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- Title
ATNAUJINANČIŲJŲ MEDŽIAGŲ POVEIKIS PASENDINTO POLIMERAIS MODIFIKUOTO KELIŲ BITUMO PENETRACIJAI IR MINKŠTĖJIMO TEMPERATŪRAI.
- Authors
VAITKUS, Audrius; PALIONYTĖ, Indrė; KLEIZIENĖ, Rita
- Abstract
The article describes the effiency of polymer-modified road bitumen regeneration with two types of rejuvenators. Two alternative rejuvenators have been selected aromatic oil Nygen 910 and soft road bitumen V12000. PMB 45/80-55 bitumen, which is used in the upper and lower layers of asphalt pavement, was investigated. During the life time of the asphalt pvement, due to the effects of solar UV radiation, temperature and oxygen, of all the layers of the structure asphalt top layer reaches the highest degree of aging. Short-term and long-term aging were performed to simulate the aging of the bitmen under laboratory conditions. To determine the optimal amount of rejuvenator experiments were performed with 8%, 10% ir 14% rejuvenator by bitumen mass. The effect of rejuvenators were evaluated by studying the main physical properties of bitumen: penetration and softening temperature. Ina n experimental study, aromatic oil was found to be more than 2.5 times more effective than soft bitumen.
- Subjects
SOLAR ultraviolet radiation; ASPHALT pavements; BITUMEN; ASPHALT; AGING
- Publication
Science: Future of Lithuania / Mokslas: Lietuvos Ateitis, 2021, Vol 13, p1
- ISSN
2029-2341
- Publication type
Article
- DOI
10.3846/mla.2021.15173