Carbon Negative Cement by Novacem

Material ConneXion, a global materials consultancy, recently gave its material of the year award to Novacem for the company’s “carbon negative” cement.  The product is being touted with increasing frequency and — it would seem from the literature — has the potential to change the world of concrete in 2014-15 when it hits the market.

One impressive aspect of Novacem cement is that it’s supposed to perform at the same level as commonly used Portland Cement.  It’s also supposed to cost about the same.

Novacem cement is made using a magnesium silicate mixture instead of calcium carbonates, according to Material ConneXion.  Also, the low-energy production process allows for the use of biomass as a fuel.

But what sets it apart from all of the competition, including slag and fly ash varieties of cement, is the fact that “the creation of magnesium carbonates from magnesium silicates involves absorption of CO2,” according to Novacem.  Thus, the production process is carbon negative.

Novacem is a London-based company and its cement is not currently available for purchase.  You can follow the company here.

Credit: Novacem.

  • brute force collaborative

    carbon negative, or carbon reducing? i’m assuming they’re not taking into account the CO2 released in the harvesting of sand, aggregate, transportation, etc.

    • ctech

      I think they are; take a look at the website and see what they are claiming.

  • rain5hadow

    Does the CO2 escape over time? Would this material be safe for use in all dwellings? This seems a wonderful product.

  • Clinton

    My wildest though is to freeze CO2 into building blocks and use them for construction…

  • Dan

    Haven’t the Chinese been doing this for a while?

  • nan

    Sweet! Concrete is one of the biggest environmental problems in building.

  • JGS

    Wait, isn’t it the extra CO2 that we are now blaming for it getting colder here in the US. So if this takes away CO2, are we now wanting it to get warmer. I am getting so confused because no matter what we do, it seems we impact the environment.

    • Kevin Matthews

      “…No matter what we do, it seems we impact the environment.”

      Yup. Sounds like you’re actually starting to get it.

  • bldr

    Concrete is one of the biggest environmental problems in building?

  • Jesse Pender

    I’ll definitely be watching this product. Thanks for posting. I hope it turns out to be as good as it sounds.

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