Deck cracks appearing on precast composite slab bridges in Minn.

03/21/2013 | Finance and Commerce (Minneapolis)

The Minnesota Department of Transportation began using the "precast composite slab span system" in 2005 with the goal of quickly building short bridges in rural areas. Now, surface cracks are appearing on those bridge decks more frequently than on conventional bridges. They don't hamper the structural integrity of the bridges but do increase maintenance costs. Now, MinnDOT is adjusting the concrete mix to try to minimize future cracking.

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Finance and Commerce (Minneapolis)

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