2026-09-14T08:36:50Zhttps://riubu.ubu.es/oai/request

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

00925njm 22002777a 4500 dc Revilla Cuesta, Víctor author Skaf Revenga, Marta author Ortega López, Vanesa author Manso Villalaín, Juan Manuel author 2023-11 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. 0921-3449 http://hdl.handle.net/10259/8003 10.1016/j.resconrec.2023.107160 Wind-turbine blade Recycling Waste characterization Concrete desing Workability and mixing process Compressive behavior Raw-crushed wind-turbine blade: Waste characterization and suitability for use in concrete production