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Assessment of rheological effects in the binder on the rheology of mortar and concrete

  • In the last years flowable concrete has become increasingly important in applications such as, for systems with highly reinforced concrete with a complicated formwork, or sprayed concrete and 3D-printing of concrete. For all these applications it is necessary to have tailored rheological properties. Rheology can be described by values of yield stress and plastic viscosity, which can be determined for example by evaluation of rheometer measurements. But for different materials various rheometers with different geometries and stirrers are being used. To see the effects from paste in concrete, it is necessary to investigate mixes of paste, mortar and concrete, stepwise. But currently there exists no device, which is calibrated for these different systems at once. Due to this fact, conventional tests such as V-funnel efflux-time and flow diameter were determined, as well as rheometer data in different cell sizes and geometries. In this study the assessment of rheological effects in theIn the last years flowable concrete has become increasingly important in applications such as, for systems with highly reinforced concrete with a complicated formwork, or sprayed concrete and 3D-printing of concrete. For all these applications it is necessary to have tailored rheological properties. Rheology can be described by values of yield stress and plastic viscosity, which can be determined for example by evaluation of rheometer measurements. But for different materials various rheometers with different geometries and stirrers are being used. To see the effects from paste in concrete, it is necessary to investigate mixes of paste, mortar and concrete, stepwise. But currently there exists no device, which is calibrated for these different systems at once. Due to this fact, conventional tests such as V-funnel efflux-time and flow diameter were determined, as well as rheometer data in different cell sizes and geometries. In this study the assessment of rheological effects in the binder on the rheology of mortar and concrete was investigated by using combination of two rheometers.zeige mehrzeige weniger

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  • Sarah Leinitz_Assessment of rheological effects in the binder on the rheology of mortar and concrete_Rheologische Messungen an Baustoffen 2018.pdf
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Metadaten
Autor*innen:Sarah Leinitz, Wolfram SchmidtORCiD, Hans-Carsten KühneORCiD
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Deutsch):Rheologische Messungen an Baustoffen 2018
Jahr der Erstveröffentlichung:2018
Organisationseinheit der BAM:7 Bauwerkssicherheit
7 Bauwerkssicherheit / 7.4 Baustofftechnologie
Verlag:tredition GmbH
Jahrgang/Band:27
Erste Seite:109
Letzte Seite:111
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurbau
Freie Schlagwörter:Cement; Mortar; Rheology; Superplasticizer; Upscaling
Themenfelder/Aktivitätsfelder der BAM:Infrastruktur
Material
Veranstaltung:Rheologische Messungen an Baustoffen 2018, 27. Workshop und Kolloquium
Veranstaltungsort:Regensburg, Germany
Beginndatum der Veranstaltung:07.03.2018
Enddatum der Veranstaltung:08.03.2018
ISBN:978-3-7469-1878-5
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:12.03.2018
Referierte Publikation:Nein
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