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Rheological properties and fatigue restistance of crumb rubber modified bitumen
| Content Provider | Semantic Scholar |
|---|---|
| Author | Hamed, Farag Khodary Moalla Vormwald, Michael |
| Copyright Year | 2010 |
| Abstract | This paper describes the results of a research program that was performed to evaluate the rheological properties and fatigue resistance of crumb rubber modified bitumen. Crumb rubber has been used in field of highway construction to enhance the performance of asphalt concrete pavements. Fundamental dissipated energy concept and finite element simulation were used to evaluate the rheological properties and fatigue resistance for crumb rubber modified and unmodified bitumen. Rheological tests were performed using a dynamic shear rheometer apparatus and finite element simulation was done using ABAQUS program. The conventional bitumen used in this research was AC (70/100) penetration grade, modified with crumb rubber at four different modification levels namely 3%, 5%, 7% and 10% by weight of the bitumen. It has been found that the fatigue life of the modified bitumen is about two times higher than conventional bitumen and the 3D finite element model shows good agreement with the dynamic shear rheometer result. In conclusion, at low rubber content 3% and 5%, the behaviour of the modified bitumen remains close to that of the conventional bitumen and the optimum crumb rubber content for good rheological properties and long fatigue life was found to be 10%. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://data.abacus.hr/h-a-d/radovi_s_kongresa/nagoya_japan_2010/90262.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
