Deterioration of Petroleum Asphalt by Ultraviolet Ray

Sakanoue, Shinji; Kobayashi, Haruji

doi:10.1246/nikkashi1898.67.10_1589

Cited by 1 publication

(2 citation statements)

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“…4. As indicated by Sakanoue and Kobayashi (1965), photodegradation seems to be an oxidation reaction. The increase in CI was more by OD test for one month as compared with the PAV test.…”

Section: Behavior Of Oxygen-containing Functional Groupsmentioning

confidence: 98%

“…For example, the thin film oven (TFO) test or the rolling TFO test is used for examining the thermal degradation during storage, mixing, and paving work, and the pressure aging vessel (PAV) test developed by the Strategic Highway Research Program (SHRP) is used for the in-service degradation. Besides heating and oxidation, the effects of UV radiation on asphalt pavement materials have been pointed out in numerous reports (Takemura 1962;Sakanoue and Kobayashi 1965;Meiarashi et al 1999). However, there is no standardized test that allows quantitative evaluation of the photodegradation of asphalt materials.…”

Section: Introductionmentioning

confidence: 99%

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Photodegradation test of asphalt binder using pressed thin film samples

Yamaguchi¹,

Sasaki²,

Meiarashi³

2005

Can. J. Civ. Eng.

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Abstract:The photodegradation behavior of a straight asphalt was investigated using a new method "photodegradation test of asphalt binder using pressed thin film samples". Although the photodegradation caused by outdoor exposure is limited to the near surface, the results confirmed that the degree of degradation during 1 to 2 months is more severe than that by the pressure aging vessel (PAV) test, which is designed to simulate the degradation that will occur in the asphalt pavement over 5 to 10 service years.Key words: asphalt binder, aging, photodegradation, thin film, DSR, FTIR.Résumé : Le comportement à la photodégradation d'un asphalte sans additif a été étudié en utilisant une nouvelle mé-thode, « essai de photodégradation d'échantillons de minces couches pressées de liant routier ». Bien que la photodé-gradation engendrée par l'exposition aux éléments soit peu profonde, les résultats ont confirmé que le niveau de dégradation durant 1 à 2 mois est plus élevé que celui indiqué par l'essai de vieillissement PAV (pressure aging vessel) qui est conçu pour simuler la dégradation du revêtement en asphalte durant une période de 5 à 10 ans.Mots clés : liant routier, vieillissement, photodégradation, mince couche, rhéomètre de cisaillement dynamique (« dynamic shear rheometer : DSR »), FTIR.[Traduit par la Rédaction] Yamaguchi et al. 1169

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“…4. As indicated by Sakanoue and Kobayashi (1965), photodegradation seems to be an oxidation reaction. The increase in CI was more by OD test for one month as compared with the PAV test.…”

Section: Behavior Of Oxygen-containing Functional Groupsmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%