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Aging Performance of Base and Modified Bitumen

Li, Ma / Yurong, Pan

The influence of aging on the chemical structure of base bitumen and SBS modified binders was investigated by Nuclear Magnetic Resonance (NMR). The rolling thin film oven (RTFO), termed as short-term aging, and pressurized aging vessel (PAV), termed as long-term aging, tests were used to simulate the laboratory aging of this bitumen. In the process of aging, it was found that several chemical reactions were occurred including isomerization, dealkylation and dissociation. Due to ageing, asphaltene aggregates in base asphalt become larger, and network structure in SBS modified asphalt was disappeared.

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Aging Performance of Base and Modified Bitumen

Li, Ma / Yurong, Pan

The influence of aging on the chemical structure of base bitumen and SBS modified binders was investigated by Nuclear Magnetic Resonance (NMR). The rolling thin film oven (RTFO), termed as short-term aging, and pressurized aging vessel (PAV), termed as long-term aging, tests were used to simulate the laboratory aging of this bitumen. In the process of aging, it was found that several chemical reactions were occurred including isomerization, dealkylation and dissociation. Due to ageing, asphaltene aggregates in base asphalt become larger, and network structure in SBS modified asphalt was disappeared.

Aging Performance of Base and Modified Bitumen

Li, Ma / Yurong, Pan

The influence of aging on the chemical structure of base bitumen and SBS modified binders was investigated by Nuclear Magnetic Resonance (NMR). The rolling thin film oven (RTFO), termed as short-term aging, and pressurized aging vessel (PAV), termed as long-term aging, tests were used to simulate the laboratory aging of this bitumen. In the process of aging, it was found that several chemical reactions were occurred including isomerization, dealkylation and dissociation. Due to ageing, asphaltene aggregates in base asphalt become larger, and network structure in SBS modified asphalt was disappeared.

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Title:

Aging Performance of Base and Modified Bitumen

Additional title:

Lecture Notes in Civil Engineering

Contributors:

Casini, Marco (editor) / Li, Ma (author) / Yurong, Pan (author)

Conference:

International Civil Engineering and Architecture Conference ; 2022 ; Singapore, Singapore

Published in:

Proceedings of the 2nd International Civil Engineering and Architecture Conference ; Chapter: 4 ; 33-38

Lecture Notes in Civil Engineering ; 279

Publication date:

2022-07-13

Size:

6 pages

ISBN:

978-981-19-4293-8 , 978-981-19-4292-1

ISSN:

2366-2565 , 2366-2557

DOI:

https://doi.org/10.1007/978-981-19-4293-8_4

Type of media:

Article/Chapter (Book)

Type of material:

Electronic Resource

Language:

English

Keywords:

Bitumen , SBS modified bitumen , Chemical structure Engineering , Civil Engineering , Arts , Building Construction and Design

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