52. Estimation of Bingham rheological parameters of SCC from slump flow measurement

Title: 52. Estimation of Bingham rheological parameters of SCC from slump flow measurement
Author(s): L.N. Thrane, C. Pade, T. Svensson
Paper category : conference
Book title: 5th International RILEM Symposium on Self-Compacting Concrete
Editor(s): G. De Schutter and V. Boel
Print-ISBN: 978-2-35158-047-9
e-ISBN: 978-2-35158-088-2
Publisher: RILEM Publications SARL
Publication year: 2007
Pages: 353 - 358
Total Pages: 6
Nb references: 9
Language: English

Abstract: Different rheometers yield results of relative poor correlation and are often impractical for use at production plants and job sites. The slump flow test is the most widely used test method for quality control of the flow properties of SCC. However, often only the slump flow is measured because operator dependency and measuring accuracy make it impossible to obtain accurate information on the transient flow of SCC. Performing the traditional slump flow test in an automated manner ensuring identical execution each time combined with simple image analysis has been developed to accurately measure the flow curve i.e. spread versus time. This paper discusses the estimation of the yield stress and plastic viscosity based on an automated slump flow test. The effect of particle size and volume fraction is discussed and the results are compared with measurements in a co-axial rheometer.

Online publication: 2009-06-16
Publication type : full_text
Public price (Euros): 0.00