RT info:eu-repo/semantics/article
T1 Exploring the behavior of concrete containing selectively crushed wind-turbine blade from a water-transport perspective
A1 Revilla Cuesta, Víctor
A1 Espinosa González, Ana Belén
A1 Fiol Olivan, Francisco
A1 Serrano López, Roberto
A1 Skaf Revenga, Marta
K1 Selectively crushed wind-turbine blade
K1 Concrete
K1 Water-absorption rate
K1 Effective porosity
K1 Chloride penetration
K1 Water-storage points
K1 Materiales de construcción
K1 Building materials
K1 Hormigón-Ensayos
K1 Concrete-Testing
AB Glass Fiber-Reinforced Polymer (GFRP) can be separated from the other components of wind-turbine blades by mechanical cutting, and subsequently knife crushed. The resulting Selectively Crushed Wind-Turbine Blade (SCWTB) is mostly composed of GFRP-composite fibers, with small contents of porous particles of balsa wood and polymers. SCWTB can be used as non-corrosive reinforcement in concrete, although it modifies its porosity. This study analyzes the effect of up to 6.0 % vol. SCWTB on the porosity and water transport of concrete. The effective porosity and water-absorption rate from water absorption under capillarity revealed that SCWTB favored water entry within the concrete and increased porosity. However, no noticeable increase in water ingress was found in the short term (water penetration under pressure) and in the long term under full immersion up to 4.5 % SCWTB. The GFRP-composite fibers acted as barriers against water passage, and the skin successfully sealed the concrete. 6.0 % SCWTB notably increased the water ingress due to the incorporation of the porous particles that it contained to the capillary pore network of concrete, acting as water-storage points with adequate continuity with the cementitious matrix. Nevertheless, chloride-penetration depths remained always lower than the standard concrete covers for reinforcement, although its diffusion coefficient did increase. In general, SCWTB additions between 1.5 % and 4.5 % did not statistically affect the water-related behavior of concrete. Finally, concrete containing SCWTB exhibited a better water-transport performance than concrete with raw-crushed wind-turbine blade, a waste obtained through blade crushing in a non-selective way that contains higher proportions of porous particles.
PB Elsevier
SN 2214-5095
YR 2025
FD 2025-07
LK http://hdl.handle.net/10259/10515
UL http://hdl.handle.net/10259/10515
LA eng
NO This research work was supported by the Spanish Ministry of Science, Innovation and Universities MICIU, AEI, EU, ERDF and NextGenerationEU/PRTR [grant numbers PID2023–146642OB-I00; 10.13039/501100011033; TED2021–129715B-I00]; the Junta de Castilla y León (Regional Government) and ERDF [grant number UIC-231; BU033P23]; and, finally, the University of Burgos [grant number SUCONS, Y135.GI].
DS Repositorio Institucional de la Universidad de Burgos
RD 05-may-2026