| Title: |
Influence des UV dans le vieillissement des bitumes modifiés par un élastomère |
| Authors: |
Mouillet, Virginie; Farcas, Fabienne; Besson, Stanislas |
| Contributors: |
Centre d'études techniques de l'équipement Méditerranée (CETE Méditerranée); Avant création Cerema; Division Physico-chimie des Matériaux (LCPC/PCM); Laboratoire Central des Ponts et Chaussées (LCPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12) |
| Source: |
ISSN: 0016-2361. |
| Publisher Information: |
HAL CCSD; Elsevier |
| Publication Year: |
2008 |
| Collection: |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
| Subject Terms: |
BITUME MODIFIE PAR DES POLYMERES; ELASTOMERE; VIEILLISSEMENT; ULTRAVIOLET; SPECTROMETRIE; CHROMATOGRAPHIE; [CHIM.ANAL]Chemical Sciences/Analytical chemistry; [CHIM.POLY]Chemical Sciences/Polymers; [SPI.MAT]Engineering Sciences [physics]/Materials |
| Description: |
Laboratory methods for simulating the short term and long term ageing occuring during the service life of neat and polymer modifed bitumens in a pavement are standardized but none of them takes into account the influence of UV radiations. If the impact of thermal ageing on the degradation of SBS elastomers in bitumens has been extensively studied, there is not studies dealing with the photo-oxidation of these copolymers in a bituminous matrix. So, the aim of this study was to investigate, by FTIR spectrometry and SEC chromatography, whether the architecture of elastomers (linear or radial) might have an influence on their ageing by UV radiation in a same bituminous matrix. The results show that the elastomers oxidation kinetic does not depend on their architecture unlike the disappearance kinetic of trans-butadiene double bond. But, when putted into the same base bitumen, the two copolymers display exactly the same oxidation kinetic and the same decreasing kinetic of trans-butadiene double bond. This study has permit to highlight that inside the bituminous matrix, the elastomers architecture does not influe on its degradation when submitted to UV radiation and, and a protection of the elastomers by the studied bitumen towards UV radiation. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
hal-00428666; https://hal.archives-ouvertes.fr/hal-00428666 |
| Availability: |
https://hal.archives-ouvertes.fr/hal-00428666 |
| Accession Number: |
edsbas.7C0C48A1 |
| Database: |
BASE |