The Particle-Matrix model: limitations and further improvements needed

Rolands Cepuritis, Stefan Jacobsen, Jon Spangenberg

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Abstract

According to the Particle-Matrix Model (PMM) philosophy, the workability of concrete dependson the properties of two phases and the volumetric ratio between them: the fluid matrix phase (≤0.125 mm) and the solid particle phase (> 0.125 mm). The model has been successfully appliedto predict concrete workability for different types of concrete, but has also indicated that somepotential cases exist when its application is limited. The paper presents recent studies onimproving the method by analysing how the PMM one-point flow parameter λQ can beexpressed by rheological models (Bingham and Herschel-Bulkley).
Original languageEnglish
Publication date2017
Number of pages4
Publication statusPublished - 2017
EventNordic Concrete Research Symposium 2017 - Aalborg, Denmark
Duration: 20 Aug 201723 Aug 2017

Conference

ConferenceNordic Concrete Research Symposium 2017
Country/TerritoryDenmark
CityAalborg
Period20/08/201723/08/2017

Keywords

  • Rheology
  • Matrix
  • FlowCyl
  • Yield stress
  • Plastic viscosity

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