RT info:eu-repo/semantics/article
T1 Deformability and energy absorption of concrete made with selectively crushed wind-turbine blade
A1 Revilla Cuesta, Víctor
A1 Hernando Revenga, Manuel
A1 Mourou, Chaimae
A1 Ortega López, Vanesa
K1 Selectively crushed wind-turbine blade
K1 Concrete
K1 Compression
K1 Bending
K1 Load bearing
K1 Energy absorption
K1 Hormigón
K1 Concrete
AB The crushing of the glass fiber-reinforcedpolymer (GFRP) previously separated from theother wind-turbine-blade materials produces a wastewith minimum contents of deformable particles ofbalsa wood and polymers, being mainly composedof GFRP-composite fibers. This residue is namedselectively crushed wind-turbine blade (SCWTB).This research evaluates the impact of adding up to6.0% by volume of SCWTB on the deformability,load-bearing capacity and energy absorption of concrete subjected to compression, bending, and indirect-tensile stresses. SCWTB increased the failurestrain of concrete in the direction parallel to a compression load, although it led the failure and fracturestrains to match. However, the strain increase fromfailure to fracture was 2000–3000 µε in the transverse direction to loading, so concrete with SCWTBwas load-bearing after failure. GFRP-composite fibers’ stitching effect was more noticeable under bending stresses. Thus, 1.5% vol. and 6.0% vol. SCWTBresulted in almost the same bending failure stress inconcrete, around 6.1–6.2 MPa, and contents from 3.0and 6.0% vol. SCWTB provided load-bearing capacity in simple and notched-specimen bending, respectively. In addition, the low content of deformable particles in SCWTB increased the deflection increment from failure to fracture in bending, although thepresence of such particles augmented energy absorption. No SCWTB content provided load-bearingcapacity under indirect-tensile stresses, although itdid increase pre-failure deformability. In general, theenergy absorbed by concrete increased by up to 43%when adding SCWTB, the use of up to 6.0% of thiswaste being recommended to increase the ductility ofconcrete.
PB Springer
SN 1359-5997
YR 2025
FD 2025-10
LK https://hdl.handle.net/10259/10987
UL https://hdl.handle.net/10259/10987
LA eng
NO This research work was supported bythe Spanish Ministry of Science, Innovation and UniversitiesMICIU, AEI, EU, ERDF and NextGenerationEU/PRTR [grantnumbers PID2023-146642OB-I00; https://doi.org/10.13039/501100011033; TED2021-129715B-I00]; the Junta de Castillay León (Regional Government) and ERDF [grant number UIC231; BU033P23]; and, finally, the University of Burgos [grantnumber SUCONS, Y135.GI].
DS Repositorio Institucional de la Universidad de Burgos
RD 05-may-2026