2026-06-10T19:12:29Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/80032023-11-14T01:05:38Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172

Raw-crushed wind-turbine blade: Waste characterization and suitability for use in concrete production Revilla Cuesta, Víctor Skaf Revenga, Marta Ortega López, Vanesa Manso Villalaín, Juan Manuel Wind-turbine blade Recycling Waste characterization Concrete desing Workability and mixing process Compressive behavior Ingeniería civil Materiales de construcción Civil engineering Building materials Many of the first wind-turbine installations are reaching the end of their useful life, so their blades have to be replaced. Inexpensive, sustainable, and straightforward recycling solutions are therefore needed. The conversion of turbine blades into raw materials for concrete solutions is proposed in this paper, through a novel recycling process entailing non-selective cutting, crushing, and sieving of the blade walls, without component separation. The material, Raw-Crushed Wind-Turbine Blade (RCWTB), consists of fiberglass-composite fibers, polyurethane, and balsa-wood particles. It serves as concrete fibers and aggregates, according to its physical and microscopic characterizations. A customized concrete mix design and a five-stage mixing procedure with up to 6% RCWTB achieved suitable workability levels. The compressive strength of the RCWTB concrete was 40 MPa, and it had a higher load-bearing capacity and a lower carbon footprint than ordinary concrete. The results encourage research on the overall performance of RCWTB concretes. This research work was supported by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF and NextGenerationEU/PRTR [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, finally, the University of Burgos [grant number SUCONS, Y135.GI]. 2023-11-13T12:25:38Z 2023-11-13T12:25:38Z 2023-11 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0921-3449 http://hdl.handle.net/10259/8003 10.1016/j.resconrec.2023.107160 eng Resources, Conservation and Recycling. 2023, V. 198, 107160 https://doi.org/10.1016/j.resconrec.2023.107160 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Elsevier