Influence of Polypropylene Length on Stability and Flow of Fiber-reinforced Asphalt Mixtures
| Autor: | Ramin Bayat, Siamak Talatahari |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Polypropylene
Environmental Engineering Materials science business.industry Rut 05 social sciences Flow (psychology) Building and Construction 010501 environmental sciences Geotechnical Engineering and Engineering Geology 01 natural sciences Asphalt concrete chemistry.chemical_compound chemistry Asphalt pavement Asphalt 0502 economics and business Gradation Fiber Composite material business 050203 business & management 0105 earth and related environmental sciences Civil and Structural Engineering |
| Zdroj: | Civil Engineering Journal. 2:538-545 |
| ISSN: | 2476-3055 |
| DOI: | 10.28991/cej-2016-00000056 |
| Popis: | Engineers are constantly trying to improve the performance of the flexible pavements. The main surface distress types which cause maintenance and disruption are rutting and fatigue cracking. For solving these problems, many studies have been carried out until now, ranged from changing gradation to adding polymers and fibers to asphalt mixture. In this study, polypropylene additive was selected as fiber additive because of low costing and having good correlation with asphalt pavement. Three type of polypropylene additive in the length 6, 12 and 19 mm were selected and used at five different percentages in the asphalt concrete mixture. Asphalt specimens were analysed by Marshall Analysis and finally tested by Marshall Stability apparatus. Adding polypropylene increased Marshall Stability (38%), and decreased Flow (39%). These results show that polypropylene can be helpful for increasing pavement life. |
| Databáze: | OpenAIRE |
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