Interlaboratory study on rheological properties of cement pastes and reference substances: comparability of measurements performed with different rheometers and measurement geometries
| Autor: | Joachim Jürgen Riedmiller, Mareike Thiedeitz, Shirin Fataei, Hans-W. Krauss, Tabea von Bronk, Manfred Wilhelm, Inga Hauschildt, Steffen Jesinghausen, Irina Ivanova, Viktor Mechtcherine, Sebastian Pawelczyk, Dietmar Stephan, Christian Baumert, O. Mazanec, Christoph Gehlen, Christopher O. Klein, Sarah Leinitz, Egor Secrieru, Dario Cotardo, Ludger Lohaus, Michael Haist, Nonkululeko W. Radebe, Hans-Joachim Schmid, Dirk Lowke, Ursula Pott, Wolfram Schmidt, Mahmoud Eslami Pirharati, Julian Link, David Nicia, Harald Garrecht |
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| Rok vydání: | 2020 |
| Předmět: |
plastic viscosity
geometry Materials science ultrasonics Rheometer rheological property 0211 other engineering and technologies 02 engineering and technology rheological measurements Cement paste reference substance interlaboratory studies Plastic viscosity reproducibilities Viscosity ddc:690 Rheology 021105 building & construction General Materials Science Buildings Composite material rheometers Civil and Structural Engineering Cement Reproducibility Rheometry Comparability Building and Construction measurement geometry 021001 nanoscience & nanotechnology cements ddc yield stress Interlaboratory test measurement setup Mechanics of Materials Test setup Dewey Decimal Classification::600 | Technik::690 | Hausbau Bauhandwerk viscosity rheology Testing procedure Ultrasound gel 0210 nano-technology |
| Zdroj: | Materials and structures, 53 (4), Art. Nr.: 92 Materials and Structures 53 (2020), Nr. 4 |
| ISSN: | 1871-6873 1359-5997 0025-5432 |
| DOI: | 10.1617/s11527-020-01477-w |
| Popis: | This paper presents the results of an interlaboratory study of the rheological properties of cement paste and ultrasound gel as reference substance. The goal was to quantify the comparability and reproducibility of measurements of the Bingham parameters yield stress and plastic viscosity when measured on one specific paste composition and one particular ultrasound gel in different laboratories using different rheometers and measurement geometries. The procedures for both in preparing the cement paste and carrying out the rheological measurements on cement paste and ultrasound gel were carefully defined for all of the study’s participants. Different conversion schemes for comparing the results obtained with the different measurement setups are presented here and critically discussed. The procedure proposed in this paper ensured a reasonable comparability of the results with a coefficient of variation for the yield stress of 27% and for the plastic viscosity of 24%, despite the individual measurement series’ having been performed in different labs with different rheometers and measurement geometries. Deutsche Forschungsgemeinschaft Projekt DEAL |
| Databáze: | OpenAIRE |
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