Abstract
Several roads in Iceland with bio-oil modified surface dressings exhibited severe distresses such as bleeding, binder drain down, and eventually as surface dressing sticking to tires. Samples from six road sections were evaluated in the laboratory to determine the causes of the failure. Binders with and without bio-oil, rapeseed oil and fish oil, were evaluated through a comprehensive rheological and chemical characterization. Both oils, exhibited solubility issues with the bitumen; consequently, the oils covered the aggregates, preventing bonding between binder and stones. It appears that fish oil worked a little better than rapeseed oil for binder modification.
| Original language | English |
|---|---|
| Pages (from-to) | 133-139 |
| Number of pages | 7 |
| Journal | Construction and Building Materials |
| Volume | 106 |
| Early online date | 22 Dec 2015 |
| DOIs | |
| Publication status | Published - 1 Mar 2016 |
Bibliographical note
-Keywords
- binder rheological and chemical characterization
- bio-oil modified bitumen
- fish oil
- fluxed bitumen
- rapeseed oil
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