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Titre: | Rheological and mechanical optimization of a steel fiber reinforced self-compacting concrete using the design of experiments method |
Auteur(s): | Gueciouera, Djamila Ghernouti, Youcef Naadia, Tarek |
Mots-clés: | Rheology Self-compacting concrete mechanical strength plastic viscosity |
Date de publication: | 2019 |
Editeur: | Taylor & Francis |
Collection/Numéro: | EUROPEAN JOURNAL OF ENVIRONMENTAL AND CIVIL ENGINEERING; |
Résumé: | The purpose of this study is to formulate a steel fibre reinforced selfcompacting
concrete (SFSCC) that has optimal rheological and mechanical
properties, using marble powder as an addition and partial substitution
to cement. The design of experiments method (DOE) was used to
analyse the effect of fibre dosage (%f), paste volume (Vp) and the
gravel/sand ratio (G/S) on the SFSCC. A concrete rheometer is used to
quantify the intrinsic rheological parameters. The rheological results of
the SFSCC show that the flow capacity decreases with increasing fibre
dosage. By against the increase in the volume of the paste (Vp) and the
(G/S) ratio decreases the yield stress to give better performance to flow.
The plastic viscosity is governed exclusively by the volume of the paste.
Mechanical results showed that the volume of the paste has a significant
influence on the flexural strength as well as the compression
strength. Moreover, significant improvement in flexural strength is
recorded when the three parameters (%f, Vp and G/S) increase. Also, the
ductility of SFSCC increases with increasing fibre dosage, while the compressive
strength is little affected by the latter |
URI/URL: | http://dlibrary.univ-boumerdes.dz:8080/handle/123456789/5849 |
ISSN: | 21167214 |
Collection(s) : | Publications Internationales
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