Investigation of the Effect of Waste Ceramic Filler on the Performance of Microsurfacing

Due to the importance of roads in creating connections between different areas, the issue of road maintenance is always a vital issue for road organizations. One of the most important methods of preventive maintenance of roads is microsurfacing surface treatment. This preventive method reduces energy consumption and long-term maintenance costs. The purpose of this study is to evaluate the feasibility of using waste ceramic fillers in the microsurfacing mixing design to evaluate its performance. In this regard, first, the physical and chemical properties of stone materials and waste ceramic fillers are investigated and then to evaluate the performance of microsurfacing mixture, from 5 different compounds containing zero, 25, 50, 75, and 100% of waste ceramic fillers were used in three different levels of bitumen emulsion Asphalt. Samples were measured by wet adhesion tests at 30 and 60 minutes, loaded wheel, and abrasion in wet conditions according to ASTM D6372 instructions. The results showed that the mixtures containing ceramic fillers meet the requirements of the regulations and improve the microsurfacing performance. Also, among the mixtures, the mixture containing 100% ceramic fillers compared to the control sample increased the adhesion at 30 and 60 minutes by 30.8 and 33.3%, respectively, improved the abrasion resistance by 62%, and reduced the mixture bleeding by 31 Percent. This mixture has 2% more emulsion bitumen than the control sample to achieve proper adhesion in a given time.