2026-07-19T01:05:08Zhttps://riubu.ubu.es/oai/request

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

00925njm 22002777a 4500 dc Manso Morato, Javier author Revilla Cuesta, Víctor author Espinosa González, Ana Belén author Faleschini, Flora author San José Lombera, José Tomás author Ortega López, Vanesa author 2024 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. 978-84-09-58990-6 978-84-09-58989-0 2386-8198 http://hdl.handle.net/10259/10201 Sustainability Concrete Wind-turbine Blade Compression-related mechanical properties Compression-related performance of a structural concrete produced with crushed wind-turbine blade