| Autor: |
Mohammed Abdullahi Ali, Putra Jaya Ramadhansyah, Marie Delbrel Étienne Joseph, Wee Kang Choong, Ti Kok Sien, Yaacob Haryati, Abdul Hassan Norhidayah, Abdul Hamid Nor Hayati, Ramli Noram Irwan |
| Jazyk: |
English<br />French |
| Rok vydání: |
2018 |
| Předmět: |
|
| Zdroj: |
E3S Web of Conferences, Vol 65, p 02003 (2018) |
| Druh dokumentu: |
article |
| ISSN: |
2267-1242 |
| DOI: |
10.1051/e3sconf/20186502003 |
| Popis: |
The aim of this paper is to investigate the performance response of a set of coir fibre modified asphalt samples subjected different ageing conditions and containing three different fibre contents. The laboratory experimental programs are indirect tensile test at 25°C and repeated load axial test at 40°C. The results showed that the fibres improved the mixture’s performance. The main findings obtained at 25°C for short and long-term ageing reveal that low fibre content at around 0.3% per aggregate weight display a stiffness modulus up to 14% higher than that of unmodified mixtures, hence showing that fibres may improve the bearing capacity and rut-resistance of asphalt mixtures. Conversely, as the amount of fibre increases to 0.5% and 0.7%, the stiffness decreases to the point of becoming unacceptably low, almost 80% lower than unmodified mixes stiffness. However the data also reveal that high fibre contents at 0.5% and above completely neutralize the impact of ageing on the mixture, indicating that fibre-modified mixtures would yield longer lives. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
