2026-07-20T05:37:13Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/102012025-03-14T10:56:04Zcom_10259_6171com_10259_5086com_10259_2604col_10259_7105

Manso Morato, Javier Revilla Cuesta, Víctor Espinosa González, Ana Belén Faleschini, Flora San José Lombera, José Tomás Ortega López, Vanesa 2025-02-11T09:20:27Z 2025-02-11T09:20:27Z 2024 978-84-09-58990-6 978-84-09-58989-0 2386-8198 http://hdl.handle.net/10259/10201 Comunicación presentada en: 10th Euro-American Congress REHABEND 2024, durante los días 7-10 de mayo en Gijón (España). The sustainability of the concrete industry is an important issue worldwide. The need for concrete increases steadily, and the natural-resource exploitation and cement manufacturing are speeding up climate change and global warming, among others. The wind-energy sector is also facing sustainability issues, as some of the first-installed wind-turbine blades are approaching the end of their approximately twenty-year life span and need to be replaced. These two different fields can help each other by adding crushed wind-turbine blade to concrete, so a second life for the crushed wind-turbine blades can be found, thus also reducing the use of cement, which is the concrete´s most polluting raw material. This study aims to find out whether the addition of crushed wind-turbine blade is valid for structural use up to 6% vol., in steps of 1.5% vol. Hence, five different mixtures were made incorporating this alternative material as an addition and maintaining constant the aggregate and cement content. Occluded-air content, compressive strength, modulus of elasticity and Poisson´s coefficient have all been evaluated. This analysis demonstrates that the higher the crushed-blade content, the higher the occluded air, although it did not result in a notable loss of the compression-related mechanical properties when added in small percentages. Nevertheless, when the percentage of crushed wind-turbine blade was increased, these properties decreased their values, yet still largely maintaining their suitability for structural usage. The results yield that the addition of crushed wind-turbine blade to concrete fulfills the requirements for be used in structural applications becoming a plausible solution to the raising sustainability issue of the concrete-manufacturing industry and the wind-farming sector. The authors acknowledge the funding of this research work to the Spanish Ministry of Universities, MICINN, AEI, EU, FEDER and NextGenerationEU/PRTR [PID2020-113837RB-I00; 10.13039/501100011033; TED2021-129715B-I00; FPU21/04364]; JCyL and FEDER [UIC-231; BU066-22]; and, finally, the University of Burgos [SUCONS, Y135.GI]. application/pdf eng Universidad de Cantabria REHABEND 2024 Euro-American Congress. p. 200 Sustainability Concrete Wind-turbine Blade Compression-related mechanical properties Hormigón-Ensayos Materiales de construcción Concrete-Testing Building materials Compression-related performance of a structural concrete produced with crushed wind-turbine blade info:eu-repo/semantics/conferenceObject info:eu-repo/semantics/acceptedVersion info:eu-repo/semantics/openAccess 200