14th INTERNATIONAL CONGRESS ON ADVANCES IN CIVIL ENGINEERING, İstanbul, Turkey, 6 - 08 September 2021, pp.1393-1399
Nowadays, along with the rapid increasing of traffic volume and axe load, ordinary asphalt pavement has been unable to satisfy the traffic requirements due to serious early failures occuring, such as rutting at high temperature, fatigue and low temperature cracking and aging. Many researchers have modified asphalt by adding different additives at different ratios, in an attempt to improve pavement performance. In this study, a novel tall oil- based boron oxide compound was synthesized chemically in the laboratory conditions. The modification was accomplished by adding a certain amount of additive to the asphalt under certain temperature and mixing conditions. The modification mechanism and microstructure of the blends were characterised by Fourier Transform Infrared Spectrometer (FT-IR) and scanning electron microscope (SEM). Accordindg to test results, the new additive successfully chemically synthesized and provided a good coordination with the asphalt binder.