Development of Failure Criterion of Hot Mix Asphalt Using Triaxial Shear Strength Test

Title & Authors
Development of Failure Criterion of Hot Mix Asphalt Using Triaxial Shear Strength Test
Kim, Seong Kyum; Lee, Kwan Ho;

Abstract
In general, Fracture of the material is not occurring of the maximum normal stress or the maximum shear stress failure in the state. Maximum normal stress and maximum shear stress in the state of Critical coupling from being destroyed based on the Mohr-Coulomb theory. Couple of different mixtures, including permeable asphalt pavement, SMA and dense-graded asphalt mixture, were used for compression triaxial test at $\small{45^{\circ}C}$ and $\small{60^{\circ}C}$. Mohr-Coulomb theory to the analysis of compression triaxial test result of the internal friction angle $\small{38.9^{\circ}{\sim}46.9^{\circ}}$ measured somewhat irregularly, but in the case of cohesion, depending on whether the temperature and immersion of the specimen appeared differently. In addition, Indirect tensile test and compression triaxial test of the asphalt mixture to determine the correlation between compression triaxial test results assessed as cohesion and internal friction angle calculated using the theoretical Indirect tensile strength and measured indirectly tensile strength were analyzed. The Measured & Predicted IDT St values tended to be proportional.
Keywords
Triaxial compression;HMA;Indirect tensile strength test (IDT);Mohr-Coulomb;Internal friction angle;Cohesion;
Language
Korean
Cited by
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