Cigarette butts enhance asphalt performance

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We have recently seen a variety of new materials created from what was once garbage, including a coffee cup made from coffee waste and sand created from recycled beer bottles. Cigarette butts are another very common item of trash. Around six trillion cigarette butts are produced every year worldwide. Many of these end up tossed onto the ground where they take years to break down, while they release toxic chemicals into parks, rivers and the ocean. What if, instead of littering roads and sidewalks, cigarette butts could be used to create them? This is the question tackled by the Royal Melbourne Institute of Technology (RMIT) senior lecturer Dr Abbas Mohajerani and his team.

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