2026-04-17T16:25:42Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/97632024-12-11T01:05:23Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172

Revilla Cuesta, Víctor Hurtado Alonso, Nerea Manso Morato, Javier Serrano López, Roberto Manso Villalaín, Juan Manuel 2024-12-10T10:27:04Z 2024-12-10T10:27:04Z 2024-05 0944-1344 http://hdl.handle.net/10259/9763 10.1007/s11356-024-33720-0 1614-7499 Raw-crushed wind-turbine blade (RCWTB), a waste from the recycling of wind-turbine blades, is used as a raw material in concrete in this research. It contains not only fiberglass-composite fibers that bridge the cementitious matrix but also polyurethane and balsa-wood particles. Therefore, concrete containing RCWTB can be notably affected by moisture and temperature fluctuations and by exposure to high temperatures. In this research, the performance of five concrete mixes with 0.0%, 1.5%, 3.0%, 4.5%, and 6.0% RCWTB, respectively, is studied under moist/dry, alternating-sign-temperature-shock, and high-temperature-shock tests. Two damage mechanisms of RCWTB within concrete were found through these tests: on the one hand, micro-cracking of the cementitious matrix, which was verified by microscopic analyses and was dependent on concrete porosity; on the other, damage and degradation of the RCWTB components, as the polyurethane melted, and the balsa-wood particles burned. Both phenomena led to larger remaining-strain levels and reduced concrete compressive strength by up to 25% under temperature and humidity variations, although the bridging effect of the fiberglass-composite fibers was effective when adding RCWTB amounts higher than 3.0%. The compressive-strength loss after the high-temperature-shock test increased with the RCWTB content, reaching maximum values of 8% after an exposure time of 7 days. Statistical analyses revealed that effect of the RCA amount in the concrete was conditioned by the exposure times in all the tests. The accurate definition of those times is therefore key to set an RCWTB content in concrete that ensures its suitable behavior under the environmental conditions analyzed. Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This research work was funded by the Spanish Ministry of Universities, MICINN, AEI, EU, ERDF, and NextGenerationEU/PRTR [grant numbers PID2020-113837RB-I00, PID2023-146642OB-I00,https://doi.org/10.13039/501100011033, TED2021-129715B-I00, and FPU21/04364]; the Junta de Castilla y León (Regional Government) and ERDF [grant numbers UIC-231, BU033P, and3; BU066-22]; and, finally, the University of Burgos [grant number SUCONS, Y135.GI]. application/pdf eng Springer Environmental Science and Pollution Research. 2024, V. 31, n. 25, p. 37757-37776 https://doi.org/10.1007/s11356-024-33720-0 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113837RB-I00/ES/ESTUDIO A ESCALA REAL DE HORMIGONES SOSTENIBLES, HIDRAULICOS Y BITUMINOSOS, DE ALTAS PRESTACIONES, FABRICADOS CON RESIDUOS SIDERURGICOS Y DE CONSTRUCCION/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/PID2023-146642OB-I00/ES/Análisis integral de hormigones, con triturado de palas de aerogeneradores y árido reciclado de sus cimentaciones, diseñados para la industria de la prefabricación/WINDPRE/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica, Técnica y de Innovación 2021-2023/TED2021-129715B-I00/ES/Reciclaje de palas y cimentaciones de aerogeneradores en hormigón para nuevos parques eólicos de alta potencia/ info:eu-repo/grantAgreement/MIU/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/FPU21%2F04364/ES/ info:eu-repo/grantAgreement/Junta de Castilla y León//UIC 231/ info:eu-repo/grantAgreement/Junta de Castilla y León//BU033P23//Reciclaje de palas de aerogenerador para una industria eólica sostenible: estudio del tratamiento en origen y optimización de su contenido en mezclas de hormigón/EOLOOP/ info:eu-repo/grantAgreement/Junta de Castilla y León//BU066-22/ info:eu-repo/grantAgreement/UBU//Y135.GI/ Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Raw-crushed wind-turbine blade Concrete Moist/dry test Alternating-sign temperatures Thermal shock Multiple-regression statistical prediction Hormigón-Ensayos Materiales de construcción Concrete-Testing Building materials Effects of temperature and moisture fluctuations for suitable use of raw-crushed wind-turbine blade in concrete info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Environmental Science and Pollution Research 31 25 37757 37776