EFFECT OF COLEMANITE AND PVA FIBRE IN ULTRA HIGH PERFORMANCE CONCRETE (UHPC) FOR RADIATION SHIELD

Authors

  • Muhd Afiq Hizami Abdullah Universiti Putra Malaysia, Universiti Malaysia Perlis
  • R. S. M. Rashid
  • Y. L. Voo DURA Technologies Sdn. Bhd
  • N. M. Azreen Agensi Nuklear Malaysia
  • H. Ithnin Agensi Nuklear Malaysia
  • M. I. Idris Universiti Kebangsaan Malaysia

Abstract


Nuclear energy provides cleaner energy and detail imaging but due to its highly penetrative nature, shielding is required for safe handling. Concrete has been widely used and studied as shielding material but there is dearth on utilizing ultra-high-performance concrete (UHPC) especially on neutron radiation. This research aimed to investigate the effect of incorporating colemanite and polyvinyl alcohol (PVA) fibre in UHPC on its mechanical strength and radiation shielding. Compressive strength results show sand UHPdC with the highest value at 131 MPa. Magnetite and barite UHPdC recorded compressive strength of 118.7 and 116 MPa respectively. In terms of flexural and splitting tensile strength, sand UHPdC also recorded the highest value at 20.0 and 17.6 MPa respectively. However, the highest value of gamma radiation shielding is recorded by magnetite UHPdC at 0.1972 and 0.139 cm-1 based on exposure to Cs-137 and Co-60 respectively while sand UHPdC recorded the lowest value. This is also shown in neutron shielding value as magnetite recorded the highest value at 0.0307 cm-1. Overall, presence of colemanite increase neutron shielding coefficient of UHPC but both colemanite and PVA fibre caused reduction in mechanical strength and gamma ray shielding of the concrete.

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Published

2024-06-30

How to Cite

Abdullah, M. A. H. ., R. S. M. Rashid, Y. L. Voo, N. M. Azreen, H. Ithnin, & M. I. Idris. (2024). EFFECT OF COLEMANITE AND PVA FIBRE IN ULTRA HIGH PERFORMANCE CONCRETE (UHPC) FOR RADIATION SHIELD. Journal of Engineering and Technology (JET), 15(1). Retrieved from https://jet.utem.edu.my/jet/article/view/6416

Issue

Vol. 15 No. 1 (2024): JOURNAL OF ENGINEERING AND TECHNOLOGY

Section

Articles

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