Development of an atomistic-based chemophysical environment for modelling asphalt oxidation

2012 ◽  
Vol 97 (11) ◽  
pp. 2331-2339 ◽  
Author(s):  
Pan Tongyan ◽  
Lu Yang ◽  
Wang Zhaoyang
Keyword(s):  
Asphalt Oxidation

Kinetics of epoxy-asphalt oxidation

2020 ◽  
pp. 398-401
Author(s):  
Panos Apostolidis ◽  
Xueyan Liu ◽  
Sandra Erkens ◽  
Athanasios Scarpas
Keyword(s):  
Epoxy Asphalt ◽  
Asphalt Oxidation ◽  
Kinetics Of

The effect of carbon-arc intensity on asphalt oxidation

2007 ◽  
Vol 14 (1) ◽  
pp. 30-35 ◽  
Author(s):  
J. R. Wright ◽  
P. G. Gampbell ◽  
T. L. Fridinger
Keyword(s):  
Carbon Arc ◽  
Asphalt Oxidation

OXIDATION KINETICS OF ASPHALT CORBETT FRACTIONS AND COMPOSITIONAL DEPENDENCE OF ASPHALT OXIDATION

1998 ◽  
Vol 16 (7-8) ◽  
pp. 827-850 ◽  
Author(s):  
M.M. Liu ◽  
M.S. Lin ◽  
J.M. Chaffin ◽  
R.R. Davison ◽  
C.J. Glover ◽  
...  
Keyword(s):  
Oxidation Kinetics ◽  
Compositional Dependence ◽  
Asphalt Oxidation ◽  
Kinetics Of

Structure of the bubble layer in an asphalt oxidation tower

2006 ◽  
Vol 42 (2) ◽  
pp. 109-112
Author(s):  
I. B. Grudnikov ◽  
Yu. I. Grudnikova
Keyword(s):  
Oxidation Tower ◽  
Bubble Layer ◽  
Asphalt Oxidation

THE INFLUENCE OF METAL-CONTAINING COMPOUNDS ON ENHANCEMENT AND INHIBITION OF ASPHALT OXIDATION

1996 ◽  
Vol 14 (8) ◽  
pp. 1143-1159 ◽  
Author(s):  
Lars S. Johansson ◽  
Jan F. Branthaver ◽  
Raymond E. Robertson
Keyword(s):  
Asphalt Oxidation

THE EFFECT OF METALLOPORPHYRINS ON ASPHALT OXIDATION. I. EFFECT OF SYNTHETIC METAL CHELATES

1983 ◽  
Vol 1 (4) ◽  
pp. 355-369 ◽  
Author(s):  
J. F. Branthaver ◽  
Muhammed Nazir ◽  
J. C. Petersen ◽  
S. M. Dorrence
Keyword(s):  
Metal Chelates ◽  
Synthetic Metal ◽  
Asphalt Oxidation

Modeling Asphalt Oxidation in Pavement With Field Validation

2013 ◽  
Vol 31 (13) ◽  
pp. 1398-1405 ◽  
Author(s):  
X. Jin ◽  
Y. Cui ◽  
C. J. Glover
Keyword(s):  
Field Validation ◽  
Asphalt Oxidation

Analysis of Asphalt Oxidation by Means of Accelerated Testing and Environmental Conditions

2018 ◽  
Vol 2672 (28) ◽  
pp. 244-255 ◽  
Author(s):  
Rafael E. Villegas-Villegas ◽  
Alejandra Baldi-Sevilla ◽  
José Pablo Aguiar-Moya ◽  
Luis Loria-Salazar
Keyword(s):  
Mechanical Response ◽  
Chemical Species ◽  
Accelerated Testing ◽  
Elastic Response ◽  
Pavement Performance ◽  
Specific Chemical ◽  
Environmental Process ◽  
Asphalt Oxidation ◽  
Ultraviolet Aging

The chemical changes that occur to asphalt with oxidation include an increase in oxygen content, as well as the unsaturation of the molecules. This change raises the polarity and stiffness of the material. As a consequence, the elastic response increases, altering its rheology. These transformations are essential to determine pavement performance during its service life. However, the characterization of these chemical and rheological processes cannot be completed because of the inefficiency of current procedures that simulate asphalt oxidation. For this reason, the objective of this study is to characterize asphalt oxidation fundamentally and to relate the observed changes in the materials’ mechanical response. To achieve this goal, a representative group of asphalt samples has been exposed to environmental oxidation, and alternatively to thermal and ultraviolet aging in the laboratory. The samples were characterized chemically and rheologically before the start of the experiment. It was possible to find a correlation between the content of specific chemical species in the material and their mechanical behavior at low and intermediate temperatures. In addition, the present study helps to understand the oxidation phenomena, and helps verify the ineffectiveness of traditional aging techniques, so that they can be modified to simulate the environmental process better.

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