Crushed Glass as Fine Aggregate in Modified Pavements - A Review

The use of waste and recycled materials in road construction applications has many environmental benefits including cost saving in terms of their disposal, dumping and potential recyclability. Examples of waste materials that could be used include waste glass, broken bricks, recycled crushed brick, construction demolition materials, factory waste roof shingles, reclaimed asphalt shingles, cement kiln dust, etc. The need to manage these materials has led to environmentally friendly actions that promote the reuse and recycling of this type of waste. The use of secondary (recycled) materials instead of primary (virgin) materials helps easing landfill pressures and reducing demand of extraction. This article discusses the feasibility on the use of waste materials especially glass waste in pavements, its advantages, environmental impact and cost effectiveness. This is also one way of getting the road construction industry on track towards sustainable construction practices.