Experimental study about the effects of granular skeleton distribution on the mechanical properties of self-compacting concrete (SCC)
In recent years, the use of self-compacting concrete (SCC) has been increasing. Although methods for designing the mixture proportions usually derive from experience with conventional concretes, some specific procedures still are not universally accepted. The design and characterization of SCC influ...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/27609 |
| Acceso en línea: | https://hdl.handle.net/2117/27609 https://dx.doi.org/10.1016/j.conbuildmat.2015.01.006 |
| Access Level: | acceso abierto |
| Palabra clave: | Self-consolidating concrete Self-compacting concrete Granular skeleton distribution Concrete rheology Workability Compressive strength Modulus of elasticity Tensile strength Bond strength STRENGTH DESIGN MIX Formigó autocompactant Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó |
| Sumario: | In recent years, the use of self-compacting concrete (SCC) has been increasing. Although methods for designing the mixture proportions usually derive from experience with conventional concretes, some specific procedures still are not universally accepted. The design and characterization of SCC influences not only the mix components (paste volume and nature, binder amount and type, granular skeleton, etc.) but also the testing methods used to validate the self-compactability (usually in terms of rheology, fluidity, viscosity and resistance to segregation). This paper studies the influence on SCC mechanical properties based on the consideration of two types of granular skeleton, discontinuous and continuous, for different strength levels (35 and 60 MPa). For the both strength levels studied, the mix with continuous granular skeleton exhibited slightly higher segregation resistance and mechanical properties than did mixes with discontinuous granular skeleton. (C) 2015 Elsevier Ltd. All rights reserved. |
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