Document Type : Original Article
Authors
1
El-Nasr General Contracting CO (Hassan .M .Allam)
2
Al-Azhar University, Faculty of science, Chemistry Department
3
Egyptian Petroleum Research Institute (EPRI), 1 Ahmed El-Zomor St., Nasr City, 11727, Cairo, Egypt.
4
Petroleum applications Department, EPRI
5
Al-Azhar University, Faculty of science, Chemistry Department.
Abstract
Herein the current study, the suitability of improvement of both the workability of the asphalt during construction and its deformation resistance in service using EVA (ethylene-vinyl acetate copolymer) waste were evaluated at 2%, 4%, and 6% of waste (by weight) from binder with the addition of 2% waste cement powder to HMA (high modified asphalt) was verified via the estimation of physical properties implying (penetration test, softening point, flash point and viscosity test). Additionally, SEM, TGA and rheological analyses were utilized for modified asphalt binder whereas Marshall Test was done for HMA using waste cement powder as filler instead of limestone one. The results revealed that the physical properties of polymer modified asphalt (PMAs) such as softening point, penetration grade, penetration index, viscosity, and flash point were improved by adding waste EVA. Consequently, Marshall Stability for the results of HMA appeared highly improvement in stability, flow, unit weight and air voids.
Fortunately, these results cleared that the addition of 4% waste EVA and 2% of the cement filler produced better properties and fatigue resistance to the mix. Lastly, the testing should be framed in the context of protecting the environment and sustainable development as a result of being suggest a functional use for wastes otherwise sent to landfill, while the use of natural raw materials at the same time is limiting.
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