Category News
Author: Manufacturer, posted on
A company in the North American country produces concrete with the inclusion of steel slag. Thus, they avoid the high carbon dioxide levels of cement.
Without a doubt, concrete is one of the most used inputs in construction worldwide. Each house, building, bridge, tunnel, road and industrial work presents this material as essential in its composition.
Despite the high production of concrete, it continues to be one of the materials with the greatest impact on global greenhouse gas emissions. In fact, some statistics indicate that this preparation produces 8% of the total in the world.
Cement is one of the main components of concrete and is named as the chemical responsible for the contamination.
The key is in the production of cement. In this process, a mixture of limestone and clay is heated to over 1,400 degrees Celsius in a kiln, which uses a lot of fossil fuels.
According to an article published by Imperial College London, up to 622 kg of carbon dioxide are emitted for each tonne of Portland cement manufactured. This means around 3,500 million tons of global production of this material in one year.
Innovation: producing without cement
Concrete is a constant analytical material in institutes, universities and scientists around the world. One of the ideas that has been raised is to produce concrete without the need to use cement.
Carbicrete, a Canadian industrial concrete manufacturing company, has devised an alternative by replacing cement with steel slag.
“It’s cheaper, it’s greener and it has the same, if not better, properties than cinder blocks,” Mehrdad Mahoutian, co-founder of Carbicrete, told Nature magazine.
From the company, they assured that in addition to removing carbon dioxide from production, they capture additional CO₂ and store it.
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