via MIT NEWS

Adding bits of irradiated plastic water bottles could cut cement industry’s carbon emissions.

MIT undergraduate students have found that, by exposing plastic flakes to small, harmless doses of gamma radiation, then pulverizing the flakes into a fine powder, they can mix the plastic with cement paste to produce concrete that is up to 20 percent stronger than conventional concrete.

Read the full story here: http://news.mit.edu/2017/fortify-concrete-adding-recycled-plastic-1025