From toilets to roads — concrete from the potty

It's "poticrete," actually, the name given an aggregate mix the city of Bellingham, Wash., used for a paved trail project -- a big portion of the aggregate is made of crushed toilets, sinks and other porcelain bathroom fixtures. The mixture is notablein that it marks the first "LEED-style certification," Christopher Mims wrote on thegrist.org, for something resembling a roadway. (The folks at the Greenroads Foundation designated the Poticrete trail its first certified Greenroad.) And I imagine it might ...

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