Use of crumb rubber in lieu of binder grade bumping for mixtures with high percentage of reclaimed asphalt pavement
| Autor: | M. Emin Kutay, Salih Kocak |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
050210 logistics & transportation
Materials science Fatigue cracking 05 social sciences 0211 other engineering and technologies 02 engineering and technology Economic benefits Natural rubber Asphalt pavement Asphalt visual_art 021105 building & construction 0502 economics and business visual_art.visual_art_medium Bumping Crumb rubber Composite material Civil and Structural Engineering |
| Zdroj: | Road Materials and Pavement Design. 18:116-129 |
| ISSN: | 2164-7402 1468-0629 |
| DOI: | 10.1080/14680629.2016.1142466 |
| Popis: | Use of recycled/reclaimed asphalt pavement (RAP) leads to economic as well as environmental benefits. However, increasing the percentage of RAP in a new asphalt pavement may hinder the economic benefits due to the necessity of expensive softer binders used to compensate for RAP stiffening effect. Alternatively, this problem may potentially be overcome by use of another recycled material: crumb rubber (CR). In this study, linear viscoelastic, thermal and fatigue cracking properties of mixtures prepared with different rubberised asphalt binders were compared with the soft binders. The scope of the testing included asphalt mixtures produced from the following binders; (i) devulcanised rubber, (ii) CR terminally blend, (iii) CR wet process, (iv) soft binder (PG 58-34) and (v) base (control) binder (PG 58-28). The results of the fatigue tests indicated that CR-modified asphalt mixtures made with the base binder (PG58-28) outperformed the mixture made with grade bumped (PG58-34) binder. Similar results were obs... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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