ASFALT BETONUNDA RİJİTLİK MODÜLÜNÜN BELİRLENMESİ İÇİN BİR YAKLAŞIM AN APPROACH for DETERMINING the STIFFNESS MODULUS on ASPHALT CONCRETE

In this study, stiffness modulus parameters of asphalt concrete were determined experimentally for different temperature and exposure times. The stiffness modules were calculated according to Nijboer stiffness module. Basic physical properties and the quantity of bitumen of asphalt core samples were designated for determining the stiffness modules. The samples were exposed to 17 C (reference temperature), 30, 40 and 50 C temperatures for 1.5, 3, 4.5 and 6 hours and then Marhall Stability test were done for each samples. By using the test results a prediction model with Sugeno type based on the adaptive neuron-fuzzy inference system was alternatively developed to calculate the stiffness modules of asphalt core samples. As a result, it was seen that the developed prediction model could be used as a prediction model for unperformed situations which aren’t suitable for experiments.