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TERMOXIDATIVE AGING OF POLYMER MODIFIED BITUMEN (CROSBI ID 617430)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija

Ocelić Bulatović, Vesna ; Rek, Vesna ; Jurkaš Marković, Kristina TERMOXIDATIVE AGING OF POLYMER MODIFIED BITUMEN // 15th Ružička days "Today science-tommorow industry", Book of abstracts / Šubarić, Drago (ur.). Osijek: Grafika Osijek, 2014. str. 53-53

Podaci o odgovornosti

Ocelić Bulatović, Vesna ; Rek, Vesna ; Jurkaš Marković, Kristina

engleski

TERMOXIDATIVE AGING OF POLYMER MODIFIED BITUMEN

Bitumen aging resulting in hardening of bitumens and embrittlement, both in application and in service, contributes greatly to the deterioration of paving application. Aging is a very complex process of bitumen ; BIT and the complexity increase when polymers are involved in polymer modified bitumens, PmBs. This paper presents an investigation of termooxidative aging of PmB prepared from bitumen and five active and inactive polymers. Aging of the PmBs was performed using the Rolling Thin Film Oven Test, RTFOT. The PmBs were characterized by means of Fourier Transform Infrared Spectroscopy, FTIR, differencial scanning calorimetry, DSC, and dynamic shear rheometry, DSR. It was found that the effect of aging on the chemistry and rheology of the PmB was influenced by the bitumen and was strongly dependent on the characteristics of the polymer. The rheological changes of styrene- butadiene- styrene, SBS, modified bitumens, were attributed to polymer degradation and bitumen oxidation with the aging. In the case of ethylene vinyl acetate, EVA, modified bitumens'changes after aging were mainly due to the oxidative hardening of the bitumen and the degradation of crystal region in the EVA PmBs. However, they have been proven to be very stable for active polymers under aging due to the formation of chemical bonds.

polymer modified bitumen; termoxidative aging; FTIR; DSC; DSR

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Podaci o prilogu

53-53.

2014.

objavljeno

Podaci o matičnoj publikaciji

15th Ružička days "Today science-tommorow industry", Book of abstracts

Šubarić, Drago

Osijek: Grafika Osijek

978-953-6894-52-9

Podaci o skupu

15th Ružička days "TODAY SCIENCE – TOMMOROW INDUSTRY"

poster

11.09.2014-12.09.2014

Vukovar, Hrvatska

Povezanost rada

nije evidentirano