Assessment of Asphalt Rheological Behaviors by Studying Their Aromatic Structures

Autor:	N. Peeri, L. Quoniam, L. Germanaud, J. Kister, J. P. Planche
Rok vydání:	1996
Předmět:	Polymers and Plastics Rheology Chemical engineering Asphalt Chemistry Organic Chemistry Condensation Principal component analysis Materials Chemistry Analytical chemistry Electrophilic aromatic substitution Absorption (chemistry) Fourier transform infrared spectroscopy
Zdroj:	Polycyclic Aromatic Compounds. 9:29-36
ISSN:	1563-5333 1040-6638
DOI:	10.1080/10406639608031198
Popis:	Assessment of asphalt rheological behaviors during road service life requires to better know original asphalt chemical structures responsible of its main mechanical features. For this purpose, the nature of the asphalt chemical structures were characterized by using Fourier transformed Infrared (FTIR) and Synchronous UV Fluorescence (SF) spectroscopies. Indices based on the ratios of some FTIR absorption bands were established to evaluate aromatic and aliphatic structure contents of 10 asphalt cements. For instance, valuable information about aromatic families was obtained from SF indices which were related to FTIR indices. Relationships between these structural characteristics and the rheological properties were evaluated using Principal Component Analysis and Multivariate Linear Regression. As a result, bitumen rheological properties, at low or at high temperature, were found to greatly depend on the aromatic substitution and condensation degree, the aliphatic/ aromatic structure ratio and the ...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::04b3e145acaa6dbd2a55c71ade277a24 https://doi.org/10.1080/10406639608031198 Zobrazit plný text záznamu