Preparation, Structural Characterization and Evaluation of Some Dynamic and Rheological Properties of a New Type of Clay Containing Mastic Material, Clay-Mastic

This study focused on the preparation, structural characterization and evaluation of some dynamic rheological properties a new type mastic material, clay-mastic, which consists bituminous binders mixed with mineral fillers. For this purpose, samples were prepared by mixing conventional bitumen (50/70) organo-montmorillonite (OMMT) in various proportions. X-ray powder diffraction (XRD) spectra scanning electron microscope (SEM) high-resolution transmission (HRTEM) images raw clay (MMT), organo-clay mastics taken, changes crystallographic its dispersion characteristics matrix as well morphological investigated comparatively. In addition, penetration, softening point, flash viscosity, shear rheometer (DSR) Fraass breaking point tests carried out together those base order to evaluate terms dynamics rheology. A comparison indicated delamination based surface modification layers belonging organo-clay, diffractograms showed that characteristic smectite peak Montmorillonite shifted left gradually an increasing ratio. shows due successful lyophilic surface, effective intercalated even exfoliated can occur. The penetration viscosity number (PVN) values, defined function index (PI) found be within well-accepted thermal stability range for all samples. reason, it was concluded sensitivity temperature decreased addition thus providing applicability wider range. values increased, respectively, ratio, meaning lead increase crack resistance at low temperatures decrease their permeability.