| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 250539 | Case Studies in Construction Materials | 2014 | 8 Pages |
•Waste rubber powder has high impact on reducing rut depth of asphalt mixtures.•Asphalt mixtures containing 10% waste rubber powder has better performance at higher temperatures.•Rubber powder with reducing thermal sensitivity of asphalt mixtures can increase its resistance against permanent deformation.•The results show that by replacing 10% of the bitumen used in asphalt mixes with waste rubber powder, rubberized asphalt mixtures will have better performance.
Low resistance against dynamic loads and short service life of pavement are the most significant problems in the conservation and maintenance of roads, to the extent that, annually enormous costs are spent in order to improve capabilities of road services in the country. Research shows that the use of some wastes such as waste rubber powder in asphalt mixtures not only increase its serves life but also cause to reduce production costs; furthermore, recycling the crumb rubber has also considerably environmental benefits environmental benefits such as reduced need for landfill, less atmospheric pollution from burning. In this paper, the effect of adding waste rubber powder on the rutting performance of asphalt mixtures has been studied. In order to compare the performance of rubberized asphalt mixtures and conventional asphalt, wheel track test has been used. The results of this study show that the use of rubber powder caused a significant decrease in the rate of rutting depth of rubber asphalt mixtures compared to control samples.
