Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding
Four Ultra High-Performance Concrete (UHPC) modified mixes were studied with 0%, 5%, 10%, 15%, and 20% of boron carbide as aggregates replacement for silica sand denoted as UREF, UBC5, UBC10, UBC15, and UBC20, respectively. Overall, as the boron carbide content increases, workability decreases while...
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| Format: | Article |
| Language: | English |
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Elsevier
2025
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| Online Access: | http://psasir.upm.edu.my/id/eprint/117230/ http://psasir.upm.edu.my/id/eprint/117230/1/117230.pdf |
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| author | Ramli, Nurhayati Muhammad Rashid, Raizal Saifulnaz Mohd Nasir, Noor Azline Voo, Yen Lei Masenwat, Noor Azreen Abdul Karim, Julia |
| author_facet | Ramli, Nurhayati Muhammad Rashid, Raizal Saifulnaz Mohd Nasir, Noor Azline Voo, Yen Lei Masenwat, Noor Azreen Abdul Karim, Julia |
| author_sort | Ramli, Nurhayati |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Four Ultra High-Performance Concrete (UHPC) modified mixes were studied with 0%, 5%, 10%, 15%, and 20% of boron carbide as aggregates replacement for silica sand denoted as UREF, UBC5, UBC10, UBC15, and UBC20, respectively. Overall, as the boron carbide content increases, workability decreases while density improves. The UBC20 mix showed a 14.77% reduction in compressive strength compared to the UREF. Nonetheless, the compressive strength still exceeded 140 MPa at 28 days. Boron carbide demonstrated better radiation shielding where the shielding capability for the UBC20 mix shielded gamma and neutron was 16.89% with 60Co source, 5.23% with 137Cs source, as well as 37.48% with neutron source, respectively, better than the UREF specimen. These findings demonstrate that increasing boron carbide content progressively enhances the shielding properties of the concrete. However, caution is advised with higher boron carbide inclusion, as it may significantly reduce strength. |
| first_indexed | 2025-11-15T14:32:38Z |
| format | Article |
| id | upm-117230 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:32:38Z |
| publishDate | 2025 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1172302025-05-07T07:42:50Z http://psasir.upm.edu.my/id/eprint/117230/ Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding Ramli, Nurhayati Muhammad Rashid, Raizal Saifulnaz Mohd Nasir, Noor Azline Voo, Yen Lei Masenwat, Noor Azreen Abdul Karim, Julia Four Ultra High-Performance Concrete (UHPC) modified mixes were studied with 0%, 5%, 10%, 15%, and 20% of boron carbide as aggregates replacement for silica sand denoted as UREF, UBC5, UBC10, UBC15, and UBC20, respectively. Overall, as the boron carbide content increases, workability decreases while density improves. The UBC20 mix showed a 14.77% reduction in compressive strength compared to the UREF. Nonetheless, the compressive strength still exceeded 140 MPa at 28 days. Boron carbide demonstrated better radiation shielding where the shielding capability for the UBC20 mix shielded gamma and neutron was 16.89% with 60Co source, 5.23% with 137Cs source, as well as 37.48% with neutron source, respectively, better than the UREF specimen. These findings demonstrate that increasing boron carbide content progressively enhances the shielding properties of the concrete. However, caution is advised with higher boron carbide inclusion, as it may significantly reduce strength. Elsevier 2025-03-14 Article PeerReviewed text en cc_by_nc_nd_4 http://psasir.upm.edu.my/id/eprint/117230/1/117230.pdf Ramli, Nurhayati and Muhammad Rashid, Raizal Saifulnaz and Mohd Nasir, Noor Azline and Voo, Yen Lei and Masenwat, Noor Azreen and Abdul Karim, Julia (2025) Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding. Construction and Building Materials, 467 (140421). art. no. 140421. pp. 1-8. ISSN 0950-0618 https://linkinghub.elsevier.com/retrieve/pii/S0950061825005690 10.1016/j.conbuildmat.2025.140421 |
| spellingShingle | Ramli, Nurhayati Muhammad Rashid, Raizal Saifulnaz Mohd Nasir, Noor Azline Voo, Yen Lei Masenwat, Noor Azreen Abdul Karim, Julia Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding |
| title | Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding |
| title_full | Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding |
| title_fullStr | Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding |
| title_full_unstemmed | Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding |
| title_short | Modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding |
| title_sort | modified ultra high-performance concrete with boron carbide for neutron and gamma radiation shielding |
| url | http://psasir.upm.edu.my/id/eprint/117230/ http://psasir.upm.edu.my/id/eprint/117230/ http://psasir.upm.edu.my/id/eprint/117230/ http://psasir.upm.edu.my/id/eprint/117230/1/117230.pdf |