In 2024, Arizona used foam made from 100% recycled glass at 19 sites while widening 23 miles of I-17; the lightweight fill helped culverts built for two lanes support added lanes
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September 7, 2026
I-17 Improvement Project using foam glass aggregate as a new innovative construction material Engineers in Arizona have used an unusual material to expand a major interstate: tens of thousands of tonnes of crushed recycled glass. During the expansion of…