基于高钡污泥的防辐射功能集料制备及其性能

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基金项目:

国家“十二五”科技支撑计划课题资助(2011BAJ04B05-02)

Preparation and Performance of Radiation Shielding Functional Aggregate Based on High Barium of Sludge

Key Laboratory of Silicate Materials Science and Engineering of Ministry of Education, Wuhan University of Technology, Wuhan, 430070, China

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。
- 钡 /
- 污泥 /
- 防辐射 /
- 集料
Abstract: 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.
- Barium /
- Sludge /
- Radiation shielding /
- Aggregate