‘Plastic roads’ are paved with good intention

December 26th, 2022

Transportation officials in multiple states are testing whether roads made from grocery bags, juice cartons, printer ink cartridges or other discarded plastic can make pavement last longer, save money and reduce the amount of waste that ends up in landfills. Pennsylvania Department of Transportation contract workers lay pavement made partially with recycled plastic at Ridley […]

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Geogrid durability and cement

October 1st, 2022

Q: I am searching for data or specifications pertaining to long-term degradation resistance of geogrid exposures to cement—more specifically, cement-treated soils. Your assistance would be greatly appreciated.  A: Thank you for your question on geogrid durability in the presence of cement. This is not an issue for most polyolfin (polypropylene [PP] and polyethylene [PE]) geogrids. […]

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