<p>Waste is defined as materials resulting from human or industrial activities that have no value. Recycling is considered a sustainable solution to help preserve the environment, as materials such as glass, plastic, rubber, etc. will be reused, rather than disposed in landfills. In recent years, the amount of glass has increased as a result of the increase in manufacturing processes and better living conditions. However, large amounts of waste glass (WG) are not recycled, but rather dumped in nature, creating environmental problems. Recycling helps to lower the cost of both using raw materials and establishing landfills to reduce pollution. An overview of the effect of adding WG to asphalt mixtures is provided in this study. There have been several studies on the impact of using different percentages of WG on the performance of asphalt mixtures. These studies have shown that the use of WG improves the properties of asphalt mixtures such as flow, stability, and voids in mineral aggregate (VMA). Additionally, WG increases the mixture’s resistance to rutting, fatigue, moisture damage, deformation, and shear. As a result, many scientists have concluded that the use of WG is acceptable in asphalt mixtures. However, air voids (VA), VMA, and bulk density decrease when the ratio of crushed WG is increased. It is also concluded that adding WG improves the dynamic properties of asphalt mixtures, but there was no effect on the tensile strength. Moreover, adding nanotechnology zycosoil as an anti-stripping agent will enhance the mechanical properties and moisture sensitivity of a “glasphalt” mixture. In general, using WG in pavement construction reduces waste in the environment.</p>

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Effect of Waste Glass on Properties of Asphalt Mixture: State of the Art

  • Taisir Khedaywi,
  • Madhar Haddad,
  • Nour AL-Huda Khaldi

摘要

Waste is defined as materials resulting from human or industrial activities that have no value. Recycling is considered a sustainable solution to help preserve the environment, as materials such as glass, plastic, rubber, etc. will be reused, rather than disposed in landfills. In recent years, the amount of glass has increased as a result of the increase in manufacturing processes and better living conditions. However, large amounts of waste glass (WG) are not recycled, but rather dumped in nature, creating environmental problems. Recycling helps to lower the cost of both using raw materials and establishing landfills to reduce pollution. An overview of the effect of adding WG to asphalt mixtures is provided in this study. There have been several studies on the impact of using different percentages of WG on the performance of asphalt mixtures. These studies have shown that the use of WG improves the properties of asphalt mixtures such as flow, stability, and voids in mineral aggregate (VMA). Additionally, WG increases the mixture’s resistance to rutting, fatigue, moisture damage, deformation, and shear. As a result, many scientists have concluded that the use of WG is acceptable in asphalt mixtures. However, air voids (VA), VMA, and bulk density decrease when the ratio of crushed WG is increased. It is also concluded that adding WG improves the dynamic properties of asphalt mixtures, but there was no effect on the tensile strength. Moreover, adding nanotechnology zycosoil as an anti-stripping agent will enhance the mechanical properties and moisture sensitivity of a “glasphalt” mixture. In general, using WG in pavement construction reduces waste in the environment.