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oai:riubu.ubu.es:10259/62002022-11-22T09:02:34Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172

Ortega López, Vanesa García Llona, Aratz Revilla Cuesta, Víctor Santamaría, Amaia San José Lombera, José Tomás 2021-11-22T08:49:01Z 2021-11-22T08:49:01Z 2021-11 2352-7102 http://hdl.handle.net/10259/6200 10.1016/j.jobe.2021.102548 The feasibility of manufacturing fiber-reinforced concretes of high workability through additions of high volumes of electric arc furnace steel slag is evaluated in this paper, using sustainable binders with ground granulated blast furnace slag and ladle furnace slag as a supplementary cementitious material. An extensive experimental plan is developed to test four (self-compacting and pumpable) concrete mixtures, some reinforced with 0.5% vol. of (metallic or synthetic) fibers, in both the fresh and the hardened state. Very specific mechanical aspects are examined, such as the evaluation of both longitudinal and transversal stress-strain compressive behavior, and the assessment of direct tensile strength through the “dog-bone” test. The results of testing this sustainable concrete design yielded suitable mechanical strengths, and good toughness, ductility and impact strength, among other properties. Good adhesion between the fibers and the cementitious matrix was also evident from the fiber pull-out test results. Finally, the overall results confirmed that the use of electric arc furnace steel slag can make a real contribution to construction-sector sustainability and that the mechanical behavior of these novel concretes meets the basic design requirements for use in real structures. Spanish Ministries MCI, AEI, EU and ERDF [RTI2018-097079-B-C31; 10.13039/501100011033; FPU17/03374]; the Junta de Castilla y León (Regional Government) and ERDF [UIC-231, BU119P17]; the Basque Government research group [IT1314-19]; Youth Employment Initiative (JCyL) and ESF [UBU05B_1274]; the University of Burgos [Y135.GI] and the University of the Basque Country [PPGA20/26]. Likewise, our thanks to CHRYSO and HORMOR for supplying the materials used in this research. eng Elsevier Journal of Building Engineering. 2021, V. 43, 102548 https://doi.org/10.1016/j.jobe.2021.102548 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-097079-B-C31/ES/DESARROLLO SOSTENIBLE DE MEZCLAS HIDRAULICAS, A PARTIR DE ESCORIAS DE ACERIA, PARA UNA EDIFICACION MAS ADAPTADA AL CAMBIO CLIMATICO. DISEÑOS A RESISTENCIAS MEDIAS info:eu-repo/grantAgreement/Junta de Castilla y León//BU119P17//Innovación Competitiva en la Utilización de Escorias Siderúrgicas para la elaboración de Hormigones de Altas Prestaciones. Aplicaciones en la Industrialización info:eu-repo/grantAgreement/MICIU/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/FPU17%2F03374 info:eu-repo/grantAgreement/Junta de Castilla y León//UBU05B_1274 info:eu-repo/grantAgreement/UBU//Y135.GI info:eu-repo/grantAgreement/UPV%2FEHU//PPGA20%2F26 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Slag Aggregate and binder Fiber-reinforced high-workability concrete Fracture toughness Dog-bone test Stress-strain behavior Ingeniería civil Materiales de construcción Ensayos (Tecnología) Civil engineering Building materials Testing Fiber-reinforcement and its effects on the mechanical properties of high-workability concretes manufactured with slag as aggregate and binder info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion