李杨子,陈振富,刘怡志.蛇纹石-磁铁矿混掺混凝土的高温防辐射性能探究[J].南华大学学报(自然科学版),2024,(4):50~55, 64.[LI Yangzi,CHEN Zhenfu,LIU Yizhi.High Temperature Radiation Resistance of Serpentine-magnetite Mixed Concrete[J].Journal of University of South China(Science and Technology),2024,(4):50~55, 64.]
蛇纹石-磁铁矿混掺混凝土的高温防辐射性能探究
High Temperature Radiation Resistance of Serpentine-magnetite Mixed Concrete
投稿时间:2024-05-03  
DOI:
中文关键词:  蛇纹石混凝土  磁铁矿混凝土  防辐射性能  高温
英文关键词:serpentine concrete  magnetite concrete  radiation resistance  hyperthermia
基金项目:国家自然科学基金项目(51678286)
作者单位E-mail
李杨子 南华大学 土木工程学院,湖南 衡阳 421001
高性能特种混凝土湖南省重点实验室,湖南 衡阳 421001 
1023133541@qq.com,271812177@qq.com 
陈振富 南华大学 土木工程学院,湖南 衡阳 421001
高性能特种混凝土湖南省重点实验室,湖南 衡阳 421001 
 
刘怡志 南华大学 规划基建处,湖南 衡阳 421001 1023133541@qq.com,271812177@qq.com 
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中文摘要:
      本文使用蛇纹石与磁铁矿作为骨料,制备了五种不同配合比的蛇纹石-磁铁矿混掺混凝土,测试了不同配合比的混掺混凝土在高温加热后的γ射线屏蔽性能。结果表明:随着蛇纹石占比升高,800 ℃高温加热后残余线性衰减系数从82.92%降低至79.32%,蛇纹石骨料占总骨料质量的比例增高会使得γ射线屏蔽性能劣化速度更快。纯磁铁矿混凝土常温和高温的γ射线屏蔽性能均要优于纯蛇纹石混凝土与蛇纹石-磁铁矿混掺混凝土。
英文摘要:
      In this paper, serpentine and magnetite were used as aggregates to prepare five kinds of serpentine-magnetite mixed concrete with different proportions. The γ-ray shielding properties of the mixed concrete with different proportions were tested after heating at high temperature. The results show that with the increase of serpentine proportion, the residual linear attenuation coefficient decreases from 82.92% to 79.32% after heating at 800 ℃, and the proportion of serpentine aggregate to total aggregate mass increases, and the deterioration rate of γ-ray shielding performance is faster. The γ-ray shielding performance of pure magnetite concrete is better than that of pure serpentine concrete and serpentine-magnetite mixed concrete at room temperature and high temperature.
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