硅灰在放射性废物水泥固化中的应用

Applications of Microsilica to Cement Solidification of Radwaste

硅灰是一种极细的火山灰质的高活性二氧化硅。本文主要介绍了硅灰的技术指标,对混凝土性能的影响以及与水泥的作用机理,并对水泥固化放射性废物的应用现状进行分析总结。研究表明,硅灰作为水泥固化的一种添加剂,它具有增强水泥固化体的性能、降低放射性核素的浸出以及提高核废物包容量的作用。

Microsilica is a sort of tiny pozzolana with high-active silicon dioxide. This paper mainly present the technique index, the effect to properties of concrete and the functional mechanism to cement, meanwhile ,analyzes and summarizes the application actuality that cement solidifies radwaste. The study shows that microsilica can enhance the properties of cement solidified forms ,reduces the infiltration of radionuclide and enlarge the capacity of radwaste, as a kind of additive in the course of cement solidification.