Concrete is an innovation of the early 20th century and its development completely transformed the way we built. Recently, it has received bad press because it is extremely energy hungry in its production. However, new developments in concrete not only result in big reductions in the use of energy and resources, they also offer new design opportunities.
Until now the application of concrete was characterised by big structures, because the walls needed a minimum thickness to be stable. With the introduction of high density concrete very different results and application can be achieved.
The new high density concrete called Quantz is a cement bonded high tech material. The production process combines computer power, which allows for the use of a novel optimization algorithms withthe latest developments in nanotechnology. The production process can be adjusted to use local raw materials, which cuts out often highly polluting transport. In comparison to traditional concrete the proportion of cement is reduced by 40%. The material is denser and the structures much thinner which leads to a reduction of the material costs of up to 35%. Due to its high density Quantz also offers the advantages of higher rigidity, resistance and durability.
One of the first designers to work with this material is Hamburg based Alexa Lixfeld. She applies a special coating to the high density concrete and creates filigree designs for kitchens and bathrooms. The surfaces are glossy, abrasion- and acid-resistant, food safe, and hydrophobic.
Doreen Westphal uses the materials to create wall murals and Gregor Zimmermann uses it in furniture design.
Text provided Dr. Sascha Peters, Berlin – www.saschapeters.com
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