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Stability of Straight and Polymer-modified Asphalts
| Content Provider | Semantic Scholar |
|---|---|
| Author | Collins, James H. Bouldin, M. G. |
| Copyright Year | 1992 |
| Abstract | Both short- and long-term aging can have a significant influence on the performance of hot mix asphalt pavements. This is true for polymer-modified asphalts as well as for conventional asphalt cements. The latter can undergo significant age hardening during storage, mixing, and placement in the field. This long-term aging can be dramatic and lead to premature pavement failure. The effects of aging can be exacerbated in the case of permeable pavements or in regions with extreme climatic conditions. Polymer modification is a way of overcoming these potential deficiencies by providing binders with well-balanced property sets. However, unsaturated polymers are susceptible to thermal and oxidative degradation. Thus, it is imperative to avoid prolonged storage and excessive temperatures during processing. Improved thermal and oxidative stability can be achieved by modifying asphalts with saturated polymers. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://onlinepubs.trb.org/Onlinepubs/trr/1992/1342/1342-012.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
