Syaqirah Norgan (2022) Utilisation of reclaimed asphalt pavement with warm mix asphalt as sustainable pavement technologies: Comprehensive review and challenges. Universiti Malaysia Sabah. (Unpublished)
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Abstract
Road construction is one of the most significant projects all over the world. However, the high temperature required when producing asphalt mixture could affect the environment. Therefore, new technologies of warm mix asphalt (WMA) incorporated with reclaimed asphalt pavement (RAP) are introduced as solutions to the concern. Previous research indicated that this technology showed good performance and promoted environmental, economic, and social sustainability. Thus, this study aims to analyze and review RAP-WMA technologies. Specifically, each performance and sustainability will be categorized and analyzed. Further, identified the challenges in implementation, particularly in Sabah, through a questionnaire also done. Based on the literature, the structured review in tables and figures is used to categorize each RAP-WMA performance and determine the sustainability of RAP-WMA technologies in terms of environment, economy, and society. Meanwhile, questionnaires were distributed online to road construction companies in Sabah. As a result of the review, 18 articles reported on the RAP-WMA performances. The results shows that the RAP-WMA performed as well as or better than the conventional asphalt mixture from the literature. Furthermore, 15 articles reported on the RAP-WMA sustainability, where it demonstrates sustainability in a variety of ways, including lower greenhouse gas emissions, lower production costs, and a better working environment when used. Whereas 36 people were surveyed, the data were analyzed using SPSS software and computerized-based Microsoft Excel. The result reveals that using this technology in Sabah is impacted by cultural, financial, and technical barriers. According to the respondent's assessments of the challenges using RAP-WMA technologies in Sabah, the biggest obstacle is a technical one (38%). Therefore, raising awareness, and introducing RAP-WMA technologies to clients is needed.
| Item Type: | Academic Exercise |
|---|---|
| Keyword: | Road construction , Asphalt , Warm mix asphalt , Technologies |
| Subjects: | T Technology > TE Highway engineering. Roads and pavements > TE1-450 Highway engineering. Roads and pavements > TE200-205 Materials for roadmaking |
| Department: | FACULTY > Faculty of Engineering |
| Depositing User: | DG MASNIAH AHMAD - |
| Date Deposited: | 09 Mar 2023 15:02 |
| Last Modified: | 09 Mar 2023 15:02 |
| URI: | https://eprints.ums.edu.my/id/eprint/35182 |
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