期刊论文

Radiation shielding efficiency and optimization of concrete incorporated with bismuth oxide

中文

核技术

0253-3219

2017

40

6

21-26

10.11889/j.0253-3219.2017.hjs.40.060201

国家自然科学基金(No.51404141、No.51074093、No.U1401231)、湖南省教育厅科技计划项目(No.15C1170)资助 第一作者：张晓文，男，1967 年出生，2010 年于湖南大学获博士学位，主要从事放射性三废处理与处置研究 收稿日期：2016-11-14，修回日期：2017-01-20 Supported by National Natural Science Foundation of China (No.51404141, No.51074093, No.U1401231), Hunan Provincial Department of Education Science and Technology Program (No.15C1170) First author: ZHANG Xiaowen, male, born in 1967, graduated from Hunan University with a doctoral degree in 2010, mainly engaged in the research of treatment and disposal of radioactive wastes Received date: 2016-11-14, accepted date: 2017-01-20

本校为第一机构

将氧化铋以粉末形式添加到普通混凝土中,制备出绿色无污染且具有良好的?射线屏蔽性能的掺杂氧化铋的混凝土。相较于普通混凝土,氧化铋-混凝土的屏蔽性能及力学性能均得到改善。对比屏蔽性能实验结果及MCNP5（Monte Carlo N-Particle 5）模拟结果,二者相符很好,可以用MCNP5进行后期配合比设计优化。运用田口方法对水泥量、水胶比、氧化铋比例及砂率等进行优化设计。结果表明,对氧化铋-混凝土屏蔽能力影响最大的参数是氧化铋的加入量,其次为水泥量,水胶比及砂率的影响可忽略。

Background: To enhance the shielding properties of concrete mixtures, there is a tendency toward using various additives while most of these additives being used either pose hygiene hazards or require special handling processes. Purpose: To ensure the concretes being environmentally friendly and providing sufficient gamma ray radiation shielding efficiency, Bi2O3-loaded concrete mixtures are researched and optimized. Methods: Both experimental and theoretical methods were used to calculate the linear attenuation coefficient before using the Tag...