2024 Volume 80 Issue 21 Article ID: 24-21015
The effects of cement and asphalt emulsion on the undrained shear strength of mixtures were investigated in triaxial tests. The results showed that cement contributed to an increase in the maximum axial differential stress qmax and the coefficient of deformation E50, while asphalt emulsion had a significant effect on the residual strength ratio Rsr, which is the axial differential stress q15% at 15% axial strain divided by the maximum axial differential stress qmax . For both asphalt emulsion-cement and asphalt emulsion-only mixtures, the residual strength ratio Rsr increased as the amount of asphalt emulsion added increased. Furthermore, as for the strength constants, the adhesion force c′ increased and the internal friction angle φ′ decreased with increasing amount of asphalt emulsion in the asphalt emulsion-cement mixture, while no clear change in strength constants was observed in the asphalt emulsion-only mixture.
