2026-06-30T06:06:39Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/63892022-12-02T12:34:25Zcom_10259_6171com_10259_5086com_10259_2604col_10259_6172
Ortega López, Vanesa
403
600
0000-0003-0212-355X
Faleschini, Flora
66029ebb-03a8-48a6-92dc-5a9092305ffe
600
Pellegrino, Carlo
012b737c-5015-406f-b5f2-7d34d071ba5f
Revilla Cuesta, Víctor
722
500
0000-0003-3337-6250
Manso Villalaín, Juan Manuel
331
600
0000-0003-4964-5128
2022-02-02T10:36:38Z
2022-02-02T10:36:38Z
2022-02
0950-0618
http://hdl.handle.net/10259/6389
10.1016/j.conbuildmat.2021.126280
The environmental conditions to which a concrete may be exposed will condition its real range of use. Thus, concrete behavior must, at all times, be verified under a wide variety of environmental conditions, in order to ensure its real applicability. In this study, the real strength development and durability behavior of a fiber-reinforced self-compacting concrete is analyzed. This particular concrete incorporates 100% coarse (4/12 mm) and fine (0/4 mm) Electric Arc Furnace Slag (EAFS) as aggregate, as well as limestone fines as aggregate powder (0/1.18 mm). Furthermore, Ground Granulated Blast Furnace Slag (GGBFS) was also added as binder. Four mixtures with and without either metallic or synthetic fibers, and different GGBFS contents were designed. Real strength development was evaluated in all the mixes by comparing the strength development of both cores extracted from full-scale beams and wet-cured laboratory specimens. The durability behavior was analyzed by Mercury Intrusion Porosimetry (MIP), freeze/thaw, moist/dry, sulfate-attack, chloride-penetration, carbonation, and SO2-attack tests. On the one hand, the long-term mechanical properties of the cores (real conditions) were similar to the properties of the specimens cured in a moist chamber for 90 days in all the mixes. On the other, the increase in water content when adding fibers to maintain flowability, as well as the addition of GGBFS, resulted in an increase in MIP porosity. Therefore, the use of fibers, both metallic and synthetic, slightly worsened the durability behavior of the concrete, facilitating the entry of aggressive external agents. Nevertheless, the increased flexibility of the cementitious matrix when adding GGBFS was beneficial against moist/dry and sulfate-attack phenomena, despite the increase in porosity. Overall, the mixes complied with the regulatory requirements for use in aggressive environments, although the amounts of fibers and GGBFS should be carefully studied.
Spanish Ministry of Universities within the framework of the State Program for the Promotion of Talent and its Employability in R + D + i, State Mobility Subprogram, of the State Plan for Scientific and Technical Research and Innovation 2017-2020 [PRX21/00007]; the Spanish Ministry of Universities, MICINN, AEI, EU and ERDF [grant numbers PID2020-113837RB-I00; 10.13039/501100011033; FPU17/03374]; the Junta de Castilla y León (Regional Government) and ERDF [grant numbers UIC-231; BU119P17]; Youth Employment Initiative (JCyL) and ESF [grant number UBU05B_1274]; and finally, to the University of Burgos [grant numbers SUCONS, Y135.GI] and the University of Padova.
eng
Elsevier
Construction and Building Materials. 2022, V. 320, 126280
https://doi.org/10.1016/j.conbuildmat.2021.126280
info:eu-repo/grantAgreement/MIU//PRX21%2F00007
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113837RB-I00/ES/ESTUDIO A ESCALA REAL DE HORMIGONES SOSTENIBLES, HIDRAULICOS Y BITUMINOSOS, DE ALTAS PRESTACIONES, FABRICADOS CON RESIDUOS SIDERURGICOS Y DE CONSTRUCCION
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//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/Junta de Castilla y León//UBU05B_1274
info:eu-repo/grantAgreement/UBU//Y135.GI
Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
Ground granulated blast furnace slag
Electric arc furnace slag
Fiber-reinforced self-compacting concrete
Core drilling
Real strength development
Durability performance
External aggressive agents
Materiales de construcción
Building materials
Validation of slag-binder fiber-reinforced self-compacting concrete with slag aggregate under field conditions: Durability and real strength development
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Construction and Building Materials
320
126280
THUMBNAIL
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oai:riubu.ubu.es:10259/6389
2022-12-02 13:34:25.929
Repositorio Institucional de la Universidad de Burgos
bubrep@ubu.es
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