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

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