity decreased and the air content increased up to constant replacement rate. It is judged that the surface of the silica gel has a critical point at which it can react with moisture.
Keywords
absorbent; diatomite; silica gel; radon gas; indoor air quality;
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