用于放射性废物回填处理的低强轻集料混凝土研究及应用  

Research and application of low strength lightweight aggregate concrete for radwaste backfill disposal

作　　者：赵维霞[1] 马春林[1] 杨海勇[1] 许婵娟[1] 陈旻[1] 

机构地区：[1]西北核技术研究所,陕西西安710024

出　　处：《混凝土》2010年第12期65-67,共3页Concrete

摘　　要：通过对外加剂及掺和料的种类和掺量的试验设计,确定轻集料回填材料配合比;在对混凝土试样的物理力学性能测试分析的基础上,开展材料抗渗性能和浇筑工艺研究。研究结果表明:轻集料混凝土作为工程屏障材料,采用分层浇筑工艺可解决材料离析泌水问题;其抗渗性能优于同强度等级的普通混凝土,综合性能稳定,可较好地应用于放射性废物回填处理工程。Mix proportions of lightweight aggregate concrete determined by additives and mineral admixture test design.On the base of test analyse about its physical and mechanical properties,developing material study of impermeability and cast technics.The results show that as one of the engineering backfill material can solve segregation and bleeding using layered casting technics;its impermeability is higher than that normal concrete with the same strength grade;its have excellent comprehensive performance.So LWAC can apply to radwaste backfill disposal engineering.

关 键 词：轻集料混凝土 回填 配合比 抗渗性能 工艺 

分 类 号：TU528.041[建筑科学—建筑技术科学]