Concrete manufacturing

A view of the partially collapsed Morandi highway bridge, in Genoa, Italy, Sunday, Aug. 19, 2018. The unofficial death toll in Tuesday's collapse rose to 43 Saturday. (Luca Zennaro/ANSA via AP)
August 19, 2018 - 2:54 pm
ROME (AP) — The Italian engineer who designed the Genoa bridge that collapsed and killed dozens warned four decades ago that it would require constant maintenance to remove rust given the effects of corrosion from sea air and pollution on the concrete. RAI state television broadcast excerpts Sunday...
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