Stone mastic asphalt pavements are preferred worldwide as they are more resistant to heavy traffic loads. The stone mastic asphalt pavement design involves the use of 70-80% of coarse aggregate, 8-12% of filler, 5-7% of binder, and approximately 0.3-0.5% of fibre. The gap-graded structure and high binder content of stone mastic asphalt cause bitumen to drain down from aggregates. Marshall test and Schellenberg bitumen drainage test are performed in this research on samples prepared with different quantities of textile waste and cellulose fibre. The results of the research show that textile waste can be used instead of traditional fibres.
Stone mastic asphalt requires a high amount of binder due to the high interaggregate void ratio, which causes the bitumen to drain from the aggregates. Pavement costs increase due to the expensiveness of conventional fiber (mineral, cellulose) used to prevent draining. In this study, the use of textile waste, which is considered as waste in textile factories, instead of cellulose fiber was investigated. Within the scope of the study, Marshall test, Schellenberg bitumen draining test and Sand Patch test were performed on the samples prepared with the addition of textile waste and cellulose fiber at different rates. When the test results are evaluated together, it has been determined that textile waste contributed to Marshall stability compared to cellulose fiber and showed higher performance with less draining. It was determined by the Sand Patch test that the used aggregate gradation provided the depth condition of the surface texture. The results of the study show that textile wastes can be used instead of traditional fiber in terms of both waste disposal and reduction of coating cost.
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