Browsing by Author "Al Shehhi, Aishah H. O."

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    Preventive Maintenance Using Recycled Asphalt: Review
    (Springer Link, 2023) Al Shehhi, Aishah H. O.; Jokhio, Gul Ahmed; Abu Tair, Abid
    The article addresses the importance of using recycled asphalt with the integration of road maintenance procedures in the road network. The road network is considered the main element of any national infrastructure development plan. The research aims to study and highlight the using recycled asphalt as a suggested sustainable method for road maintenance procedures. Therefore, the study elaborates on the historical use of recycled asphalt, its advantages, and disadvantages. Besides that, maintenance process categories to ensure the suitable type that helps provide the best quality of the network. Since roadway pavement assessment is based on quality as well as different characteristics parameters such as rutting, cracking, pavement quality Index, and roughness in addition to other parameters. The primary method used in this study is the review of existing literature. It can be concluded that the use of recycled asphalt in road maintenance can become a viable and sustainable alternative to current road maintenance practices.
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    The Environmental and Economic Impacts of the Use of Recycled Asphalt During the Preventive Maintenance of Roadways in the UAE
    (SpringerLink, 2024) Al Shehhi, Aishah H. O.; Jokhio, Gul Ahmed
    This article studies the environmental and economic benefits expected from using recycled asphalt pavement in roadway maintenance by comparing the life cost analysis of conventional and recycled pavement. When comparing recycled and conventional asphalt, it turns out that the recycled asphalt cost is 28,060,400 Dhs compared to conventional asphalt's cost of 40,207,900 Dhs. Consequently, utilizing recycled asphalts will save around 12,147,500 Dhs, which is about 70% of the expense divided between the two pavements. This is because the duration of each maintenance process is different recycled asphalt requires 9 steps, which is the same as 33 days, compared to 12 steps for conventional asphalt, which requires 85 days. Calculating the waste from Dibba-Masafi Road is 23,104 m with the conventional pavement shows that managing this construction area’s waste is a challenge within its given rising volume of waste. However, by using recycled asphalt 3040 m of waste will be consumed which is a good amount to start a change in the roadway maintenance processes. Moreover, the assets that should be included in the roadway components, the norms and requirements set forth by the relevant authorities, and the minimal construction cost determined by quantity surveying are taken into account which resulted in the findings of this research demonstrating recycled asphalt as a long-term fix.