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A 1000-foot stretch highway in Oroville, CA was recently repaved with recycled plastic and asphalt—the first time a state department has paved a road with 100% recycled materials. This durable recycled material can combat potholes, last two to three times longer than asphalt roads, and reuse about 150,000 single-use plastic bottles per mile.
A New Way to Pave: Road paving typically produces a massive amount of waste. Repaving a mile of a single-lane road, even using recycled asphalt, uses 42 truckloads of new material and produces 42 tons of waste. California already uses recycled asphalt for its roads, but the process relies on the petroleum industry— these roads require bitumen, a black sludge produced by oil refining.
Instead, this new plastic-asphalt can be formulated out of only recycled material. It’s synthesized out of 3 inches of old pavement and a liquid plastic polymer binder made up of recycled PET plastic, the plastic typically used in plastic bottles. Then the plastic-asphalt can be placed on the road.
Not only does this new paving process utilize recycled materials, but it also creates a road that can last two or three times as long as traditional asphalt according to tests. This allows CalTrans to use less building material and send fewer trucks to its paving sites, cutting back greenhouse gas emissions.
Los Angeles has already begun a pilot to use this type of pavement and if the road in Oroville performs well it could become a model for other cities within California and across the nation to emulate.
Will this Solve California’s Plastic Pollution Crisis?
Californians used over 12 billion single-use plastic bottles in 2017, and millions of pounds of plastic litter the state’s highways, landfills, and oceans. Paving recycled plastic-asphalt roads is one of many initiatives California has implemented to curb plastic pollution. The most famous example is California’s “Bottle Bill” — a bill which allowed roughly 80% of the state’s eligible materials to be recycled.
Because of this, some skeptics think that California doesn’t need another way to recycle PET (#1) plastic, which is already the most commonly recycled. “Instead, an asphalt process that used other types of plastics — like #3, #4 or #5, which have very low rates of recycling — would be a better fit,” Mark Murray, executive director of Californians Against Waste, told Enterprise-Record.
Why This Matters: While fishing gear that is in use is a threat to marine life like whales, abandoned fishing gear is just a tragedy waiting to happen and completely needless — eliminating it is totally within our control.
As nations across the world work to address the plastic pollution crisis–especially in the wake of the COVID-19 pandemic–Canada made a big step in its effort to control needless plastic waste. As CNN reported, “The country plans to ban single-use plastics — checkout bags, straws, stir sticks, six-pack rings, cutlery and even foodware made from […]
The second-hand clothes trade ensures that abandoned clothes don’t pile up in landfills, and at the same time, makes it possible for the fashion industry to introduce new designs for each new season. However, Reuters reports that this system has slowed to a stop as a result of the COVID-19 pandemic.
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