Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6711986 | Construction and Building Materials | 2018 | 14 Pages |
Abstract
Bio-binder can be partially substituted for petroleum bituminous binder in highway engineering, providing with economic, social and environmental benefits. Biomass commonly used as a renewable energy source is a typically raw material for producing bio-binder, including soybean oil, palm oil, vegetable oil, microalgae, engine oil residue, grape residues, swine waste, and so forth. In this review, the production methods of different bio-oils and bio-binders from various biomasses were introduced firstly. And then, the physical and chemical characteristics of biomass heavy oils were summarized. Meanwhile, the rheological properties and fatigue performances of bio-binders were compared and analyzed. Moreover, conventional engineering characteristics of bio-asphalt mixtures as well as their practical applications were provided and discussed. Current review concluded that the most efficient method to obtain bio-oil from biomass is pyrolysis technology at optimized reaction conditions. The moisture content of bio-oil is found to have significant influences on the performances of bio-asphalt. Overall, various types of bio-binders have their own positive and negative properties. Most of bio-binders can improve the low temperature performance, but unfortunately depress the high temperature performance of bio-modified binders. Future research is recommended to focus on the interaction mechanism of biomass heavy oil and matrix asphalt on microscale. The development of innovative technologies to use more bio-asphalt without prejudice to the performances of asphalt mixtures is also an interesting topic.
Keywords
Related Topics
Physical Sciences and Engineering
Engineering
Civil and Structural Engineering
Authors
Ningyi Su, Feipeng Xiao, Jingang Wang, Lin Cong, Serji Amirkhanian,