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Can Concrete Be Sustainable?

June 13, 2013 by · Leave a Comment 

By Matt Baker

concrete_1Concrete, industry proponents will tell you, is one of the most sustainable building materials on the market. It is incredibly durable, made from abundant materials, has a low thermal transmittance and it is recyclable. All of these are true. Unfortunately, it is also an enormous source of carbon dioxide emissions.

Cement, to be precise, is the real culprit. Portland cement typically composes a little more than 10% of concrete’s volume, but 90% of its carbon footprint. Given how ubiquitous concrete is as a building material, something needs to be done to lower these emissions.
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