Optimizing sustainable concrete mixes with recycled aggregate and Portland slag cement for reducing environmental impact
Abstract Concrete is the world’s most extensively manufactured material, with the integration of recycled materials becoming crucial for sustainable construction. This study investigates the mechanical properties of concrete mixes containing Recycled Aggregates (RA) and Portland Slag Cement (PSC) to...
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| Format: | Article |
| Language: | English |
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Springer
2024-11-01
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| Series: | Discover Materials |
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| Online Access: | https://doi.org/10.1007/s43939-024-00136-z |
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| author | Lamiaa Ismail Mohamed Abdel Razik El Sayed Ateya Ahmed Said |
| author_facet | Lamiaa Ismail Mohamed Abdel Razik El Sayed Ateya Ahmed Said |
| author_sort | Lamiaa Ismail |
| collection | DOAJ |
| description | Abstract Concrete is the world’s most extensively manufactured material, with the integration of recycled materials becoming crucial for sustainable construction. This study investigates the mechanical properties of concrete mixes containing Recycled Aggregates (RA) and Portland Slag Cement (PSC) to understand their suitability for sustainable construction applications. Utilizing normal-strength concrete with a compressive strength of 35 MPa and a 0.45 water-to-cement ratio, fifteen mix designs were tested, varying RA and PSC replacement levels from 0 to 100% and 0% to 50%, respectively. Comprehensive mechanical testing, including compressive and tensile strength assessments at 7 and 28 days, alongside modulus of elasticity and stress–strain curve evaluations, was conducted. The results reveal that full replacement of Natural Aggregate (NA) with RA decreased compressive strength by 10% and modulus of elasticity by 20%. However, a partial replacement of 25% of Ordinary Portland Cement (OPC) with PSC, in the presence of RA, moderated the reduction of compressive strength to 0.92% and increased the modulus of elasticity by 3.7%. The optimum mix, consisting of 75% OPC, 25% PSC, and 50% RA, significantly enhances concrete’s mechanical properties, recommending it for reinforced concrete applications due to its potential environmental and structural benefits. |
| format | Article |
| id | doaj-art-dfe239199e7e45f1b7799bb8530b0e04 |
| institution | Kabale University |
| issn | 2730-7727 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Springer |
| record_format | Article |
| series | Discover Materials |
| spelling | doaj-art-dfe239199e7e45f1b7799bb8530b0e042024-11-10T12:46:54ZengSpringerDiscover Materials2730-77272024-11-014112010.1007/s43939-024-00136-zOptimizing sustainable concrete mixes with recycled aggregate and Portland slag cement for reducing environmental impactLamiaa Ismail0Mohamed Abdel Razik1El Sayed Ateya2Ahmed Said3Construction and Building Department, Faculty of Engineering, October 6 UniversityDepartment of Civil Engineering, Faculty of Engineering, Al-Azhar UniversityDepartment of Civil Engineering, Faculty of Engineering, Al-Azhar UniversityConstruction and Building Department, Faculty of Engineering, October 6 UniversityAbstract Concrete is the world’s most extensively manufactured material, with the integration of recycled materials becoming crucial for sustainable construction. This study investigates the mechanical properties of concrete mixes containing Recycled Aggregates (RA) and Portland Slag Cement (PSC) to understand their suitability for sustainable construction applications. Utilizing normal-strength concrete with a compressive strength of 35 MPa and a 0.45 water-to-cement ratio, fifteen mix designs were tested, varying RA and PSC replacement levels from 0 to 100% and 0% to 50%, respectively. Comprehensive mechanical testing, including compressive and tensile strength assessments at 7 and 28 days, alongside modulus of elasticity and stress–strain curve evaluations, was conducted. The results reveal that full replacement of Natural Aggregate (NA) with RA decreased compressive strength by 10% and modulus of elasticity by 20%. However, a partial replacement of 25% of Ordinary Portland Cement (OPC) with PSC, in the presence of RA, moderated the reduction of compressive strength to 0.92% and increased the modulus of elasticity by 3.7%. The optimum mix, consisting of 75% OPC, 25% PSC, and 50% RA, significantly enhances concrete’s mechanical properties, recommending it for reinforced concrete applications due to its potential environmental and structural benefits.https://doi.org/10.1007/s43939-024-00136-zRecycled aggregate concrete (RAC)Portland slag cement (PSC)Natural aggregate (NA) replacementSustainability |
| spellingShingle | Lamiaa Ismail Mohamed Abdel Razik El Sayed Ateya Ahmed Said Optimizing sustainable concrete mixes with recycled aggregate and Portland slag cement for reducing environmental impact Discover Materials Recycled aggregate concrete (RAC) Portland slag cement (PSC) Natural aggregate (NA) replacement Sustainability |
| title | Optimizing sustainable concrete mixes with recycled aggregate and Portland slag cement for reducing environmental impact |
| title_full | Optimizing sustainable concrete mixes with recycled aggregate and Portland slag cement for reducing environmental impact |
| title_fullStr | Optimizing sustainable concrete mixes with recycled aggregate and Portland slag cement for reducing environmental impact |
| title_full_unstemmed | Optimizing sustainable concrete mixes with recycled aggregate and Portland slag cement for reducing environmental impact |
| title_short | Optimizing sustainable concrete mixes with recycled aggregate and Portland slag cement for reducing environmental impact |
| title_sort | optimizing sustainable concrete mixes with recycled aggregate and portland slag cement for reducing environmental impact |
| topic | Recycled aggregate concrete (RAC) Portland slag cement (PSC) Natural aggregate (NA) replacement Sustainability |
| url | https://doi.org/10.1007/s43939-024-00136-z |
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