RT info:eu-repo/semantics/article
T1 Optimization of concrete containing wind-turbine wastes following mechanical, environmental and economic indicators
A1 Hurtado Alonso, Nerea
A1 Manso Morato, Javier
A1 Revilla Cuesta, Víctor
A1 Ortega López, Vanesa
A1 Skaf Revenga, Marta
K1 Recycled Concrete Aggregate
K1 Raw-crushed wind-turbine blades
K1 Concrete
K1 Response surface method
K1 Mechanical performance
K1 Global warming potential
K1 Cost
K1 Materiales de construcción
K1 Building materials
K1 Hormigón-Ensayos
K1 Concrete-Testing
K1 Ingeniería civil
K1 Civil engineering
AB The decommissioning of wind farms produces two primary waste materials: Recycled Concrete Aggregate (RCA) derived from the foundation concrete, and Raw-Crushed Wind-Turbine Blade (RCWTB) obtained through the crushing and sieving of the blades. Incorporating these materials into concrete enhances sustainability and, in some cases, improves mechanical properties while reducing the final environmental impact and cost compared to conventional concrete. A comprehensive characterization of the mechanical properties of concrete mixtures with varying RCA (0–100%) and RCWTB (0–10%) contents was conducted, these mixes being designed with increased water and admixture contents to compensate for the expected loss of workability caused by the addition of these waste materials. A Life-Cycle Assessment (LCA) and cost evaluation were also performed. The optimization of these mixtures was addressed using the Response Surface Method (RSM). The optimization process revealed that intermediate combinations of RCA (50%) and RCWTB (5%) yielded maximum flexural-tensile properties. However, achieving optimal performance proved more challenging when simultaneous optimization included compressive strength and deformability properties, such as modulus of elasticity and Poisson’s coefficient. For these properties, the optimal mix incorporated 88% RCA and 0% RCWTB. The RSM analysis demonstrated the feasibility of incorporating both RCA and RCWTB into concrete mixtures, mainly intended to work under bending stresses, but it also highlighted the complexities of achieving optimal performance when all mechanical properties were simultaneously considered. This research underscores the potential for these recycled materials to contribute to more sustainable concrete production while addressing the trade-offs in mechanical performance optimization.
PB Elsevier
SN 2772-3976
YR 2025
FD 2025-06
LK http://hdl.handle.net/10259/10479
UL http://hdl.handle.net/10259/10479
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 17-may-2025