2026-04-18T22:56:48Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/102572025-02-27T01:05:37Zcom_10259_6171com_10259_5086com_10259_2604col_10259_7105

Skaf Revenga, Marta Revilla Cuesta, Víctor San José Lombera, José Tomás López Ausín, Víctor Manso Villalaín, Juan Manuel 2025-02-26T11:26:08Z 2025-02-26T11:26:08Z 2023-06 978-3-031-32518-2 2366-2557 http://hdl.handle.net/10259/10257 10.1007/978-3-031-32519-9 2366-2565 Comunicación oral presentado en: Building for the Future: Durable, Sustainable, Resilient (fib symposium) 2023, celebrado en Estambul (Turquía) durante los días 5-7 de junio. There is a need to promote high performance and sustainable construction materials such as Self-Compacting Concrete (SCC) made from various wastes. In concrete manufacturing, there is a general tendency to worsen the workability and mechanical behavior when working with wastes instead of natural raw materials. It is therefore necessary to use multi-criteria algorithms to analyze the impact of using sustainable materials, and to balance the increase in sustainability with the deterioration of certain performances, such as flowability and strength. In addition, it is also necessary to include a cost analysis in the study, which allows us to find the most suitable products for varied real-life applications. In this research, 19 SCC mixes have been manufactured, where conventional materials (CEM I, natural aggregates, and limestone filler) are progressively substituted by more sustainable ones (Ground Granulated Blast Furnace Slag -GGBFS- replacing cement, and Recycled Concrete Aggregate -RCA- in coarse, fine and filler sizes of the aggregate). The designed mixes are analyzed based on different criteria: mechanical criteria (flowability, compressive strength and modulus of elasticity), sustainability (carbon footprint) and cost. Five different scenarios are proposed for different priorities or situations, which are evaluated using three multi-criteria algorithms. Some of the conclusions of the study show that coarse RCA and limestone fines perform adequately in most scenarios. Fine RCA rates above 50% were not recommended in any of the scenarios. A versatile design would be an SCC with RCA coarse aggregate, limestone fines, GGBFS and 0% fine RCA. This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU [grant numbers PID2020-113837RB-I00; 10.13039/501100011033; TED2021-129715B-I00]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231]; and the University of Burgos [grant number SUCONS, Y135.GI]. application/pdf eng Springer Building for the Future: Durable, Sustainable, Resilient (fib Symposium). 2023, V. 349, p. 679-688 https://link.springer.com/chapter/10.1007/978-3-031-32519-9_66 Carbon footprint Ground granulated blast furnace slag Recycled Concrete Aggregate Self-compacting concrete Concrete optimization Materiales de construcción Hormigón-Ensayos Building materials Concrete-Testing Design Optimization of Self-compacting Concrete with Residues for Different Scenarios info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess 349 679 688