COMPRESSIVE STRENGTH PREDICTION OF HIGH PERFORMANCE CONCRETES

摘要

In the present study, we will try to propose a new model for predicting the compressive strength of high performance concretes containing silicate fume in order to be able to better understand the mechanical behaviour of this material and to reduce the number of the experimental tests necessary at the time of its formulation. Modelling was made by adaptation of the Bolomey model of resistance whist being based on the mechanical resistances at concrete ages of 7, 28, 90 and 270 days and that having a W/C ratio equal to 0.25, 0.30, 0.35, 0.40 and Fs/C ratio equal to 0, 0.1, 0.2, 0.3 and 0.4 respectively and on other results extracted from the literature. The results of this research show that we can adopt this model for high performance concretes by introducing a function p(Fs) which takes account of the pozzolans activity of the silicate fume.