14th INTERNATIONAL CONGRESS ON ADVANCES IN CIVIL ENGINEERING, İstanbul, Türkiye, 6 - 08 Eylül 2021, ss.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.