Torsten Schinkel


THE INVISIBLE INDUSTRY. The industrial goods industry operates more or less invisibly. That is a shame because it is so incredibly multi-faceted. The industry manufactures products of essential importance and the logistics, due to the sheer dimensions involved, are an exciting project in itself. A shining example of this is the aerated concrete block YTONG – a brand that has a concrete meaning in everyone's mind – not just those in the construction industry.

YTONG was already an ecological construction material before this term even existed. The material is natural, the resource inexhaustible, economical, light, insulating and long-lasting. The energy-efficient production takes place within a closed cycle. The precise processing results in hardly any waste, and the packaging is absolute genius in its simplicity. YTONG was invented in Sweden in the 1920s, and at that time it was called Yxhults ånghärdade gasbetong – steam hardened gas concrete. The production of the material was similar to baking a cake: You take quartz sand, limestone, cement, all of which have been ground to be as fine as flour, and a pinch of aluminium salt as a raising agent which swells the mass with small bubbles. Once the material has set, the semi-solid blocks are exactly cut to size and are then hardened under steam at 190°C.


Correct: Bright yellow. The aerated concrete wall blocks have probably also become a synonym for this construction material because of its packaging – brand management and branding are also worth it even in the industrial goods sector! The blocks have been packaged in their signal-yellow packaging since 1967. Thanks to recycling and the return of the yellow film packaging and PE/PP plastic, XELLA was able to reduce its carbon footprint by 444 tonnes in 2013 – which according to the German environmental organisation "Schutzgemeinschaft deutscher Wald", corresponds to the weight of 6,094 apple trees.
The blocks which have been cut to blocks are placed in the autoclaves in order to harden. When the blocks are then removed from the pressure containers 12 hours later, they have been transformed into
The bright yellow packaging and the product itself have become one in the perceptions of everyone around the world.
Prior to hardening though, YTONG blocks are as soft as yeast dough. After hardening they are as stable as concrete and as easy to cut as wood and are similar to the natural mineral tobermorite.
Yearly, several million cubic metres of YTONG aerated concrete are produced.
The production of the YTONG aerated concrete is similar to baking a cake: In these forms, the "dough" rises and develops its insulating air pockets in this way.
A single Ytong plan block of 62.5 cm length, 25 cm height and 25 cm thickness weighs just 15 kg. In order that it can be moved on the construction site from only one worker, it is equipped with grippi
The yellow film packaging protects the YTONG blocks from becoming dirty during transport. The packaging is of course a part of the recycling programme.
Aerated concrete is actually not concrete in the exact sense of the word; it is instead a steam-hardened construction material that primarily consists of minerals and natural raw materials such as lim
The name YTONG was already registered in the trademark register as a description for aerated concrete from Yxhult in Southern Sweden as far back as 1940, and has been packaged in yellow film since 196
After the mixture has risen and has achieved a half-set consistency, it is removed from the form and cleaned.
YTONG is present across the globe. The company group operates a total of 98 factories in 20 countries and has sales organisations active in a total of roughly 30 countries.
Constant quality controls during the entire production process are massively important at YTONG.

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