An In-Depth Investigation into the Physicochemical, Thermal, Microstructural, and Rheological Properties of Petroleum and Natural AsphaltsReport as inadecuate


An In-Depth Investigation into the Physicochemical, Thermal, Microstructural, and Rheological Properties of Petroleum and Natural Asphalts


An In-Depth Investigation into the Physicochemical, Thermal, Microstructural, and Rheological Properties of Petroleum and Natural Asphalts - Download this document for free, or read online. Document in PDF available to download.

1

Department of Energy, Materials, and Chemical Engineering, Korea University of Technology and Education, 1600 Chungjeol-ro, Byeongcheon-myeon, Dongnam-gu, Cheonan-City, Chungnam-Province 330-708, Korea

2

Department of Architectural Engineering, Korea University of Technology and Education, 1600 Chungjeol-ro, Byeongcheon-myeon, Dongnam-gu, Cheonan-City, Chungnam-Province 330-708, Korea





*

Author to whom correspondence should be addressed.



Academic Editor: Marco Morreale

Abstract Over the last decade, unexpected and sudden pavement failures have occurred in several provinces in South Korea. Some of these failures remain unexplained, further illustrating the gaps in our knowledge about binder chemistry. To prevent premature pavement distress and enhance road performance, it is imperative to provide an adequate characterization of asphalt. For this purpose, the current research aims at inspecting the chemistry, microstructure, thermal, and physico-rheological properties of two types of asphalt, namely petroleum asphalt PA and natural asphalt NA. The binders were extensively investigated by using elemental analysis, thin-layer chromatography with flame ionization detection TLC-FID, matrix-assisted laser desorption ionization time-of-fight mass spectroscopy MALDI-TOF-MS, Fourier transform infrared spectroscopy FT-IR, Raman spectroscopy RS, Nuclear magnetic resonance spectroscopy 1H-NMR, ultraviolet and visible spectroscopy UV-VIS, X-ray diffraction XRD, scanning electron microscopy SEM, thermogravimetric analysis TGA, differential scanning calorimetry DSC, penetration, softening point, ductility, and viscosity tests. The findings of this research have revealed the distinct variations between the chemical compositions, microstructures, and thermo-rheological properties of the two asphalts and provided valuable knowledge into the characteristics of the binders. Such insight has been effective in predicting the performance or distress of road pavement. This paper will, therefore, be of immediate interest to materials engineers in state highway agencies and asphalt industries. View Full-Text

Keywords: petroleum asphalt; natural asphalt; chemical compositions; microstructures; thermo-analytical behaviors; physico-rheological properties petroleum asphalt; natural asphalt; chemical compositions; microstructures; thermo-analytical behaviors; physico-rheological properties





Author: Nader Nciri 1, Jeonghyun Kim 2, Namho Kim 2 and Namjun Cho 1,*

Source: http://mdpi.com/



DOWNLOAD PDF




Related documents