工艺参数对页岩砖表面氡析出率的影响  

The influence of technological parameters to the radon exhalation rate from shale brick surface

作　　者：冀东[1] 周剑良[1] 刘福东[2] 陈凌[2] 

机构地区：[1]南华大学核科学与核技术学院,湖南衡阳421001 [2]中国原子能科学研究院,北京102413

出　　处：《中国建材科技》2008年第6期54-57,共4页China Building Materials Science & Technology

摘　　要：采用活性炭盒法吸附页岩样品砖(在不同工艺参数条件下制备)表面析出的氡气,运用高纯锗探测器测量氡子体214Pb特征峰射线的计数,得出页岩样品砖表面氡析出率。通过比较,分析出不同工艺参数(煤矸石的含量、负压、焙烧温度)时页岩砖表面氡析出率的影响。Adopting the method of active carbon adsorbing radon gas which is diffuse from the surface of the shale brick （trough change the technological parameter to produce sample）. Then using the HPGe detector to take count of the rays which are daughters of radon -214Pb,and calculate the radon exhalation rate of the shale brick. By comparing, analysis the influence of different technological parameters （mass fraction of coal gangue,negative pressure,roasting temperature） to the radon exhalation rate of shale brick surface.

关 键 词：砖 工艺参数 氧析出率 

分 类 号：TU502[建筑科学—建筑技术科学] TU522.19