RT info:eu-repo/semantics/article
T1 Dimensional stability and water transport behavior of concrete with high contents of wind‐turbine blade waste
A1 Manso Morato, Javier
A1 Hurtado Alonso, Nerea
A1 Espinosa González, Ana Belén
A1 Revilla Cuesta, Víctor
A1 Ortega López, Vanesa
K1 Concrete
K1 Dimensional stability
K1 Mechanical properties variations
K1 Raw-crushed wind-turbine blade
K1 Scanning electron microscopy
K1 Water transport
K1 Aerogeneradores
K1 Wind turbines
AB Fiber addition is a common strategy to enhance concrete's durability, avoiding cracks and reducing penetration of harmful agents. In this research, a sustainable fiber-like material obtained from mechanical recycling of dismantled wind-turbine blades and made up of glass fiber-reinforced polymer (GFRP) fibers and microfibers, balsa wood, and polymeric particles, named raw-crushed wind-turbine blade (RCWTB), was added into concrete in high quantities. For studying dimensional stability and water transport behavior of concrete containing this waste, 11 mixes were manufactured with RCWTB contents up to 10 vol.% as aggregate replacement. Dimensional stability was enhanced by RCWTB incorporation, as shrinkage and linear coefficient of thermal expansion were reduced up to 47% and 17%, respectively. Furthermore, when tested for accelerated aging, RCWTB mixes experienced similar or slightly lower thermal strains compared to the reference mix. RCWTB also reduced the variations in the mechanical properties after accelerated aging and even led to improved flexural (+9.75%) and compressive (+11.14%) strengths, partly thanks to the proper stitching of the matrix by the GFRP fibers, as scanning electron microscope images and energy dispersive x-ray spectra demonstrated. Concrete porosity in both full-immersion and capillarity terms increased up to 70%–75% following RCWTB addition due to higher air entrainment and the porous particles of balsa wood in RCWTB acting as water-storage points, yet porosity was always within structural standards. Overall, mixes with proven proper performance regarding both concrete dimensions were produced with high proportions of RCWTB, being therefore suitable for applications in which such performance is of utmost relevance.
PB Wiley
SN 1464-4177
YR 2026
FD 2026-02
LK https://hdl.handle.net/10259/10950
UL https://hdl.handle.net/10259/10950
LA eng
NO This research work was supported by the MICIU, AEI, EU, ERDF and NextGenerationEU/PRTR (grant numbers PID2023-146642OB-I00; 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).
DS Repositorio Institucional de la Universidad de Burgos
RD 05-may-2026