密闭环境中温度和湿度对地砖氡析出率影响

目的探讨密闭环境中温度和相对湿度对地砖氡析出率的影响规律.方法以市售普通釉面地砖为研究对象,在0.25 m^3模拟舱内,用Model 10027型连续测氡仪检测不同温度和相对湿度下的氡浓度,计算氡析出率.结果在测定范围内,氡析出率与温度符合三次函数关系ER=-0.0293T3＋2.5543T2-72.82T＋687.27（R2=0.9669）;氡析出率与相对湿度符合三次函数关系ER=0.0001RH3-0.0354RH2＋2.3391RH-25.044（R2=0.9889）.结论温度、相对湿度是影响地砖氡析出率的重要环境因素.

Effects of temperature and relative humidity on radon exhalation rate of glazed tile in hermetic environment

Objective To explore the effects of temperature and relative humidity on Rdon exhalation rate of glazed tile in hermetic environment.Methods Ordinary glazed tile was used as experimental object to detect Radon concentration with Model 1027 continuous Radon monitor in a 0.25m~3 hermetic simulation chamber at amerent temperatures and humidities,then Radon exhalation rates were calculated.Results In reasonable range,the correlations between Radon exhalation rates and temperature,as well as relative humidity could be expressed as ER=-0.0293T~3+2.5543T~2-72.82T+687.27(R~2=0.9669)and ER=0.0001RH~3-0.0354RH~2+2.3391RH-25.044(R~2=0.9889),respectively.Conclusion Environmental temperature and relative humidity have great effects on Radon exhalation rate of glazed tile.