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Advances in Materials Science and Engineering
Volume 2014 (2014), Article ID 503850, 18 pages
Research Article

Estimation of the Pumping Pressure from Concrete Composition Based on the Identified Tribological Parameters

Laboratory L2MGC (4114), University of Cergy Pontoise, 9500 Cergy Pontoise, France

Received 4 June 2014; Revised 6 October 2014; Accepted 6 October 2014; Published 23 November 2014

Academic Editor: Luigi Nicolais

Copyright © 2014 Chanh-Trung Mai et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


A new method is proposed to estimate pumping pressure based on concrete composition without experimental measurements. Previous studies show that the pumping pressure depends on the interface friction between concrete and the wall of the pumping pipes. This friction is determined by the thickness and the rheology of the boundary layer formed at the interface. The latter is mainly formed by water, cement, and fine sand particles which come from concrete. Hence, interface parameters, which are the viscous constant and the interface yield stress, are directly related to concrete composition. In this work, at the first time the interface yield stress model is suggested and validated thanks to an experimental database also carried out in this study with a precision of around 13%. Then, the pressure estimation method is proposed using the two models to calculate the interface parameters. The validation of the method is carried out basing on the comparison with real measurements on the building site. This method enables the calculation of the pumping pressure with a precision of around 15%.