Recycling waste packaging tape into bituminous mixtures towards enhanced mechanical properties and environmental benefits. (20th August 2019)

• Record Type: Journal Article
• Authors: Yu, Huayang; Zhu, Zihan; Zhang, Zeyu; Yu, Jiangmiao; Oeser, Markus; Wang, Duanyi
• Is Part Of: Journal of cleaner production. Volume 229(2019)
• Page Start: 22
• Page End: 31
• Publication Date: 2019-08-20
• Subjects: Used packaging tape -- Waste management -- Mixture design -- Mechanical properties -- Mechanistic-empirical simulation; Factory and trade waste -- Management -- Periodicals; Manufactures -- Environmental aspects -- Periodicals; Déchets industriels -- Gestion -- Périodiques; Usines -- Aspect de l'environnement -- Périodiques; 628.5
• DOI: 10.1016/j.jclepro.2019.04.409
• Languages: English
• ISSNs: 0959-6526

Abstract

Abstract: The rapid development of online shopping and express delivery brings vast amount of waste packing tape (WPT). Recycling WPT as an asphalt performance-enhanced modifier may bring benefits in both environmental and engineering aspects. This study aimed to evaluate the feasibility of using WPT to improve the mechanical properties of asphalt mixtures. To this end, the hot and warm WPT mixtures were prepared and tested. The engineering performance including mixture workability, stiffness modulus, fatigue resistance, rutting resistance, moisture susceptibility, tensile strength and tensile failure strain were characterized. Moreover, the long-term service performance of the mixture was predicted using AASHTO Mechanistic-Empirical Pavement Design software. Based upon the results of laboratory experiments and simulation, it was found that the mechanical performance of WPT asphalt mixture including moisture sensitivity, rutting and fatigue resistance of WPT modified asphalt mixture was comparable to that of SBS asphalt mixture. The life-long service performance of WPT mixture was much superior to that of raw asphalt mixture. The warm mix asphalt additive, FT-wax, allowed the WPT asphalt mixture to be produced at same temperature to mixture with raw asphalt. Meanwhile, the mechanical properties of warm WPT were slightly better than those of hot WPT. Finally, this study proves that recycling waste packing tapes as asphalt modifier is a promising solution with both environmental and engineering merits. Highlights: Recycling WPT as asphalt modifier is a promising solution with both environmental and engineering merits. The mechanical properties of WPT asphalt mixture are comparable to those of SBS asphalt mixture. FT-wax works well with WPT asphalt mixture, providing satisfying workability and mechanical properties.