Prediction of Fresh Concrete Flow Behavior Based on Analytical Model for Mixture Proportioning

The appearance and extensive use of new types of concretes in a variety of applications gave an impetus to the development and implementation of the rheological approach to depiction of fresh mixes. This article presents the results from evaluation of concrete rheology on a series of concrete mixtures by a newly developed tube viscometer, the RCVC. The comparison of the rheological quantity involved in the analytical model for mix proportioning suggested by the author with a measurable experimental parameter is introduced, as well as a discussion of some relationships obtained by other authors. The discussion presents a comparison between the model calculated apparent viscosity and the measured plastic viscosity of fresh mixes as a function of volume fraction of solids, normalized with respect to their maximum packing values. The author concludes that although the results are encouraging, still more work needs to be done in order to ensure a well-deserved place of the rheology in contemporary concrete industry.


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  • Accession Number: 01001084
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 23 2005 12:40PM