期刊论文

Experimental Study on the Difference of Radon Exhalation Between Joint and Non-joint of Ceramic Tile Floor

中文

南华大学学报(自然科学版)

1673-0062

2022

36

3

1-7

10.19431/j.cnki.1673-0062.2022.03.001

国家自然科学基金项目(11575080)。

本校为第一机构

为了探究缝隙的存在对建筑结构表面氡析出的影响，采用局部静态法，以机房、客厅、实验室贴瓷砖的地面为对象，测量了瓷砖与瓷砖接缝处的一字缝和十字缝以及非接缝处即瓷砖表面的氡析出率。结果表明：1)接缝处的集氡罩内平衡氡浓度远高于瓷砖表面；2)不同瓷砖表面的氡析出率不同，客厅、机房、实验室分别是0.327 mBq/（m~2·s）、0.413 mBq/（m~2·s）、0.072 mBq/（m~2·s）;3)一字缝、十字缝及瓷砖表面的氡析出率相差很大，在机房、客厅、实验室三处地面，一字缝表面氡析出率分别是瓷砖表面的3.19倍，2.43倍，2.25倍，十字缝表面的氡析出率分别是瓷砖表面的7.95倍、11.36倍、6.25倍。

To explore the influence of the existence of gaps on radon exhalation on the surface of building structures,the radon exhalation rate of single and cross joints and nonjoints of ceramic tile surface was measured by using local static method on the ground covered with ceramic tile in computer room,living room and laboratory.The results show that:(1)The equilibrium concentration of radon in the radon collecting enclosure at the joint is much higher than that on the ceramic tile surface;(2)The radon exhalation rate of different ceramic tile surfac...