News tagged with concrete bridges

C2D2 fighting corrosion

Bridges become an infrastructure problem as they get older, as de-icing salt and carbon dioxide gradually destroy the reinforced concrete. A new robot can now check the condition of these structures, even ...

Aug 22, 2014 4 / 5 (1) 0

Vibrations reveal state of bridge ropes

The new ResoBridge method has been developed to check bridges during running traffic within one day. It measures the vibrations of the tensioning ropes of externally prestressed concrete bridges. The test ...

Jan 10, 2014 5 / 5 (4) 0

Balsa bridges, with a twist

(Phys.org)—How much weight can a bridge made of balsa wood carry? When encased in a layer of fiber-reinforced resin, much more than you would expect, say engineers from EPFL. On October 12th, a composite ...

Oct 19, 2012 4.3 / 5 (6) 0 | with audio podcast

Tracking down rust

(PhysOrg.com) -- Damage to concrete bridges caused by rust can have fatal consequences, at worst leading to a total collapse. Now, researchers have developed an early-warning system for rust. Sensor-transponders ...

Apr 05, 2010 4 / 5 (1) 0
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