An extensive laboratory investigation of the use of bio-oil modified bitumen in road construction

作者：Guarin Alvaro^*; Khan Abdullah; Butt Ali Azhar; Birgisson Bjorn; Kringos Nicole

来源：Construction and Building Materials, 2016, 106: 133-139.

DOI：10.1016/j.conbuildmat.2015.12.009

• Bio-oil modified bitumen
• Fluxed bitumen
• Fish oil
• Rapeseed oil
• Binder rheological and chemical characterization

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.

• 出版日期2016-3-1