RT Journal Article
T1 Fiber-reinforcement and its effects on the mechanical properties of high-workability concretes manufactured with slag as aggregate and binder
A1 Ortega-López, Vanesa
A1 García-Llona, Aratz
A1 Revilla-Cuesta, Víctor
A1 Santamaría, Amaia
A1 San-José, José T.
AB 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.
SN 2352-7102
YR 2021
FD 2021-11
LK https://hdl.handle.net/11556/5329
UL https://hdl.handle.net/11556/5329
LA eng
NO Ortega-López , V , García-Llona , A , Revilla-Cuesta , V , Santamaría , A & San-José , J T 2021 , ' Fiber-reinforcement and its effects on the mechanical properties of high-workability concretes manufactured with slag as aggregate and binder ' , Journal of Building Engineering , vol. 43 , 102548 . https://doi.org/10.1016/j.jobe.2021.102548
NO Publisher Copyright: © 2021 Elsevier Ltd
NO The authors wish to express their gratitude to the following entities for having funded this research work: the 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.
DS TECNALIA Publications
RD 27 sept 2024