CONCRETE STRENGTH PREDICTION BY USING FUZZY LOGIC

Abstract

The paper describes the methodology for the predicted strength determining of compression concrete on the basis of fuzzy logic. A number of the weightiest factors (W/C, cement, fine and coarse withdrawal, compression ratio) which impacts on predicted concrete’s compression strength are proposed. Defuzzification calculation in a mathematical model of strength prediction is performed by center of gravity method. It is shown that the strength forecasting value of a concrete sample obtained by the fuzzy logic method is well correlated with experimental data tests. The relative error for the predicted value of the strength for indicated mixture is 8,62 %.