Publication: Effect of elevated temperature to radiation shielding of ultra-high performance concrete with silica sand or magnetite
Date
2020
Authors
Rashid R.S.M.
Salem S.M.
Azreen N.M.
Voo Y.L.
Haniza M.
Shukri A.A.
Yahya M.-S.
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier Ltd
Abstract
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. � 2020 Elsevier Ltd
Description
Deterioration; Magnetite; Silica; Silica sand; Ultra-high performance concrete; Elevated temperature; Shielding properties; Ultra high performance concretes (UHPC); Radiation shielding