Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts
A new design methodology for self-compacting flexible fiber-reinforced concrete (SCFFRC) based on rheological criteria, specifically the plastic viscosity of the suspension, is developed. Firstly, the effect that the flexible fiber produces on the plastic viscosity in Newtonian suspensions is studie...
| Authors: | ; |
|---|---|
| Format: | Article |
| Publication date: | 2025 |
| Country: | España |
| Institution: | Universidad de Castilla-La Mancha |
| Repository: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/47360 |
| Online Access: | https://doi.org/10.1016/j.conbuildmat.2025.144839 https://hdl.handle.net/10578/47360 |
| Access Level: | Open access |
| Keyword: | Self-compacting flexible-fiber reinforced concrete (SCFFRC) Mix proportioning Plastic viscosity Rheology Micromechanical model |
| _version_ | 1878742369080180737 |
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| author | Ruiz López, Gonzalo Francisco |
| author2 | Rosa Velasco, Ángel de la |
| author2_role | author |
| author_browse | Rosa Velasco, Ángel de la Ruiz López, Gonzalo Francisco |
| author_facet | Ruiz López, Gonzalo Francisco Rosa Velasco, Ángel de la |
| author_role | author |
| collection | RUIdeRA. Repositorio Institucional de la UCLM |
| description | A new design methodology for self-compacting flexible fiber-reinforced concrete (SCFFRC) based on rheological criteria, specifically the plastic viscosity of the suspension, is developed. Firstly, the effect that the flexible fiber produces on the plastic viscosity in Newtonian suspensions is studied. Next, an equation for the calculation of the plastic viscosity in cementitious suspensions reinforced with flexible fibers is presented. Starting from the basis that the rheological behavior of the suspension differs between rigid and flexible fibers, a micromechanical model is developed. This model allows determining the dosage of self-compacting flexible fiber-reinforced concrete, which is adapted from the one proposed for self-compacting steel fiber-reinforced concrete (De La Rosa et al., 2018). The model predicts the behavior of the material based on the geometric and mechanical characteristics of the fiber (aspect ratio and modulus of elasticity), the rheological properties of the cementitious matrix in which they are suspended, and the shear rate of the process. Finally, the results of the characterization of several reinforced concrete with different types of flexible fibers are shown according to the design methodology developed. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | ES_f4af051ab5fbfdb5f0ecea15b3a9fdfd |
| institution | Universidad de Castilla-La Mancha |
| instname_str | Universidad de Castilla-La Mancha |
| network_acronym_str | ES |
| network_name_str | España |
| oai_identifier_str | oai:ruidera.uclm.es:10578/47360 |
| publishDate | 2025 |
| publishDateSort | 2025 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| reponame_str | RUIdeRA. Repositorio Institucional de la UCLM |
| spelling | Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts Ruiz López, Gonzalo Francisco Rosa Velasco, Ángel de la Self-compacting flexible-fiber reinforced concrete (SCFFRC) Mix proportioning Plastic viscosity Rheology Micromechanical model A new design methodology for self-compacting flexible fiber-reinforced concrete (SCFFRC) based on rheological criteria, specifically the plastic viscosity of the suspension, is developed. Firstly, the effect that the flexible fiber produces on the plastic viscosity in Newtonian suspensions is studied. Next, an equation for the calculation of the plastic viscosity in cementitious suspensions reinforced with flexible fibers is presented. Starting from the basis that the rheological behavior of the suspension differs between rigid and flexible fibers, a micromechanical model is developed. This model allows determining the dosage of self-compacting flexible fiber-reinforced concrete, which is adapted from the one proposed for self-compacting steel fiber-reinforced concrete (De La Rosa et al., 2018). The model predicts the behavior of the material based on the geometric and mechanical characteristics of the fiber (aspect ratio and modulus of elasticity), the rheological properties of the cementitious matrix in which they are suspended, and the shear rate of the process. Finally, the results of the characterization of several reinforced concrete with different types of flexible fibers are shown according to the design methodology developed. Elsevier https://doi.org/10.1016/j.conbuildmat.2025.144839 https://hdl.handle.net/10578/47360 |
| spellingShingle | Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts Ruiz López, Gonzalo Francisco Self-compacting flexible-fiber reinforced concrete (SCFFRC) Mix proportioning Plastic viscosity Rheology Micromechanical model |
| title | Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts |
| title_full | Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts |
| title_fullStr | Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts |
| title_full_unstemmed | Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts |
| title_short | Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts |
| title_sort | Mix design methodology for self-compacting flexible-fiber reinforced concrete based on rheological and mechanical concepts |
| topic | Self-compacting flexible-fiber reinforced concrete (SCFFRC) Mix proportioning Plastic viscosity Rheology Micromechanical model |
| topic_facet | Self-compacting flexible-fiber reinforced concrete (SCFFRC) Mix proportioning Plastic viscosity Rheology Micromechanical model |
| url | https://doi.org/10.1016/j.conbuildmat.2025.144839 https://hdl.handle.net/10578/47360 |