防辐射混凝土高温稳定性研究进展

防辐射混凝土由于服役环境的特殊性,需长时间处于高温及高辐射之下,因此防辐射混凝土在高温下的力学性能和辐射屏蔽能力是限制其发展和应用的主要因素。本文从普通混凝土的高温性能、防辐射混凝土高温下的力学性能和辐射屏蔽能力方面对现阶段国内外防辐射混凝土研究进行了总结。结果表明,防辐射混凝土正朝着掺入不同类型的重型骨料以改善混凝土的辐射屏蔽性能、高温稳定性和低成本制备等方向发展。

Research progress on high-temperature stability of radiation shielding concrete

Due to the particularity of the service environment, radiation shielding concrete needs to be exposed to high temperature and high radiation for a long time, so the mechanical properties and radiation shielding ability of radiation shielding concrete at high temperature are the main factors that limit its development and application. This paper summarizes the research on radiation shielding concrete at home and abroad from the aspects of high temperature performance of ordinary concrete, and mechanical properties and radiation shielding ability of radiation shielding concrete at high temperature. The results show that radiation shielding concrete is developing in the direction of adding various types of heavy aggregates to improve the radiation shielding performance and high temperature stability and decrease the preparation cost of concrete.