2026-04-19T04:45:45Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/109692025-10-21T00:05:32Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172

Manso Morato, Javier 876 600 0000-0002-9145-3595 Hurtado Alonso, Nerea 877 600 0009-0007-5363-3273 Revilla Cuesta, Víctor 722 600 0000-0003-3337-6250 Serrano López, Roberto 538 600 0000-0002-7156-4693 Ortega López, Vanesa 403 600 0000-0003-0212-355X 2025-10-20T07:40:00Z 2025-10-20T07:40:00Z 2025-03 2522-5731 https://hdl.handle.net/10259/10969 10.1007/s42247-025-01060-5 2522-574X Raw-Crushed Wind-Turbine Blade (RCWTB) is yielded through non-selective cutting and crushing of wind-turbine blades, which has a high content of fiberglass-composite fibers. These fibers can potentially increase the energy-absorption capacity and ductility of concrete, and even partially compensate for the higher brittleness because of the addition of Coarse Recycled Aggregate (CRA). This paper therefore analyzes the behavior under monotonic compressive and bending loading of low-strength structural concrete (target compressive strength of 25 MPa) produced with CRA amounts of 50% and 100% and RCWTB contents of 0% and 10%. Both the under-bending load-deflection curves and the under-compression stress-strain curves in both the longitudinal and transverse directions showed that RCWTB increased concrete deformability. Thus, it decreased the elastic stiffness and increased the fracture and peak strains and deflections, improving the load-bearing capacity. Compressive and flexural strengths were not adversely affected by RCWTB, so that a higher deformability augmented the absorbed energy. This gain was as high as 469% when a bending load was applied to lowstrength concrete with 50% CRA. The pre-failure beneficial effect of RCWTB was more noticeable for a CRA content of 100% in the under-compression longitudinal stress-strain performance, due to the higher tensile stress supported by the RCWTB fibers prior to failure. However, the most suitable CRA content in the under-bending load-deflection performance and the under-compression stress-strain behavior in the transverse direction was 50%, which limited the micro-cracking of the cementitious matrix. The interaction between both wastes was statistically key to define the deformational and energyabsorption behavior of the low-strength structural concrete made with CRA and RCWTB simultaneously. This research work was supported by MICIU, AEI, EU, ERDF and NextGenerationEU/PRTR [grant numbers PID2020-113837RB-I00; PID2023-146642OB-I00; https://doi.org/10.13039/501100011033; TED2021-129715B-I00; FPU21/04364]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231; BU033P23; BU066-22]; and, finally, the University of Burgos [grant number SUCONS, Y135.GI]. application/pdf eng Springer Emergent Materials. 