Searching effective indicators of microstructural changes in bitumens during aging: A multi-technique approach
Caputo P. Ventruti G. Calandra P. Porto M. Teltayev B. Angelico R. Oliviero Rossi C.
20 May 2022Elsevier B.V.
Colloids and Surfaces A: Physicochemical and Engineering Aspects
2022#641
A study on the effect of artificial aging process applied to asphalt binders characterized by different degrees of penetration was carried out by performing rheological characterization, thermal analysis by means of differential scanning calorimetry and optical microscopy, X-Ray powder diffraction, FT-IR and Raman spectroscopy. The microstructural information such as dimension of unit cell (crystalline parameters) layer diameter, inter-layer distance, height of the unit cell, and the aromaticity were calculated and compared between unaged and aged asphaltenes. The parameter that quantifies the aromaticity proved to be a good indicator of the extent of aging to which the bituminous materials under study were subjected. It turned out that more rigid bitumens possess more polar fractions which can be oxidized by aging, therefore bringing to a more pronounced increase in rigidity upon aging.
Aging , Asphaltene fraction , Bitumen , Differential Scanning Calorimetry (DSC) , Melting point , Raman spectroscopy , Rheometry , X-ray Powder Diffraction (XRPD)
Text of the article Перейти на текст статьи
Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, Cubo 14D, Rende, 87036, Italy
Department of Earth and Geoenvironmental Sciences, University of Bari, Via Orabona, 4, I-70125, Bari, Italy
CNR-ISMN, National Research Council – Institute for the Study of Nanostructured Materials, Via Salaria km 29.300, RM, Monterotondo Stazione, 00015, Italy
Kazakhstan Highway Research Institute (KazdorNII), Nurpeisov St. 2a, Almaty, 050061, Kazakhstan
Department of Agricultural, Environmental and Food Sciences (DIAAA), University of Molise, Via De Sanctis, CB, Campobasso, 86100, Italy
Department of Chemistry and Chemical Technologies
Department of Earth and Geoenvironmental Sciences
CNR-ISMN
Kazakhstan Highway Research Institute (KazdorNII)
Department of Agricultural
10 лет помогаем публиковать статьи Международный издатель
Книга Публикация научной статьи Волощук 2026 Book Publication of a scientific article 2026