Effects of high temperatures on the splitting tensile strength and gamma ray shielding performance of radiation shielding concrete

被引:36
作者
Luo, Lincheng [1 ,2 ,3 ]
Chen, Zhenfu [1 ,2 ,3 ]
Tao, Qiuwang [1 ,2 ,3 ]
Xie, Liping [4 ]
Jin, Dan [1 ,3 ]
Li, Zhujing [1 ,3 ]
Deng, Du [1 ,2 ,3 ]
机构
[1] Univ South China, Sch Civil Engn, Hengyang 421001, Hunan, Peoples R China
[2] Univ South China, China Nucl Ind Key Lab High Performance Concrete, Hengyang 421001, Hunan, Peoples R China
[3] Univ South China, Hunan Prov Key Lab High Performance Special Concre, Hengyang 421001, Hunan, Peoples R China
[4] China Nucl Ind 22ND Construct Co Ltd, Yichang 443101, Hubei, Peoples R China
关键词
Radiation shielding concrete; High temperature; Gamma ray shielding; Splitting tensile strength; Barite; Magnetite; HEAVYWEIGHT CONCRETE; BARITE; FIRE; PARAMETERS; AGGREGATE;
D O I
10.1016/j.conbuildmat.2022.127953
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
The residual properties of radiation shielding concrete subjected to high temperatures require reassessment, considering that it may be exposed to high temperatures during service life. In this study, the effects of high temperatures on apparent characteristic, mass loss, splitting tensile strength, ultrasonic pulse velocity and gamma ray shielding performance of the more widely used barite concrete and magnetite concrete were investigated. The results showed that the relative velocity and damage index had a good correlation with the relative splitting tensile strength of radiation shielding concrete exposed to high temperatures, which could accurately reflect the failure of radiation shielding concrete subjected to high temperatures. Meanwhile, barite concrete appeared severe spalling phenomenon at 450 celcius, and magnetite concrete had better thermal stability, which had favorable physical, mechanical and shielding properties, thus it was more suitable for concrete under high temperature.
引用
收藏
页数:11
相关论文
共 58 条
  • [1] Ahmad I, 2019, J ENG RES-KUWAIT, V7, P81
  • [2] Radiation shielding of concretes containing different aggregates
    Akkurt, I
    Basyigit, C
    Kilincarslan, S
    Mavi, B
    Akkurt, A
    [J]. CEMENT & CONCRETE COMPOSITES, 2006, 28 (02) : 153 - 157
  • [3] The shielding of γ-rays by concretes produced with barite
    Akkurt, I
    Basyigit, C
    Kilincarslan, S
    Mavi, B
    [J]. PROGRESS IN NUCLEAR ENERGY, 2005, 46 (01) : 1 - 11
  • [4] Gamma-ray shielding properties of concrete including barite at different energies
    Akkurt, I.
    Akyildirim, H.
    Mavi, B.
    Kilincarslan, S.
    Basyigit, C.
    [J]. PROGRESS IN NUCLEAR ENERGY, 2010, 52 (07) : 620 - 623
  • [5] Recycling of scale and steel chips waste as a partial replacement of sand in concrete
    Alwaeli, Mohamed
    Nadziakiewicz, Jan
    [J]. CONSTRUCTION AND BUILDING MATERIALS, 2012, 28 (01) : 157 - 163
  • [6] Effects of elevated temperatures on properties of concrete
    Arioz, Omer
    [J]. FIRE SAFETY JOURNAL, 2007, 42 (08) : 516 - 522
  • [7] Bamonte P., 2014, Infrastructure Systems for Nuclear Energy, P407, DOI DOI 10.1002/9781118536254.CH25
  • [8] Chen Y., 2012, Orthodontics-Foundation, Technology and Clinical
  • [9] Chen Z., 2021, CONCRETE, V2, P68, DOI [10.3969/j.issn.1002-3550.2021.02.017, DOI 10.3969/J.ISSN.1002-3550.2021.02.017]
  • [10] Cherdron W, 1990, ENC 90 ENSANS FORATO