2025, V. 8, n. 6, p. 4989-5011 https://doi.org/10.1007/s42247-025-01060-5 Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Low-strength Coarse recycled aggregate Raw-crushed wind-turbine blades (RCWTB) Load-deflection bending curve Stress-strain compression curve Transverse deformability Ingeniería civil Materiales de construcción Materiales-ensayos Civil engineering Building materials Materials-Testing Deformational and energy-absorption performance of low-strength structural concrete with joint additions of raw-crushed wind-turbine blade and coarse recycled aggregate info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Emergent Materials 8 6 4989 5011 THUMBNAIL Manso-em_2025.pdf.jpg Manso-em_2025.pdf.jpg IM Thumbnail image/jpeg 4752 https://riubu.ubu.es/bitstream/10259/10969/4/Manso-em_2025.pdf.jpg deac472d8f60c10669924dbe7e2352ab MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 1362 https://riubu.ubu.es/bitstream/10259/10969/3/license.txt 5d013bfa6e473ff0db22cd82a4d71a70 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 908 https://riubu.ubu.es/bitstream/10259/10969/2/license_rdf 0175ea4a2d4caec4bbcc37e300941108 MD5 2 ORIGINAL Manso-em_2025.pdf Manso-em_2025.pdf application/pdf 4505510 https://riubu.ubu.es/bitstream/10259/10969/1/Manso-em_2025.pdf ed6aa0c704f76cc1e8e23ad246011866 MD5 1 10259/10969 oai:riubu.ubu.es:10259/10969 2025-10-21 02:05:32.459 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es RWwgYXV0b3IgY29tbyDDum5pY28gdGl0dWxhciBkZSBsb3MgZGVyZWNob3MgZGUgcHJvcGllZGFkIGludGVsZWN0dWFsIGRlIGxhIG9icmEsIG8gZGlzcG9uaWVuZG8gZGUgbG9zIGRlYmlkb3MgcGVybWlzb3MgZGUgbG9zIG90cm9zIHRpdHVsYXJlcywgc2kgbG9zIGh1YmllcmEsIHkgZW4gdmlydHVkIGRlIGxvcyBkZXJlY2hvcyBxdWUgbGUgY29uZmllcmUgbGEgbGVnaXNsYWNpw7NuIHZpZ2VudGUgc29icmUgcHJvcGllZGFkIGludGVsZWN0dWFsIHkgZGVyZWNob3MgZGUgYXV0b3IsIApBVVRPUklaQSBhIGxhIFVuaXZlcnNpZGFkIGRlIEJ1cmdvcyBhIGRpZnVuZGlyLCBkZSBtYW5lcmEgZ3JhdHVpdGEsIGVsIGNvbnRlbmlkbyBkZSBsb3MgYXJjaGl2b3MgZGlnaXRhbGVzIHF1ZSBjb3JyZXNwb25kZW4gYWwgZG9jdW1lbnRvIGRlc2NyaXRvIGFudGVyaW9ybWVudGUsIGNvbiBjYXLDoWN0ZXIgbm8gZXhjbHVzaXZvIHkgZGUgbWFuZXJhIHDDumJsaWNhIGVuIGFjY2VzbyBhYmllcnRvIGEgdHJhdsOpcyBkZSBJbnRlcm5ldCwgcGFyYSBsbyBxdWUgbGEgQmlibGlvdGVjYSBwcm9jZWRlcsOhIGEgYXJjaGl2YXJsb3MgZW4gZWwgUmVwb3NpdG9yaW8gSW5zdGl0dWNpb25hbC4gQXNpbWlzbW8gYXV0b3JpemEgYSBsYSBVbml2ZXJzaWRhZCBkZSBCdXJnb3MgYSByZWFsaXphciBsYXMgdHJhbnNmb3JtYWNpb25lcyBuZWNlc2FyaWFzIGRlIGZvcm1hdG8sIG5vIGRlIGNvbnRlbmlkbywgcGFyYSBnYXJhbnRpemFyIGxhIHByZXNlcnZhY2nDs24geSBlbCBhY2Nlc28gZW4gZWwgZnV0dXJvLgoKRWwgYXV0b3IgZGlzcG9uZSwgZW4gdG9kbyBjYXNvLCBkZWwgZGVyZWNobyBhIHJldm9jYXIgZXN0YSBhdXRvcml6YWNpw7NuLgoKTGEgY2VzacOzbiBkZSBkZXJlY2hvcyBkZSBlc3RhIG9icmEgc2UgZW5jdWVudHJhIHN1amV0YSBhIGxhIGxlZ2lzbGFjacOzbiB2aWdlbnRlIHNvYnJlIHByb3BpZWRhZCBpbnRlbGVjdHVhbCB5IGRlcmVjaG9zIGRlIGF1dG9yLiBTdSBkaWZ1c2nDs24gZW4gZWwgUmVwb3NpdG9yaW8gc2Vyw6EgYmFqbyBsYSBtb2RhbGlkYWQgZGUgbGljZW5jaWEgQ3JlYXRpdmUgQ29tbW9ucyBvIGVxdWl2YWxlbnRlOiByZWNvbm9jaW1pZW50byDigJMgdXNvIG5vIGNvbWVyY2lhbCDigJMgc2luIG9icmEgZGVyaXZhZGEsIHBvciBsYSBxdWUgc2UgcGVybWl0ZSBoYWNlciBjb3BpYSwgZGlzdHJpYnVpciB5IGNvbXVuaWNhciBww7pibGljYW1lbnRlIGxhIG9icmEgc2llbXByZSBxdWUgc2UgY2l0ZSBhbCBhdXRvciwgZWwgdXNvIHF1ZSBzZSBoYWdhIGRlIGVsbGEgc2VhIG5vIGNvbWVyY2lhbCB5IG5vIHNlIGNyZWVuIG9icmFzIGRlcml2YWRhcyBhIHBhcnRpciBkZSBsYSBvcmlnaW5hbC4K