Concrete jewellery wins 'Red Dot Award'

Mar 21, 2013
"AAA" - the prize winning earrings. Credit: Thomas Hauser, Atelier Allure

The prestigious Red Dot Design Award has been awarded to Viennese jeweller Thomas Hauser, who uses special materials developed at TU Vienna in his pieces.

Still think is a lumpy, coarse and dreary material? It's time to think again. Viennese jeweller Thomas Hauser uses a special sprayed concrete mix developed at the Vienna University of Technology to make his ornate jewellery. He has been awarded the internationally renowned Red Dot Design Award for his 3-ring "AAA" concept made of concrete and palladium.

There's more to concrete...

"Noble concrete" is what Thomas Hauser calls the he uses for his jewellery creations. "Concrete has incredibly beautiful . As a material it can do a lot more than you would think," he says. The first step involves making the main body out of precious palladium metal, before various shades of concrete are added to the design as a second step. "We don't want to lose the distinctive visual appearance of the material. It must not be corrupted but made sure that people still recognize it as concrete. At the same time, the aim is to create attractive and appealing designs – striking this balance is the exciting artistic challenge that we face," explains Thomas Hauser.

Earrings can be made of concrete too. Credit: Thomas Hauser, Atelier Allure

The right mix of concrete

All this has been made possible by a special new mix of concrete developed at the Vienna University of Technology. It is here that construction engineer Johannes Kirnbauer adapts concrete mixes to meet a range of different technical requirements. Depending on the size of the individual in the concrete, the material will have different physical properties and a different visual appearance.

"One major challenge we faced was getting the viscosity of the concrete right," comments Johannes Kirnbauer. "It needs to be sufficiently low to flow well, but also viscous enough to ensure that a sufficiently solid layer adheres to the ring." The concrete block that is sprayed on in several layers is only slightly more than one millimetre thick. The concrete is then glazed and polished at the end of the process. A string of experiments are needed to get the mix of concrete right – a process that is aided by computer simulations.

Lighter than you think

"Many people think that concrete jewellery must be really heavy, but actually it's quite the opposite," says Thomas Hauser. Concrete weighs about 2.3 grams per cubic centimetre – the same volume of gold weighs more than seven times this amount. This means that larger jewellery designs can be made from "noble concrete" too.

Red Dot Design Award

Thomas Hauser's ornate concrete creations have now won him the internationally renowned Red Dot Design Award. This year's competition saw 4662 products from 54 countries entered. In the watches and jewellery category, remarkably , the prize has been awarded to Thomas Hauser's ATELIER ALLURE for the third time in succession. "The jury took a close look and avoided being dazzled by just the bling, and instead looked beyond the sparkle and glitter and used their eyes and hands to look for quality in the jewellery," says Thomas Hauser. The prizegiving ceremony is scheduled to take place in Essen, Germany, on 1 July.

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