RT info:eu-repo/semantics/article T1 Size effect of steel fiber–reinforced concrete cylinders under compressive fatigue loading: Influence of the mesostructure A1 González Cabrera, Dorys Carmen A1 Mena Alonso, Álvaro A1 Ruiz, Gonzalo A1 Ortega Parreño, José Joaquín A1 Poveda, Elisa A1 Mínguez Algarra, Jesús A1 Yu, Rena C. A1 Rosa, Ángel de la A1 Vicente Cabrera, Miguel Ángel K1 Size effect in fatigue K1 Steel fiber-reinforced concrete K1 Computed tomography K1 Mesostructure K1 Materiales de construcción K1 Building materials K1 Ingeniería civil K1 Civil engineering AB This study deals with the influence of the fiber concrete mesostructure on the size effect under compressivefatigue loading. For this purpose, three series of cylindrical specimens of steel fiber–reinforced concrete werefabricated. Before fatigue testing, all the cylinders were scanned and the main morphological, orientation, anddistribution parameters of the pores and fibers were checked. The images reveal that, near the cylinders’ walls,the porosity is lower than that in the cores and is even lower for large sizes. Additionally, larger specimens aremore vulnerable to compressive fatigue loading, resulting in a reduction in fatigue life. PB Elsevier SN 0142-1123 YR 2023 FD 2023-02 LK http://hdl.handle.net/10259/7452 UL http://hdl.handle.net/10259/7452 LA eng NO The authors are grateful for the financial support from the Ministerio de Economía y Competitividad, Spain with grant nos. PID2019-110928RBC32, PID2019–110928RB–C31, and RTC–2017–6736–3, and from the Junta de Comunidades de Castilla-La Mancha, Spain through grant no. SBPLY/19/180501/000220. DS Repositorio Institucional de la Universidad de Burgos RD 24-dic-2024