Technical and environmental potentialities of recycled steel fiber reinforced concrete for structural applications
| Autor: | Tiago Valente, Joaquim A. O. Barros, Cristina Maria Vieira Frazão, Verónica García-Cortés, J. Alexandre Bogas |
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| Přispěvatelé: | Universidade do Minho |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
business.product_category
Materials science 0211 other engineering and technologies 02 engineering and technology Fiber-reinforced concrete Bending law.invention Life cycle assessment law Recycled steel fibers Engenharia e Tecnologia::Engenharia Civil 021105 building & construction Architecture Ultimate tensile strength Post-cracking constitutive laws Industrial steel fiber reinforced concrete Safety Risk Reliability and Quality Civil and Structural Engineering Cement Industrial steel fibers Science & Technology business.industry Building and Construction Structural engineering 021001 nanoscience & nanotechnology Wedge (mechanical device) Shear (sheet metal) Mechanics of Materials Recycled steel fiber reinforced concrete 0210 nano-technology Reduction (mathematics) business Beam (structure) |
| Popis: | The use of recycled materials and industrial by-products as sustainable constituents of cementbased materials could be an environmentally and technically promising solution for application to structural elements. In the present work, the technical and environmental impact of using recycled steel fibers as an alternative to industrial steel fibers for concrete reinforcement was assessed at material level. Numerical simulations were performed to derive the post-cracking constitutive laws of the developed Recycled Steel Fiber Reinforced Concrete (RSFRC) and Industrial Steel Fiber Reinforced Concrete (ISFRC) by inverse analysis of experimental results obtained from three-point notched beam bending tests (3PNBBT), round panel tests supported in three points (RPT-3ps) and double edge wedge splitting tests (DEWST). These simulations were able of fitting with high accuracy the experimental results and consequently to derive the tensile stresscrack width relationships of RSFRC and ISFRC that was used to numerically simulate the bending response of a T-cross section steel RSFRC beam failing in shear. The environmental impact of the incorporation of RSF in concrete in comparison with ISFRC was evaluated using Life Cycle Assessment methodology. The reduction of the environmental impact of the production of RSFRC compared to ISFRC with the same concrete strength class is demonstrated. The 1st author would like to thank the FCT for the financial support through the Research Grants PD/BD/113638/2015 under the Doctoral Program in Eco Construction and Rehabilitation – EcoCoRe. |
| Databáze: | OpenAIRE |
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