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Marek Iwanski, Grzegorz Mazurek
Analysis of the effect of aging process on selected F-T wax
modified bitumen
| Conference Information: |
9th International Conference on Environmental
Engineering, MAY 22-24, 2014 Vilnius, LITHUANIA |
| Source: |
ICEE-2014 - International Conference on Environmental
Engineering |
| Book Series: |
International Conference on Environmental Engineering
(ICEE) Selected papers |
| ISSN: |
ISSN 2029-7092 online |
| ISBN: |
978-609-457-640-9 / 978-609-457-690-4 CD |
| Year: |
2014 |
| Publisher: |
Vilnius Gediminas Technical University Press Technika |
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Abstract
Effect of adding different amount of the modern wax (F-T wax) to three bitumens such as 35/50 and 160/220 penetration grade were
studied. The main objective of the experiment was to evaluate a changing in rheological properties of the bitumen with a synthetic wax
before and after aging process according to RTFOT method and supported by the Multiple Stress Creep Recovery test (MSCR). The
experiment was conducted by means of different types of laboratory equipment, such as rotational viscosimeter, ductilometer as well as
equipment for determining basic rheological parameters like softening point temperature, penetration grade. Moreover an analysis was
enriched by epifluorescence microscope observation of wax forms. The results show that the type of the bitumen had a decisively
influence on aging process of the wax modified bitumen. The conducted analysis did not reveal a strong correlation between the modern
wax content and aging rate of the bitumen. Additionally, the interaction between a modern wax content and a type of bitumen affected
changes in breaking point temperature.
Keywords: MSCR test; aging; F-T wax; rheology.
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