@article{tapkın_keskin_2013,  title={Rutting analysis of 100 mm diameter polypropylene modified asphalt specimens using gyratory and Marshall compactors},  volume={16},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392013005000016},  DOI={10.1590/S1516-14392013005000016},  number={2},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Tapkın, Serkan and Keskin, Mustafa},  year={2013},  month={Mar},  pages={546–564} }