Effect of elevated temperature to radiation shielding of ultra-high performance concrete with silica sand or magnetite

被引：46
|
作者：
Rashid, Raizal S. M. [1 ]
Salem, S. Mohammed [2 ]
Azreen, N. M. [3 ]
Voo, Y. L. [4 ]
Haniza, M. [5 ]
Shukri, A. A. [2 ]
Yahya, Mohd-Syukri [6 ]
机构：
[1] Univ Putra Malaysia, Fac Engn, Housing Res Ctr, Dept Civil Engn, Serdang 43400, Selangor, Malaysia
[2] Univ Putra Malaysia, Fac Engn, Dept Civil Engn, Serdang 43400, Selangor, Malaysia
[3] Agensi Nuklear Malaysia, Mat & Struct Integr Grp, Kajang 43600, Selangor, Malaysia
[4] DURA Technol Sdn Bhd, Jalan Chepor 11-8,Pusat Seramik Fasa 2, Chemor 31200, Perak, Malaysia
[5] Mineral Res Ctr, Minerals & Geosci Dept Malaysia, Jalan Sultan Azlan Shah, Ipoh 31400, Perak, Malaysia
[6] Univ Tenaga Nasl UNITEN, Coll Engn, Kajang 43009, Selangor, Malaysia
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2020年 / 262卷
关键词：
Elevated temperature; Magnetite; Radiation; Radiation shielding; Silica sand; Ultra-high performance concrete; REACTIVE POWDER CONCRETE; MECHANICAL-PROPERTIES; GAMMA; MICROSTRUCTURE; AGGREGATE; NEUTRON;
D O I：
10.1016/j.conbuildmat.2020.120567
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The high density and strength of ultra-high performance concrete (UHPC) makes it suitable for radiation shielding, however, the deterioration of radiation shielding properties due to exposure to elevated temperature is a major concern. Hence this paper presents a study on the radiation shielding properties of UHPC after exposure to elevated temperature. It was found that the half-value layer and tenth value layer of both types of UHPC tested had increased by 76-82%, which was attributed to the excessive spalling and cracking that occurred. Magnetite was found to be slightly better than silica sand for radiation shielding. (C) 2020 Elsevier Ltd. All rights reserved.
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页数：7
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