News tagged with concrete

Why not recycled concrete?

From paper towels to cups to plastic bottles, products made from recycled materials permeate our lives. One notable exception is building materials. Why can't we recycle concrete from our deteriorating infrastructure for ...

date17 hours ago in Engineering
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Riddle of cement's structure is finally solved

Concrete is the world's most widely used construction material, so abundant that its production is one of the leading sources of greenhouse gas emissions. Yet answers to some fundamental questions about the microscopic structure ...

date19 hours ago in Engineering
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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 ...

dateJan 06, 2016 in Engineering
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Thin walls with potentially fatal consequences

Given the choice between safer and cheaper construction, many housing design companies in earthquake-prone developing countries see themselves forced to save on expensive construction materials and opt for the latter. EPFL ...

dateNov 06, 2015 in Engineering
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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 ...

dateNov 05, 2015 in Engineering
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