Mecalithe® in Concrete saves 1.5 billion tonnes of CO2
Production of cement supplies 3.5 billion tons of CO2 worldwide. The production of cement is bad for our milieu. Therefore MGX Group developed Houton, concrete made with wood-dust and reinforced it with Mecalithe®.
The admixture for concrete Mecalithe® is intended for the (prefab) concrete industry. This additive can be used as a hardening accelerator and makes it possible to considerably increase the final strength by about 30%.
Thanks to Mecalithe, concrete can be made with 30 to 40% less cement, a savings of 1.5 billion tonnes of CO2 (when 100% cement is used).
What’s the secret?
Cement has hardly any fibers and therefore a tensile strength of nothing. Because of that steel must be used to reinforce the concreet.
Mecalithe forms tiny needles in the concrete. Now concrete strenghtenens itself. This process is fast, concrete can be lifted quicker out of its formwork.
Director Mollink – MBI (concreet industry) started a pilot with founder Peter van Bakel – MGX / Suston – an agency that investigates new “concrete” concepts. This pilot showed that Mecalithe needed less cement and still yielded stronger concrete.
The ‘green concrete’ is extremely strong, and remains perfect in roads with a lot of traffic, when it freezes, and must withstand salt. The potential is enormous.
Cement is not only expensive, but also harmful to the environment, because cement must be heated to high temperatures, making it responsible for over 5% of CO2 emissions worldwide.
Less cement in concrete translates into fewer greenhouse gases.
Inventor of the Mecalithe is Youva Raj Tyagi, professor concrete technique at the Caledonian University in Glasgow.
MGX / Suston exports to the Netherlands, England, Germany and France but the production can be made by companies worldwide in license.
If Geopolymers are added to the cement, this will reduce CO2 emissions during the cement production by 80%.
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