Investigation of the Characteristic Properties of Lignin-Modified Bitumen

The main objective of this study was to investigate the characteristic properties lignin-modified bitumen with different lignin contents. first step characterization physicochemical and thermal kraft powder along determination its microstructure. This achieved by carrying out an elemental analysis, Gel Permeation Chromatography (GPC), Thermogravimetric Analysis (TGA)/Derivative Thermogravimetry (DTG), Fourier Transformation Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), Dynamic Light Scattering (DLS) Confocal Microscopy. After latter tests, three (3) blends contents (5%, 10% 15% weight bitumen) were produced. Characteristic such as penetration, softening point, elastic recovery, force ductility, dynamic viscosity storage stability determined for reference blends. conclusion that hardens conventional bitumen. Specifically, addition hardened blend a degree changed category from 50/70 35/50 respect EN 12591.