cement Archives – The Green Optimistic

CO2 Capturing System to be Installed at Norwegian Cement Factory

Ovidiu Sandru — Fri, 17 May 2013 12:57:45 +0000

A new and innovative CO2 capturing system is to be installed in Norway, at a Norcem cement producing plant in Brevik. Developed by Aker Solutions, the carbon capturing system is the first in the world to do this at a cement station. While most of today’s efforts only focus on capturing emissions resulted from coal-fired […]

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Drexel Scientists Invent Greener Alkali-Activated Cement

Ovidiu Sandru — Fri, 24 Feb 2012 01:14:21 +0000

Although it’s being used since the late 1800s, the Portland cement (OPC) is guilty for a large amount of carbon dioxide spewed in the atmosphere by its manuacturers. The latest recipe comes from Drexel and uses an industrial byproduct to make the cement greener. The byproduct is called slag. It and limestone, a common mineral, […]

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Rice Husks Making Cement Become Less Of a Polluter

Ovidiu Sandru — Wed, 14 Apr 2010 13:03:27 +0000

Cement is made by heating limestone with clay at high temperatures, and is responsible for 5 percent of the global carbon dioxide emissions, with a ton of CO2 released for every ton of cement produced. To reduce that figure, a team of researchers from the University of Dundee in UK, developed an environmentally-friendly cement made of waste organic materials, such as rice husks.

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