Structural comparison of Gilsonite and Trinidad Lake Asphalt using 13C-NMR technique

2nd International Conference on Mining, Material and Metallurgical Engineering

矿业工程;材料科学;冶金学

Nciri, Nader^1 ; Cho, Namjun^1

School 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, Republic of^1

关键词: Aromatic ring structure;    Carbon-13 NMR spectroscopy;    Natural asphalts;    Ring substituents;    Structural comparison;    Structure and properties;    Trinidad lake asphalts;    Valuable chemicals;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/191/1/012042/pdf
DOI  :  10.1088/1757-899X/191/1/012042

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The recent increased importance of natural asphalt as an alternative binder for sustainable road pavement has dictated that more knowledge should be acquired about its structure and properties. Earlier, Carbon-13 NMR spectroscopy has been applied to very few natural bituminous materials. In this work, two types of raw binders namely Gilsonite and Trinidad Lake asphalt (TLA) have been subjected to an extensive investigation by using13C-NMR technique. Results have shown that valuable chemical data can be readily withdrawn on aromatic ring structures and ring substituents in natural asphalts derived from different sources. The chemical significance of these findings will be discussed.