2026-05-23T10:48:26Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/83482024-01-16T01:05:21Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172

Mechanical properties of sustainable concrete containing powdery ladle furnace slag from different sources López Ausín, Víctor Revilla Cuesta, Víctor Skaf Revenga, Marta Ortega López, Vanesa Concrete Ladle furnace slag Pre-treatment Mechanical performance Analysis of variance Multi-criteria optimum mix Ingeniería civil Civil engineering Materiales de construcción Building materials A suitable content of powdery Ladle Furnace Slag (LFS) has to be selected to balance its hydraulic and expansive properties when added to concrete. In this study, the performance of concrete containing two powdery LFS is studied: H-type LFS, stabilized before use, and N-type LFS, used in its original state. Lower expansiveness was observed 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 of concrete. 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 were confirmed through scanning electron microscopy. In general, the H-type LFS improved the mechanical properties and 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. 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]. 2024-01-15T12:55:45Z 2024-01-15T12:55:45Z 2024-02 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 0032-5910 http://hdl.handle.net/10259/8348 10.1016/j.powtec.2024.119396 eng Powder Technology. 2024, V. 434, 119396 https://doi.org/10.1016/j.powtec.2024.119396 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Elsevier https://riubu.ubu.es/bitstream/10259/8348/4/L%c3%b3pez-pt_2024.pdf.jpg Hispana TEXT http://creativecommons.org/licenses/by-nc-nd/4.0/ RIUBU. Repositorio Institucional de la Universidad de Burgos http://hdl.handle.net/10259/8348