Upcycling end-of-life bricks in high-performance one-part alkali-activated materials
One-part alkali-activated materials (AAMs) can preserve natural resources and lower embodied carbon of the built environment by accommodating various wastes, industrial by-products, and end-of-life materials in their composition. This study investigates the feasibility of using end-of-life bricks in...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Developments in the Built Environment |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666165923001138 |
| _version_ | 1797387807272992768 |
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| author | Yazeed A. Al-Noaimat Mehdi Chougan Mazen J. Al-kheetan Marcus H.N. Yio Hong S. Wong Seyed Hamidreza Ghaffar |
| author_facet | Yazeed A. Al-Noaimat Mehdi Chougan Mazen J. Al-kheetan Marcus H.N. Yio Hong S. Wong Seyed Hamidreza Ghaffar |
| author_sort | Yazeed A. Al-Noaimat |
| collection | DOAJ |
| description | One-part alkali-activated materials (AAMs) can preserve natural resources and lower embodied carbon of the built environment by accommodating various wastes, industrial by-products, and end-of-life materials in their composition. This study investigates the feasibility of using end-of-life bricks in two physical states, powder and aggregate, to partially replace fly ash precursor and natural aggregate in AAMs, respectively. The mechanical characteristics, microstructure, water absorption, freeze-thaw and fire resistance of the modified AAMs were evaluated. The effect of adding different ratios of nano graphite platelets was also investigated. Results showed that brick-based one-part AAMs can achieve mechanical properties, pore structure, water absorption and freeze-thaw resistance comparable to fly ash-based AAM while having 65% better fire resistivity. Incorporating bricks as aggregate resulted in a maximum improvement of 17% and 27% in the AAMs' compressive and flexural strength levels, respectively, and a general enhancement in the freeze-thaw resistance with showing no reduction in compressive strength after exposure to elevated temperature. Incorporating 0.1 wt% nano-graphite further enhanced flexural strength by 30%, decreased water absorption by 18% and improved freeze-thaw resistance compared to the mix without nano-graphite. Moreover, adding up to 0.5% nano-graphite enhanced the fire resistivity of the composite, allowing it to exhibit 19% better strength performance than before exposure. |
| first_indexed | 2024-03-08T22:31:28Z |
| format | Article |
| id | doaj.art-84a8bad3dc184d6db92f9aa651cc19aa |
| institution | Directory Open Access Journal |
| issn | 2666-1659 |
| language | English |
| last_indexed | 2024-03-08T22:31:28Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Developments in the Built Environment |
| spelling | doaj.art-84a8bad3dc184d6db92f9aa651cc19aa2023-12-18T04:24:59ZengElsevierDevelopments in the Built Environment2666-16592023-12-0116100231Upcycling end-of-life bricks in high-performance one-part alkali-activated materialsYazeed A. Al-Noaimat0Mehdi Chougan1Mazen J. Al-kheetan2Marcus H.N. Yio3Hong S. Wong4Seyed Hamidreza Ghaffar5Department of Civil and Environmental Engineering, Brunel University, London, Uxbridge, Middlesex, UB8 3PH, United KingdomDepartment of Civil and Environmental Engineering, Brunel University, London, Uxbridge, Middlesex, UB8 3PH, United KingdomDepartment of Civil and Environmental Engineering, College of Engineering, Mutah University Mutah, Karak, 61710, P.O. BOX 7, JordanCentre for Infrastructure Materials, Department of Civil and Environmental Engineering, Imperial College London, London, SW7 2AZ, United KingdomCentre for Infrastructure Materials, Department of Civil and Environmental Engineering, Imperial College London, London, SW7 2AZ, United KingdomDepartment of Civil and Environmental Engineering, Brunel University, London, Uxbridge, Middlesex, UB8 3PH, United Kingdom; Applied Science Research Center, Applied Science Private University, Jordan; Corresponding author. Department of Civil and Environmental Engineering, Brunel University, London, Uxbridge, Middlesex, UB8 3PH, United Kingdom.One-part alkali-activated materials (AAMs) can preserve natural resources and lower embodied carbon of the built environment by accommodating various wastes, industrial by-products, and end-of-life materials in their composition. This study investigates the feasibility of using end-of-life bricks in two physical states, powder and aggregate, to partially replace fly ash precursor and natural aggregate in AAMs, respectively. The mechanical characteristics, microstructure, water absorption, freeze-thaw and fire resistance of the modified AAMs were evaluated. The effect of adding different ratios of nano graphite platelets was also investigated. Results showed that brick-based one-part AAMs can achieve mechanical properties, pore structure, water absorption and freeze-thaw resistance comparable to fly ash-based AAM while having 65% better fire resistivity. Incorporating bricks as aggregate resulted in a maximum improvement of 17% and 27% in the AAMs' compressive and flexural strength levels, respectively, and a general enhancement in the freeze-thaw resistance with showing no reduction in compressive strength after exposure to elevated temperature. Incorporating 0.1 wt% nano-graphite further enhanced flexural strength by 30%, decreased water absorption by 18% and improved freeze-thaw resistance compared to the mix without nano-graphite. Moreover, adding up to 0.5% nano-graphite enhanced the fire resistivity of the composite, allowing it to exhibit 19% better strength performance than before exposure.http://www.sciencedirect.com/science/article/pii/S2666165923001138Brick aggregateBrick powderNano-graphite plateletsOne-part alkali-activated materials |
| spellingShingle | Yazeed A. Al-Noaimat Mehdi Chougan Mazen J. Al-kheetan Marcus H.N. Yio Hong S. Wong Seyed Hamidreza Ghaffar Upcycling end-of-life bricks in high-performance one-part alkali-activated materials Developments in the Built Environment Brick aggregate Brick powder Nano-graphite platelets One-part alkali-activated materials |
| title | Upcycling end-of-life bricks in high-performance one-part alkali-activated materials |
| title_full | Upcycling end-of-life bricks in high-performance one-part alkali-activated materials |
| title_fullStr | Upcycling end-of-life bricks in high-performance one-part alkali-activated materials |
| title_full_unstemmed | Upcycling end-of-life bricks in high-performance one-part alkali-activated materials |
| title_short | Upcycling end-of-life bricks in high-performance one-part alkali-activated materials |
| title_sort | upcycling end of life bricks in high performance one part alkali activated materials |
| topic | Brick aggregate Brick powder Nano-graphite platelets One-part alkali-activated materials |
| url | http://www.sciencedirect.com/science/article/pii/S2666165923001138 |
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