Study on the reuse of high-silica by-product from Lionas Metals Plant to partially replace cement in concrete production
This study investigates the reuse of high-silica by-product (HSB) from the Lionas Metals Plant as a partial replacement for cement in concrete production. Four mixtures with 0, 10, 20, and 30% cement replacement by HSB were designed using the absolute volume method at a fixed water-to-binder ratio...
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| Format: | Article |
| Language: | English |
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Vietnam Ministry of Science and Technology
2025-06-01
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| Series: | Vietnam Journal of Science, Technology and Engineering |
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| Online Access: | https://vietnamscience.vjst.vn/index.php/vjste/article/view/1288 |
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| _version_ | 1849334017810235392 |
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| author | Dang-Nguyen Nguyen |
| author_facet | Dang-Nguyen Nguyen |
| author_sort | Dang-Nguyen Nguyen |
| collection | DOAJ |
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This study investigates the reuse of high-silica by-product (HSB) from the Lionas Metals Plant as a partial replacement for cement in concrete production. Four mixtures with 0, 10, 20, and 30% cement replacement by HSB were designed using the absolute volume method at a fixed water-to-binder ratio of 0.45. The study evaluated the effects of HSB on concrete properties, including fresh and dry unit weights (UW), water absorption (WA), compressive strength (CS), ultrasonic pulse velocity (UPV), thermal conductivity (TC), and rapid chloride ion penetration (RCPT). Results showed that increasing the HSB content led to a reduction in both fresh and dry UWs. WA decreased with longer curing times and higher HSB content, while resistance to chloride ion penetration improved significantly. The HSB content resulted in higher CS and UPV while reducing WA, TC, and RCPT. Higher HSB content resulted in greater CS and durability, with the 30% HSB mixture demonstrating outstanding 28-day performance: a maximum CS of 65.04 MPa, the highest UPV of 4902 m/s, the lowest WA of 1.14%, a reduced TC of 1.96 W/(m×K), and an extremely low RCPT value of 179 Coulombs. Microstructural analysis supported these observations. The findings demonstrate HSB’s effectiveness in improving concrete performance and confirm its viability for sustainable concrete production.
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| format | Article |
| id | doaj-art-9eebae47c2c6446698f2ce62c689a639 |
| institution | Kabale University |
| issn | 2525-2461 2615-9937 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Vietnam Ministry of Science and Technology |
| record_format | Article |
| series | Vietnam Journal of Science, Technology and Engineering |
| spelling | doaj-art-9eebae47c2c6446698f2ce62c689a6392025-08-20T03:45:40ZengVietnam Ministry of Science and TechnologyVietnam Journal of Science, Technology and Engineering2525-24612615-99372025-06-0110.31276/VJSTE.2025.0029Study on the reuse of high-silica by-product from Lionas Metals Plant to partially replace cement in concrete production Dang-Nguyen Nguyen This study investigates the reuse of high-silica by-product (HSB) from the Lionas Metals Plant as a partial replacement for cement in concrete production. Four mixtures with 0, 10, 20, and 30% cement replacement by HSB were designed using the absolute volume method at a fixed water-to-binder ratio of 0.45. The study evaluated the effects of HSB on concrete properties, including fresh and dry unit weights (UW), water absorption (WA), compressive strength (CS), ultrasonic pulse velocity (UPV), thermal conductivity (TC), and rapid chloride ion penetration (RCPT). Results showed that increasing the HSB content led to a reduction in both fresh and dry UWs. WA decreased with longer curing times and higher HSB content, while resistance to chloride ion penetration improved significantly. The HSB content resulted in higher CS and UPV while reducing WA, TC, and RCPT. Higher HSB content resulted in greater CS and durability, with the 30% HSB mixture demonstrating outstanding 28-day performance: a maximum CS of 65.04 MPa, the highest UPV of 4902 m/s, the lowest WA of 1.14%, a reduced TC of 1.96 W/(m×K), and an extremely low RCPT value of 179 Coulombs. Microstructural analysis supported these observations. The findings demonstrate HSB’s effectiveness in improving concrete performance and confirm its viability for sustainable concrete production. https://vietnamscience.vjst.vn/index.php/vjste/article/view/1288compressive strengthhigh-silica by-productrapid chloride ion penetrationultrasonic pulse velocitywater absorption |
| spellingShingle | Dang-Nguyen Nguyen Study on the reuse of high-silica by-product from Lionas Metals Plant to partially replace cement in concrete production Vietnam Journal of Science, Technology and Engineering compressive strength high-silica by-product rapid chloride ion penetration ultrasonic pulse velocity water absorption |
| title | Study on the reuse of high-silica by-product from Lionas Metals Plant to partially replace cement in concrete production |
| title_full | Study on the reuse of high-silica by-product from Lionas Metals Plant to partially replace cement in concrete production |
| title_fullStr | Study on the reuse of high-silica by-product from Lionas Metals Plant to partially replace cement in concrete production |
| title_full_unstemmed | Study on the reuse of high-silica by-product from Lionas Metals Plant to partially replace cement in concrete production |
| title_short | Study on the reuse of high-silica by-product from Lionas Metals Plant to partially replace cement in concrete production |
| title_sort | study on the reuse of high silica by product from lionas metals plant to partially replace cement in concrete production |
| topic | compressive strength high-silica by-product rapid chloride ion penetration ultrasonic pulse velocity water absorption |
| url | https://vietnamscience.vjst.vn/index.php/vjste/article/view/1288 |
| work_keys_str_mv | AT dangnguyennguyen studyonthereuseofhighsilicabyproductfromlionasmetalsplanttopartiallyreplacecementinconcreteproduction |