Abstract
In the present work, the evaluation of chicken feather particles (CFP) and styrene-butadiene/chicken feather (SBS-CF) composites as modifiers for asphalt binder is presented. It is well known that elastomers are the best asphalt modifiers, because their thermoplastic behavior assists asphalts in improving the range of their mechanical properties at both low and high temperatures. Nowadays, the use of natural products and byproducts as fillers for polymer matrices has been a matter of research, and the field of asphalt modification is not the exception. Chicken feather particles (CFP) is a waste material whose main component is keratin, which offers remarkable properties. In the present work, CFP was used as a filler of a styrene-butadiene rubber matrix (SBS) with radial structure, to obtain a composite intended as an asphalt modifier. Besides, raw CFP was also tested as an asphalt modifier. Physical, thermal and rheological properties of the modified asphalts were evaluated in order to determine their degree of modification with respect to the original asphalt. The results show that the addition of raw CFP improves some physical properties as penetration and decreases the phase separation; furthermore, the asphalt modified with CFP displayed similar rheological properties to those shown by the asphalt modified with SBS, while some other properties resulted in being even better, like the phase separation, with the advantage that the CFP comes from a natural waste product.
Highlights
The increasing vehicular flow, as well as dramatic climate change, are some of the main causes of road asphalt distress; it is necessary to improve its performance
The results suggest that chicken feather particles (CFP) interactions are efficient enough to affect both the thermal and mechanical properties of the asphalt, as a consequence of the dispersion of the CFP domains within the asphalt matrix [29]
According to the results of this study, CFP showed that it can be considered as a potential material for asphalt modification, due to the improvements induced on the physical properties of the pure asphalt such as softening temperature, penetration, and phase separation, which resulted in increasing its stability and stiffness
Summary
The increasing vehicular flow, as well as dramatic climate change, are some of the main causes of road asphalt distress; it is necessary to improve its performance. The high production costs, which are directly related to the international prices of crude oil, as well as the high level of pollution involved in the processing of asphalt, are restrictions demanding new materials that meet quality and environmentally friendly criteria, as well as low cost. These motivations are encouraging researchers to employ waste materials as modifiers of asphalt blends with the purpose of using sustainable resources in asphalt modification technology.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
