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Analys av bitumenåldring vid tillverkning- och användningsskedet: En jämförelse mellan hur olika tillsatser påverkar bitumenåldring
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
KTH, School of Architecture and the Built Environment (ABE), Civil and Architectural Engineering, Building Technology and Design.
2014 (Swedish)Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesisAlternative title
Analysis of bitumenaging in asphalt : Examine which additive has the most effect on aging of bitumen (English)
Abstract [sv]

Det är viktigt att vägarna håller så länge som möjligt. En faktor som har en påverkan i asfaltens långvarighet är bitumen. När bitumenet föråldras försämras dess egenskaper som ökar risken att skador uppstår på asfalten. Med hjälp av olika tillsatser kan bitumenets egenskaper förbättras. En av dessa egenskaper är bitumenåldring. Sammanlagt finns det tre olika skeden i bitumenåldring. Av dessa tre skeden kommer tillverknings- och användningsskedet att undersökas.

I detta examensarbete kommer tre olika tillsatsers påverkan i bitumenföråldring att undersökas. Detta kommer utföras genom laborationer där olika metoder som penetration, mjukpunkt, fraass brytpunkt, DSR, Iatroscan, GPC och FTIR kommer användas. Det kommer också utföras styvhetestester på de tillverkade asfaltskropparna.

Resultaten som tas fram i detta examensarbete tyder på att Rediseten har bäst värden avseende åldring utav bitumen. Men detta tros inte vara på grund av tillsatsens inverkan i bitumen utan möjligheten att sänka temperaturen vid tillverkningen av asfalten.

Abstract [en]

It is important that roads last as long as possible. One factor that has a prolonged effect on asphalt is bitumen. When bitumen ages the characteristics deteriorates which increases the risk for damages on the asphalt. With the help of different additives the characteristics of bitumen could improve. One of these characteristics is bitumen aging. There are three different stages in bitumen aging. Of these three stages will the production and user stage be examined.

In this thesis will three additives effect on bitumen aging be examined. This will be performed by doing laboratory experiments where different methods will be used such as penetration, softening point, fraass breaking point, DSR, latroscan, GPC and FTIR. Stiffness tests will be made on the constructed asphalt bodies.

Results in this thesis interprets that Rediset has the best values when it comes to aging of bitumen. It is not believed to be the additives effect in the bitumen but the fact that the additive gives the opportunity to lower the temperature during the production of the asphalt.

Place, publisher, year, edition, pages
2014. , 55 p.
Keyword [en]
bitumen, productionstage, user stage, additives, constructed asphalt bodies
Keyword [sv]
bitumen, tillverkningsskedet, användningsskedet, tillsatser, asfaltkropparna
National Category
Civil Engineering
Identifiers
URN: urn:nbn:se:kth:diva-147534OAI: oai:DiVA.org:kth-147534DiVA: diva2:730327
External cooperation
Peab Asfalt Ab & Nynas AB
Educational program
Bachelor of Science in Engineering - Constructional Engineering and Design
Supervisors
Examiners
Available from: 2014-06-27 Created: 2014-06-27 Last updated: 2014-06-27Bibliographically approved

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