Biocomponent-Based Quality Improvement Opportunities of Binders for Road Construction

Tálosi, Gréta and Gergó, Péter and Holló, András (2019) Biocomponent-Based Quality Improvement Opportunities of Binders for Road Construction. Hungarian Journal of Industry and Chemistry, 47 (2). pp. 77-83. ISSN 0133-0276

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Abstract

In our experimental work, stabilised pinewood-based fast pyrolysis bio-oil and the linear block copolymer styrene butadiene styrene (SBS) were used as additives in bitumen used for road construction (Penetration Grade 50/70) to produce a higher-performance asphalt binder. Our aim was to investigate the modifying effect of the biocomponent on bituminous binders and prepare a comparative analysis. In order to characterize our samples, conventional and rheological measurements were performed. It was concluded that the biocomponent by itself cannot provide a favourable bituminous binder with beneficial mechanical properties, however, a favourable solution may be achieved by combining it with the block copolymer SBS. Based on our test results, stabilised pinewood-based fast pyrolysis bio-oil could be blended with the examined bituminous binders up to concentrations of 10 w/w% resulting in good bitumen quality.

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