摘要
通过一定程序的高温煅烧将Ba含量高的污泥制备成防辐射集料,通过分析集料性能影响因素、重金属浸出特性优选出溶出率小、强度高的集料。利用X射线衍射(XRD)、扫描电镜(SEM)等手段分析了Ba固化后在集料中的存在形式,进行功能集料、玄武岩和重晶石的线性衰减系数测试。结果表明,功能集料的射线屏蔽性能与重晶石相当,较玄武岩集料有很大的提高。
The high barium of sludge has been made into aggregate with low dissolution rate,high strength by high temperature calcinations;the form of existence of element barium after its melted inside the aggregate has been analyzed by using XRD and SEM techniques;the linear attenuation coefficients has been measured among the functional aggregates,basalt,and barite.The results show that the radiation shielding capacity of functional aggregate has been improved substantially compared with that of the basalt,but is equivalent to that of barite.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2011年第2期35-38,共4页
Nuclear Power Engineering
基金
国家"十二五"科技支撑计划课题资助(2011BAJ04B05-02)
关键词
钡
污泥
防辐射
集料
Barium
Sludge
Radiation shielding
AggregateAbstract：The high barium of sludge has been made into aggregate with low dissolution rate
high strength by high temperature calcinations
the form of existence of element barium after its melted inside the aggregate has been analyzed by using XRD and SEM techniques
the linear attenuation coefficients has been measured among the functional aggregates
basalt
and barite.The results show that the radiation shieldingKey words：Barium
Sludge
Radiation shielding
Aggregate capacity of functional aggregate has been improved substantially compared with that of the basalt
but is equivalent to that of barite.
