Effect of emulsified asphalt on dynamic viscoelastic of CA mortar.

In order to study viscoelastic of CA mortar under alternating loads, this paper analyzed the influence of temperature, lek cement ratio (A/C), water-cement ratio (W/C) and sand-cement ratio (S/C) on storage modulus, loss modulus and loss factor of CA mortar through experiments. The results showed that the higher the temperature, the lower the storage modulus, and the greater the loss factor, with increasing temperature, loss modulus showed a trend of first increases and then decreases, when the temperature was at 10 °C loss modulus reaches a maximum value, with the A/C is increased, the storage modulus gradually decreases, the loss factor gradually increases, while the loss modulus variation with A/C related the selected temperature range; compared to the cationic emulsified asphalt, when chose anionic emulsified asphalt, the CA mortar has a higher stiffness and better energy absorption damping capacity. The effect of W/C and S/C on the dynamic viscoelastic properties of the mortar is closely related to A/C size. [ABSTRACT FROM AUTHOR]