Development of Non-Petroleum-Based Binders for Use in Flexible Pavements – Phase II

摘要: Bio-binders can be utilized as asphalt modifiers, extenders, and replacements for conventional in bituminous binders. From the rheology results of Phase I this project, it was found that bio-binders tested had good performance, similar to asphalt, except at low temperatures. II project addresses shortcoming evaluates Superpave performance laboratory mixes produced with enhanced bio-binders. The main objective research develop a bio-binder capable replacing flexible pavements by incorporating ground tire rubber (GTR) into bio-oil derived from fast pyrolysis agriculture forestry residues. chemical compatibility new GTR assessed, low-temperature use GTR. newly developed binder, which consisted 80 percent binder 20 rubber-modified (85 15 GTR), used produce two different air void contents, 4 7 percent. test showed is or better than fatigue cracking, rutting resistance, moisture sensitivity, cracking. These need validated field projects order demonstrate adequate innovative sustainable technology pavements.