The Rheological Behavior about High-Modulus Modified Asphalt

To get a grip on the influence of different factors on rheological properties of high modulus asphalt, the method of DSR measurement is made in a systematic study of different temperatures, loading frequency,strain 70(#) base asphalt and rheological properties of high modulus asphalt. The experimental results show that high-modulus asphalt has a low sensitivity to temperature. Compared with the base asphalt, the high-modulus modified asphalt's G*/sin delta will have a slower decrease under the condition of temperature increase. Both asphalt's G*/sin delta would decrease with the decrease of load frequency, high-modulus asphalt has a higher G*/sin delta than base asphalt especially at the higher temperature and lower frequency.