Optimizing constituent ranges in self-compacting steel-fiber reinforced concrete: A methodological approach
This paper presents a refined methodology for the design of self-compacting steel-fiber reinforced concrete (SCSFRC), building upon our previous work [Construction and Building Materials 189 (2018) 409–419]. The approach combines rheological modeling and micromechanical principles to ensure fluidity...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2025 |
| País: | España |
| Institución: | Universidad de Sevilla (US) |
| Repositorio: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/174293 |
| Acceso en línea: | https://hdl.handle.net/11441/174293 https://doi.org/10.1016/j.conbuildmat.2025.141434 |
| Access Level: | acceso abierto |
| Palabra clave: | Self-compacting steel-fiber reinforced concrete (SCSFRC) Constituents ranges in SCSFRC Mix design Rheology Mechanical performance Performance-based design |
| Sumario: | This paper presents a refined methodology for the design of self-compacting steel-fiber reinforced concrete (SCSFRC), building upon our previous work [Construction and Building Materials 189 (2018) 409–419]. The approach combines rheological modeling and micromechanical principles to ensure fluidity, stability, and mechanical performance. Specifically, it incorporates a phase-wise application of the Krieger–Dougherty equation, the theory of excess layer thickness, and the concept of total relative packing fraction. A total of 25 SCSFRC mixtures were specifically designed, produced, and tested to explore a wide range of rheological and mechanical conditions. From this experimental campaign, optimal ranges for the main constituent materials are identified. These ranges offer a valuable reference for mix designers, independently of whether the proposed methodology is applied. The framework contributes to a more rational and consistent design of SCSFRC, particularly with hooked steel fibers, and supports industrial practice by enabling more precise, performance-oriented concrete formulations with reduced reliance on empirical trial-and-error. |
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