RT info:eu-repo/semantics/conferenceObject
T1 Evaluation of the behaviour of structural concrete bearing waste wind-turbine blade under tensile stresses
A1 Hurtado Alonso, Nerea
A1 López Ausín, Víctor
A1 Santamaría, Amaia
A1 Fiol Olivan, Francisco
A1 Skaf Revenga, Marta
A1 Manso Villalaín, Juan Manuel
K1 Concrete
K1 Wind-turbine Blade
K1 Mechanical properties
K1 Tensile stresses
K1 Hormigón-Ensayos
K1 Concrete-Testing
K1 Materiales de construcción
K1 Building materials
AB It is generally acknowledged that it is an urgent task of the concrete industry to find new waysof introducing waste materials in their mixtures in order to increase its sustainability. Windpower industry can play an important role in this challenge, while solving the problem of therecycling of the old wind turbine structures that are reaching the end of their lifecycle, whichis currently imperative. Hence, the need for the disposal of Waste Wind-Turbine Blade(WWTB) sets an opportunity to introduce it after crushing as a raw material in concrete, beingable to reduce its content of natural aggregates and cement. This research aims to conduct anexhaustive material characterization and analyse the feasibility of adding WWTB in concretefor structural purposes. For this study, five different concrete mixes were produced withvariable WWTB volume contents (0.0%, 1.5%, 3.0%, 4.5% and 6.0%). The amount ofsiliceous aggregate used in all five mixtures remained invariable, as well as the cementcontent. All the resulting mixtures were characterised in terms of the slump, fresh- andhardened-density tests. Besides, splitting tensile strength and flexural strength allowedevaluating the performance of the concrete mixes under tensile stresses. The resultsdemonstrate that a rise in the WWTB content up to 1.5% can result in a slight increase of thesplitting tensile strength, whereas high contents of this waste (6.0%) allow maintainingconstant the flexural strength. The values of both properties remain approximately stablewhen adding WWTB, thus preserving the basic mechanical properties of structural concrete.According to this study, it is feasible to evaluate the addition of WWTB as a method ofobtaining structural concrete without compromising any of its tensile-related mechanicalproperties, simultaneously transform an industry hitherto considered polluting into a moresustainable one.
PB Universidad de Cantabria
SN 978-84-09-58990-6
SN 2386-8198
YR 2024
FD 2024
LK http://hdl.handle.net/10259/10200
UL http://hdl.handle.net/10259/10200
LA eng
NO Comunicación presentada en: 10th Euro-American Congress REHABEND 2024, durante los días 7-10 de mayo en Gijón (España)
NO 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; FPU21/04364]; the Junta de Castilla y León (Regional Government) and ERDF [UIC-231; BU066-22]; and, finally, the University of Burgos [grant number SUCONS, Y135.GI].
DS Repositorio Institucional de la Universidad de Burgos
RD 04-mar-2025