A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ageing Performances of Asphaltite Modified Bitumens; Comparisons with Equivalent Petroleum Bitumens
This work focuses on the ageing behavior of asphaltite modified paving bitumens. The addition of asphaltites in soft petroleum bitumens gives harder binders which are suitable for the production of high modulus bituminous mixes used in pavements construction. Such techniques are already used in several projects. However it is not known how asphaltite modified binders behave during ageing. In general, bitumens get harder, more elastic and consequently more brittle during ageing. In order to evaluate the ageing incidence we have studied the evolution of several mechanical properties of asphaltite modified bitumens during ageing. The evolutions of asphaltite modified bitumens during aging are compared with the evolutions of pure petroleum bitumens of equivalent grade. The petroleum bitumens of equivalent grade, used for comparison purposes, are produced in refinery in France by the same fabricant as the soft petroleum bitumen which has been selected to be modified by asphaltites. All the petroleum bitumens satisfy the European Norms and are used currently in France and elsewhere. The present study shows that the asphaltite modification gives hard paving binders which have better performances, regarding to the ageing evolution, compared to hard petroleum bitumens produced in refinery. The asphaltite appears to be an ageing inhibitor.
Ageing Performances of Asphaltite Modified Bitumens; Comparisons with Equivalent Petroleum Bitumens
This work focuses on the ageing behavior of asphaltite modified paving bitumens. The addition of asphaltites in soft petroleum bitumens gives harder binders which are suitable for the production of high modulus bituminous mixes used in pavements construction. Such techniques are already used in several projects. However it is not known how asphaltite modified binders behave during ageing. In general, bitumens get harder, more elastic and consequently more brittle during ageing. In order to evaluate the ageing incidence we have studied the evolution of several mechanical properties of asphaltite modified bitumens during ageing. The evolutions of asphaltite modified bitumens during aging are compared with the evolutions of pure petroleum bitumens of equivalent grade. The petroleum bitumens of equivalent grade, used for comparison purposes, are produced in refinery in France by the same fabricant as the soft petroleum bitumen which has been selected to be modified by asphaltites. All the petroleum bitumens satisfy the European Norms and are used currently in France and elsewhere. The present study shows that the asphaltite modification gives hard paving binders which have better performances, regarding to the ageing evolution, compared to hard petroleum bitumens produced in refinery. The asphaltite appears to be an ageing inhibitor.
Ageing Performances of Asphaltite Modified Bitumens; Comparisons with Equivalent Petroleum Bitumens
RILEM Bookseries
Canestrari, Francesco (editor) / Partl, Manfred N. (editor) / Themeli, Andrea (author) / Chailleux, Emmanuel (author) / Farcas, Fabienne (author) / Chazallon, Cyrille (author) / Migault, Bernard (author) / Didelet, Gilles (author)
2015-08-30
13 pages
Article/Chapter (Book)
Electronic Resource
English
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