Rheological characteristics of epoxy asphalt binders and engineering properties of epoxy asphalt mixtures - state-of-the-art

The asphalt industry is aiming to produce high-quality materials and efficient technologies for pavement construction. One such technology that attracts attention is epoxy asphalt. This paper discussed the concepts, theories and engineering properties of epoxy asphalt technology and products. As the...

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Bibliographic Details
Published in:Road materials and pavement design 2022-09, Vol.23 (9), p.1957-1980
Main Authors: Jamshidi, Ali, White, Greg, Kurumisawa, Kiyofumi
Format: Article
Language:English
Subjects:
Asphalt mixes
Binders (materials)
fatigue
flexible pavement
Pavement construction
Pavements
Recyclability
Rheological properties
rheology
rutting
Sustainable pavement
synthetic binder
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Summary:The asphalt industry is aiming to produce high-quality materials and efficient technologies for pavement construction. One such technology that attracts attention is epoxy asphalt. This paper discussed the concepts, theories and engineering properties of epoxy asphalt technology and products. As the initial step, the chemical structure of epoxy materials was explained. Then principles of epoxy asphalt technology were discussed. Subsequently, the rheological characteristics of epoxy asphalt binder (EAB) were characterised. Engineering properties of an epoxy asphalt mixture (EAM) were then evaluated. The results indicated that EAB has better rheological properties than the traditional modified and net asphalts. Moreover, the results showed that superior structural performance of EAM compared with the traditional hot and warm mixtures. However, recyclability, initial strength and total cost of pavement construction remain matters of concern.
ISSN:1468-0629
2164-7402
DOI:10.1080/14680629.2021.1963814