Correlation Analysis of Binder Stiffness with Deformation Strength and Dynamic Creep Property of Asphalt Mixtures for Evaluation of Kim Test Applicability

This study dealt with correlation analysis of binder stiffness with deformation strength and dynamic creep property of asphalt mixtures for evaluation of applicability of deformation strength . Two aggregates, with maximum size of 13mm and eight binders were used to produce 16 different mixtures. The stiffness of binder was measured using DSR at . Final deformation(FD) and dynamic stability(DS) were measured by dynamic creep (DC) test, and SD was measured by Kim test for each mixture. Results of correlation analysis between , and , m and DS showed that correlation with binder stiffness and deformation strength was the highest $(R^2>0.88)$. There was good correlation between DS, FD with . The results indicated that rut-resistance property of mixture is better reflected in test than FD or DS of dynamic creep test. Therefore, it is concluded that can be possibly used for evaluation of rut resistance of asphalt concretes with a good reliability if the procedure is standardized.