The 22nd COTA International Conference of Transportation Professionals (CICTP 2022)

This study aimed to investigate the foaming characteristics and technical properties of Aspha-min zeolite foaming asphalt mortar. Firstly, the foaming characteristics of Aspha-min zeolite foaming asphalt mortar were analyzed based on the image analysis method. Then, the Brookfield viscometer test and the temperature scanning test were conducted to investigate the viscoelastic properties of Aspha-min zeolite foaming asphalt mortar. Finally, the high-temperature performance of Aspha-min zeolite foaming asphalt mortar were studied through the multi-stress repetitive creep recovery test. The study shows that the foaming temperature and foaming time significantly impact the foaming characteristics of Aspha-min zeolite foaming asphalt mortar. The Brookfield viscosity and complex modulus of Aspha-min zeolite foaming asphalt mortar show a gradual increase with the increase of Aspha-min dosage. On the contrary, the irrecoverable creep flexibility Jnr3.2 shows a gradually decreasing trend. However, the increase of Aspha-min dosage did not have a significant effect on the phase angle.

Aspha-min zeolite foaming asphalt mortar; Foaming characteristics; Mechanical properties; Rheological properties, Prediction equation