Shear strength assessment of reinforced concrete components containing EAF steel slag aggregates
| Autor: | Vanesa Ortega-López, J.M. Romera, Víctor Revilla-Cuesta, Ignacio Marcos, Amaia Santamaría |
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| Rok vydání: | 2022 |
| Předmět: |
Materials science
Sustainable binder Ensayos (Tecnología) Testing Building and Construction Reinforced concrete Shear strength tests Mechanics of Materials Architecture Self-compacting concrete Building materials Shear strength Electric arc furnace slag Fiber-reinforced mixes Materiales de construcción Composite material Strut-tie model Safety Risk Reliability and Quality Civil and Structural Engineering |
| Zdroj: | Repositorio Institucional de la Universidad de Burgos (RIUBU) instname |
| Popis: | Electric Arc Furnace (EAF) slag can be reused as aggregate in Portland cement concrete mixes. The addition of EAFS and other waste co-products (fly ash, blast furnace slag) will modify the binding properties and will, importantly, enhance the global sustainability of such concretes. These mix designs offer acceptable pumpability and self-compaction in the fresh state and can be reinforced with fibers. In this study, eight different concrete mixes are designed within the range of medium-strength concretes (30–50 MPa) and are characterized in both the fresh and the hardened state. Large concrete volumes are used to pour reinforced beams, which are then subjected to small-span high-load tests to evaluate their resistance to shear stress, by analyzing two types of transversal (shear) reinforcement. The tests yielded promising results, contributing additional evidence on the viability of using recycled EAFS aggregate in structural applications. The mechanical behavior of these concretes was closely correlated with the strength predictions calculated with the formulas listed in various international standards. Spanish Ministry of Universities, MICINN, AEI, EU and ERDF [PID2020-113837RB-I00; RTI2018-097079-B-C31; 10.13039/501100011033; FPU17/03374]; the Junta de Castilla y León and ERDF [UIC-231, BU119P17]; Youth Employment Initiative (JCyL) and ESF [UBU05B_1274]; the University of Burgos [grant number SUCONS, Y135.GI], and, finally, our thanks also go to the SAREN research group (IT1619-22, Basque Government). |
| Databáze: | OpenAIRE |
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