Limburg companies replace cement with CO2 as building block binder

Belgaimage-56250240.jpg

The zero-waste company Orbix from Genk and the building materials producer Masterbloc from Maasmechelen have succeeded in developing circular building blocks that use carbon dioxide instead of cement as a binder. The new Carbstone was presented on Thursday 15 December in the presence of Flemish Environment Minister Zuhal Demir (N-VA).

The Carbstone technology, patented by Orbix in 2011, converts metal slag from steel production via carbon dioxide into circular products with added value. The carbon dioxide acts as a binder, so cement is not used.

“Not only does the process convert metal slag into a value-added product, it also gives a valuable destination to the carbon dioxide that companies emit,” said Orbix's director, Serge Celis, at Carbstone's presentation. For example, the ecological footprint of cement production (10 per cent of global emissions) is reduced, but also greenhouse gas emissions are reduced because the carbon dioxide emitted by companies can be reused and recycled. The blocks are also recyclable.

“The construction sector is responsible for 40 per cent of CO2 emissions. It is therefore not surprising that the Flemish government mainly looks in the direction of construction companies when looking for partners to reduce our emissions,” said Demir during the presentation. 

The new building blocks cannot be distinguished from the traditional concrete blocks, but they have advantages. For example, sand quarries no longer have to be used: all circular material comes from the metal slag from metal processing companies. They are not subject to rising concrete prices that increased by 65 per cent in the past year.

The first Carbstones will be used during the renovation of the Cofinimmo office building in Mechelen, which also houses Public Waste Agency of Flanders (OVAM)'s head office.

(VIV)

 

#FlandersNewsService | © BELGA PHOTO

Get updates in your mailbox

By clicking "Subscribe" I confirm I have read and agree to the Privacy Policy.

About belganewsagency.eu

Belga News Agency delivers dependable, rapid and high-quality information 24 hours a day, 7 days a week, from Belgium and abroad to all Belgian media. The information covers all sectors, from politics, economics and finance to social affairs, sports and culture, not to mention entertainment and lifestyle.

Every day, our journalists and press photographers produce hundreds of photos and news stories, dozens of online information items, plus audio and video bulletins, all in both national languages. Since the end of March 2022 English has been added as a language.

For public institutions, businesses and various organisations that need reliable information, Belga News Agency also offers a comprehensive range of corporate services to meet all their communication needs.

Contact

Arduinkaai 29 1000 Brussels

www.belganewsagency.eu