Investigating lightweight recycled brick aggregate concrete incorporating EPS beads: Application to masonry units
Construction and demolition (C&D) waste, including burnt clay bricks and concrete, combined with non-degradable industrial waste such as expanded polystyrene (EPS), presents a significant global disposal challenge. Recycling C&D waste into concrete aggregates offers a sustainable solution, w...
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Elsevier
2025-03-01
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| Series: | Results in Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590123025001070 |
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| author | Samina Hameed Syed Asad Ali Gillani Muhammad Tahir Rashid Hameed Safeer Abbas Moncef L. Nehdi Muhammad Ahmad |
| author_facet | Samina Hameed Syed Asad Ali Gillani Muhammad Tahir Rashid Hameed Safeer Abbas Moncef L. Nehdi Muhammad Ahmad |
| author_sort | Samina Hameed |
| collection | DOAJ |
| description | Construction and demolition (C&D) waste, including burnt clay bricks and concrete, combined with non-degradable industrial waste such as expanded polystyrene (EPS), presents a significant global disposal challenge. Recycling C&D waste into concrete aggregates offers a sustainable solution, while incorporating EPS in lightweight concrete production supports eco-friendly construction. This study focuses on developing lightweight recycled brick aggregate concrete (LRBAC) using recycled brick aggregate (RBA) and EPS beads, specifically designed for partition walls in seismic structures, where reduced weight enhances structural performance. To minimize the carbon footprint, cement was partially replaced with fly ash at 33%, 50%, and 67%. Coconut fibers (15 mm length) were added to mitigate the reduction in mechanical properties caused by EPS and cement replacement. Used cooking oil (UCO) was employed as a sustainable alternative to commercial superplasticizers, and its impact on mechanical and durability properties was assessed. Key properties, including density, modulus of elasticity (MOE), compressive strength, and modulus of rupture (MOR), were evaluated in accordance with ASTM C129 standards for lightweight masonry units. Durability was assessed through water absorption tests and exposure to severe weathering, including cyclic ponding in 5% sulfuric acid and supersaturated brine solutions. The results show that despite that EPS beads addition and exposure to harsh weathering decreased the mechanical and durability properties, LRBAC specimens satisfied the ASTM C129 criteria for lightweight concrete masonry units. Moreover, LRBAC incorporating EPS and FA are less costly and have lower carbon footprint, highlighting the benefit of using C&D and industrial waste for production of sustainable lightweight concrete for masonry units. |
| format | Article |
| id | doaj-art-c738d36e368347db8917c00f2d9bd70b |
| institution | Kabale University |
| issn | 2590-1230 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Engineering |
| spelling | doaj-art-c738d36e368347db8917c00f2d9bd70b2025-01-16T04:29:13ZengElsevierResults in Engineering2590-12302025-03-0125104019Investigating lightweight recycled brick aggregate concrete incorporating EPS beads: Application to masonry unitsSamina Hameed0Syed Asad Ali Gillani1Muhammad Tahir2Rashid Hameed3Safeer Abbas4Moncef L. Nehdi5Muhammad Ahmad6Department of Civil Engineering, University of Engineering & Technology Lahore, PakistanDepartment of Civil Engineering, University of Engineering & Technology Lahore, PakistanDepartment of Civil Engineering, University of Engineering & Technology Lahore, Pakistan; Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering, Shenzhen University, Shenzhen, 518060, ChinaDepartment of Civil Engineering, University of Engineering & Technology Lahore, PakistanDepartment of Civil Engineering, University of Engineering & Technology Lahore, Pakistan; Corresponding authors.College of Engineering & Physical Sciences, University of Guelph, Guelph, Ontario, N1G 2W1, Canada; Corresponding authors.Department of Civil Engineering, University of Engineering & Technology Lahore, PakistanConstruction and demolition (C&D) waste, including burnt clay bricks and concrete, combined with non-degradable industrial waste such as expanded polystyrene (EPS), presents a significant global disposal challenge. Recycling C&D waste into concrete aggregates offers a sustainable solution, while incorporating EPS in lightweight concrete production supports eco-friendly construction. This study focuses on developing lightweight recycled brick aggregate concrete (LRBAC) using recycled brick aggregate (RBA) and EPS beads, specifically designed for partition walls in seismic structures, where reduced weight enhances structural performance. To minimize the carbon footprint, cement was partially replaced with fly ash at 33%, 50%, and 67%. Coconut fibers (15 mm length) were added to mitigate the reduction in mechanical properties caused by EPS and cement replacement. Used cooking oil (UCO) was employed as a sustainable alternative to commercial superplasticizers, and its impact on mechanical and durability properties was assessed. Key properties, including density, modulus of elasticity (MOE), compressive strength, and modulus of rupture (MOR), were evaluated in accordance with ASTM C129 standards for lightweight masonry units. Durability was assessed through water absorption tests and exposure to severe weathering, including cyclic ponding in 5% sulfuric acid and supersaturated brine solutions. The results show that despite that EPS beads addition and exposure to harsh weathering decreased the mechanical and durability properties, LRBAC specimens satisfied the ASTM C129 criteria for lightweight concrete masonry units. Moreover, LRBAC incorporating EPS and FA are less costly and have lower carbon footprint, highlighting the benefit of using C&D and industrial waste for production of sustainable lightweight concrete for masonry units.http://www.sciencedirect.com/science/article/pii/S2590123025001070ConcreteRecycled aggregatesEPS beadsUsed cooking oil, Coconut fibersSustainability |
| spellingShingle | Samina Hameed Syed Asad Ali Gillani Muhammad Tahir Rashid Hameed Safeer Abbas Moncef L. Nehdi Muhammad Ahmad Investigating lightweight recycled brick aggregate concrete incorporating EPS beads: Application to masonry units Results in Engineering Concrete Recycled aggregates EPS beads Used cooking oil, Coconut fibers Sustainability |
| title | Investigating lightweight recycled brick aggregate concrete incorporating EPS beads: Application to masonry units |
| title_full | Investigating lightweight recycled brick aggregate concrete incorporating EPS beads: Application to masonry units |
| title_fullStr | Investigating lightweight recycled brick aggregate concrete incorporating EPS beads: Application to masonry units |
| title_full_unstemmed | Investigating lightweight recycled brick aggregate concrete incorporating EPS beads: Application to masonry units |
| title_short | Investigating lightweight recycled brick aggregate concrete incorporating EPS beads: Application to masonry units |
| title_sort | investigating lightweight recycled brick aggregate concrete incorporating eps beads application to masonry units |
| topic | Concrete Recycled aggregates EPS beads Used cooking oil, Coconut fibers Sustainability |
| url | http://www.sciencedirect.com/science/article/pii/S2590123025001070 |
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