RT info:eu-repo/semantics/article
T1 Mechanical properties of sustainable concrete containing powdery ladle furnace slag from different sources
A1 López Ausín, Víctor
A1 Revilla Cuesta, Víctor
A1 Skaf Revenga, Marta
A1 Ortega López, Vanesa
K1 Concrete
K1 Ladle furnace slag
K1 Pre-treatment
K1 Mechanical performance
K1 Analysis of variance
K1 Multi-criteria optimum mix
K1 Ingeniería civil
K1 Civil engineering
K1 Materiales de construcción
K1 Building materials
AB A suitable content of powdery Ladle Furnace Slag (LFS) has to be selected to balance its hydraulic and expansiveproperties when added to concrete. In this study, the performance of concrete containing two powdery LFS isstudied: H-type LFS, stabilized before use, and N-type LFS, used in its original state. Lower expansiveness wasobserved in the H-type LFS, and strength development was assisted by the formation of calcium-silicate-hydrates.Therefore, it increased the modulus of elasticity, the splitting tensile strength, and the flexural strength ofconcrete. Higher hydraulicity and expansiveness were found in the N-type LFS, which improved compressivebehavior-related properties up to a content of 10% but reduced tensile-related properties. These aspects wereconfirmed through scanning electron microscopy. In general, the H-type LFS improved the mechanical propertiesand carbon footprint of concrete, and its use is recommended in a multi-criteria approach, although the difference between both LFS was only statistically significant at advanced ages.
PB Elsevier
SN 0032-5910
YR 2024
FD 2024-02
LK http://hdl.handle.net/10259/8348
UL http://hdl.handle.net/10259/8348
LA eng
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]; 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 22-dic-2024