| Issue |
E3S Web Conf.
Volume 464, 2023
The 2nd International Conference on Disaster Mitigation and Management (2nd ICDMM 2023)
|
|
|---|---|---|
| Article Number | 11009 | |
| Number of page(s) | 5 | |
| Section | Environmental Issues | |
| DOI | https://doi.org/10.1051/e3sconf/202346411009 | |
| Published online | 18 December 2023 | |
Performance of rubber asphalt in split mastic asphalt mixture
1 Engineering Faculty, Universitas Andalas, Padang, Indonesia
2 School of Civil Engineering, Universiti Sains Malaysia, Penang, Malaysia
* Corresponding author: elsaeka@eng.unand.ac.id
Latex is obtained by cutting the stems of sap-producing plants. Latex can stabilise asphalt mixtures [1]. Rubber asphalt is polymer-modified asphalt to which additives are added as natural rubber in the form of a liquid, namely latex. The type of pavement used in this research is Split Mastic Asphalt (SMA). SMA is a surface layer with a high percentage of fine aggregate than Asphalt-Concrete and Hot-Rolled- Sheets pavement [2]. Tests were carried out using 7% latex of the total asphalt weight. The research was conducted to determine the value of the Marshall characteristics and compare between 7% Rubberized (Rb) Asphalt and Non-Rubberized (NRb) Asphalt. The stability value increased by 43.7% for Rb asphalt in the SMA pavement mixture compared to the NRb Asphalt. The stability increases from 1943.23 kg for NRb asphalt to 2791.712 kg for SMA with 7% rubber (Rb Asphalt). The flow value for Rb Asphalt SMA follows the standard, namely 3.77 mm, with an MQ value of 760.24 kg/mm. With an increase in Marshall parameter values, the rubber Asphalt was appropriate to be added to the SMA pavement. Road surfaces made with rubber SMA may require less frequent maintenance and resurfacing, which can reduce the environmental impact associated with road construction and maintenance activities.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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