Why does concrete swell and crack?

Unfortunately, concrete does not last forever. The ravages of time also take their toll on concrete structures in Switzerland. Not only are reinforced structures like bridges affected, but also concrete buildings without ...

New laser scanning test to assess fire-damaged concrete

Engineering research at The University of Nottingham, UK and Ningbo, China (UNNC) has found laser scanning is a new and viable structural safety technique to detect the damaging effects of fire on concrete.

Polymers render concrete fire-resistant

Self-compacting high-performance concrete (SCHPC) has till now suffered from one weakness – when exposed to fire it flakes and splits, which reduces its loadbearing capacity. Empa scientists have now developed a method ...

Structure of 'concrete disease' solved

When bridges, dam walls and other structures made of concrete are streaked with dark cracks after a few decades, the culprit is AAR: the alkali-aggregate reaction. AAR damages concrete structures all over the world and makes ...

Los Angeles proposes sweeping upgrades for quakes (Update)

Mayor Eric Garcetti on Monday proposed spending billions of dollars to better protect Los Angeles against a devastating earthquake by strengthening thousands of vulnerable older buildings and fortifying the city's water and ...

The inflatable concrete dome

A completely new way of building concrete structures has been developed: Scientists at the Vienna University of Technology bend concrete with an air cushion, making complicated timber structures obsolete. The new method has ...

Concrete which can heal its own cracks

Cardiff University researcher Dr Diane Gardner has won the 'You Heard It Here First' event at the British Science Festival for her work on self-healing concrete. The award considers the UK's brightest early career researchers ...

The flip side of salting winter roads

Swedish scientists have studied models to help road and bridge maintenance engineers work out how much damage salting the roads in winter might cause to steel-reinforced concrete structures.

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