Progress of Cement-based Neutron Shielding Materials in Nuclear Protecting
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摘要: 不同能量的中子有不同的工程屏蔽方法,水泥基中子屏蔽材料具有重要应用价值。本文首先从中子防护的角度简要介绍了中子屏蔽原理,其次从快中子减速、慢中子吸收两个方面总结概括了水泥基中子屏蔽材料的研究现状,分析了水泥基中子屏蔽材料存在的不足:功能单一、耐久性、施工性及环境友好等问题,并指出了下一步研究方向:提高核防护水泥混凝土综合防护性能,设计新材料结构,提高施工性能,建立耐久性评价体系。Abstract: Neutrons in different energies have different shielding methods,the application of cement-based materials for neutron shielding is very important.In this paper,base of the neutron shielding,the shielding theory of neutron is introduced,the recent developments of cement-based materials for neutron shielding are reviewed,several basic problems in the research are analyzed,a developing trend of the neutron shielding cement-based materials are brought forward as:increasing the shielding properties of concrete,designing the new materials and structures,improving construction performances,establishing evaluation systems for durability.
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Key words:
- Nuclear protective materials /
- Neutron radiation /
- Shielding /
- Cement-based materials /
- Progress
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