Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Robustness of self-compacting recycled concrete: analysis of sensitivity parameters
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1617/s11527-017-1136-1 ; Esta versión del artículo ha sido aceptada para su publicación, después de la revisión por pares (cuando proceda) y está sujeta a las condiciones de uso de AM de Springer Nature, pero no es la Versión del Registro y no refleja las mejoras posteriores a la aceptación, ni ninguna corrección. La versión oficial está disponible en línea en: https://doi.org/10.1617/s11527-017-1136-1 ; [Abstract:] This work is focused on understanding the origin of the lower robustness detected in self-compacting recycled concretes and on identifying the parameters affecting this property to a greater extent. A reference concrete (0%) and three recycled concretes were studied. The replacement percentages of natural with recycled coarse aggregate were 20, 50 and 100% (by volume). Each baseline mix was modified using two levels of water (± W: − 3, + 3%), two levels of superplasticizer (± S: − 5, + 5%) and two levels of cement (± C: − 3, + 3%). The analysis is focused on the sensitivity parameters calculated with the variations of the results of different tests obtained with the modified mixes. Four industrial tests and two rheological tests were made at a mix age of 15 and 45 min. It could be concluded that self-compacting recycled concretes present the “Rheological parameter—∅/∅max” curves with higher slope than the ones of conventional self-compacting concrete. Then, when high percentages of recycled coarse aggregate are used, and when long term self-compacting behaviour is required, there is a greater possibility to reach the high slope region of high slope curves causing high rheological changes and low robustness. ; The study is part of two projects entitled: (a) “Industrial Investigation ...
Robustness of self-compacting recycled concrete: analysis of sensitivity parameters
This version of the article has been accepted for publication, after peer review (when applicable) and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: https://doi.org/10.1617/s11527-017-1136-1 ; Esta versión del artículo ha sido aceptada para su publicación, después de la revisión por pares (cuando proceda) y está sujeta a las condiciones de uso de AM de Springer Nature, pero no es la Versión del Registro y no refleja las mejoras posteriores a la aceptación, ni ninguna corrección. La versión oficial está disponible en línea en: https://doi.org/10.1617/s11527-017-1136-1 ; [Abstract:] This work is focused on understanding the origin of the lower robustness detected in self-compacting recycled concretes and on identifying the parameters affecting this property to a greater extent. A reference concrete (0%) and three recycled concretes were studied. The replacement percentages of natural with recycled coarse aggregate were 20, 50 and 100% (by volume). Each baseline mix was modified using two levels of water (± W: − 3, + 3%), two levels of superplasticizer (± S: − 5, + 5%) and two levels of cement (± C: − 3, + 3%). The analysis is focused on the sensitivity parameters calculated with the variations of the results of different tests obtained with the modified mixes. Four industrial tests and two rheological tests were made at a mix age of 15 and 45 min. It could be concluded that self-compacting recycled concretes present the “Rheological parameter—∅/∅max” curves with higher slope than the ones of conventional self-compacting concrete. Then, when high percentages of recycled coarse aggregate are used, and when long term self-compacting behaviour is required, there is a greater possibility to reach the high slope region of high slope curves causing high rheological changes and low robustness. ; The study is part of two projects entitled: (a) “Industrial Investigation ...
Robustness of self-compacting recycled concrete: analysis of sensitivity parameters
González-Taboada, Iris (Autor:in) / González-Fonteboa, Belén (Autor:in) / Martínez-Abella, Fernando (Autor:in) / Roussel, Nicholas (Autor:in)
01.01.2018
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Robustness of self-compacting recycled concrete: analysis of sensitivity parameters
| Springer Verlag | 2018
Robustness of self-compacting recycled concrete: analysis of sensitivity parameters
| Online Contents | 2018
Evaluation of self-compacting recycled concrete robustness by statistical approach
| British Library Online Contents | 2018
| Europäisches Patentamt | 2023