掺渣建筑材料的氡析出率限制  

The radon exhalation limitation of building material with slag

作　　者：刘福东[1] 张耀春 王亮[1] 王春红[3] 张永贵[4] 

机构地区：[1]环境保护部核与辐射安全中心,北京100082 [2]中国核电工程有限公司,北京100840 [3]中国原子能科学研究院,北京102413 [4]中国建筑材料科学研究总院,北京100024

出　　处：《中国建材科技》2013年第5期4-6,共3页China Building Materials Science & Technology

基　　金："大型先进压水堆核电站国家科技重大专项-CAP1400安全审评关键技术研究"支持

摘　　要：我国目前居民所受天然辐射照射有效剂量高于世界平均水平,这与大量使用掺渣建筑材料有密切关系。氡的析出率是反映掺渣建筑材料的更全面的信息,科学合理地确定建筑材料的氡析出率是减少居民所受内照射重要环节。本文结合我国实际城镇住房的特点,考虑辐射防护和我国法规要求,根据模型计算提出适合我国的掺渣建筑材料氡表面析出率的限制值为20Bqm-2s-1。通过已有的测量数据和初步代价利益分析,论述限制值的合理性。The China dwellers effective dose from natural radiation exposure is higher than the world average level now, which is closely relative with using a lot of building material with slags. The radon exhalation is can reflect all characters and information of building material with slags, so how to confirm radon exhalation value reasonably and scenically is a pertinent method to reduce dwellers internal exposure. Considering national dwelling characters of real city and the requirement of radiation protection and national regulation, this pater is put up forward that the limitation of radon exhalation of building material with drags is 20mBqm^-2s^-1 based onmodel calculation. The rationality of limitation value is discussed by measure date and analysis of expense-benefit.

关 键 词：氡析出率 内照射 天然辐射 照射有效剂量 掺渣建筑材料 

分 类 号：TU502[建筑科学—建筑技术科学]