Follow us on Twitter      

Latest News


Keyword Search

RegionB

North / South America

Creating eco-friendly cement

Apr, 23 2012


(Pennsylvania) -- Researchers at Drexel University are trying to lower cement’s carbon footprint by using technology of the past to build sidewalks the future. It is the same technique that was used by the Greeks to build the Parthenon and the Egyptians for building the Great pyramids, so it make sense that it uses less energy.

To make today’s cement, you need a large mining operation, an intensive grinding operation and a huge kiln – fired up at 2700 degrees Farenheit. That’s a lot of energy and a lot of emissions.

Drexel’s method eliminates most of the mining and gets rid of the heat. They use limestone and leftover slag from steel mills to make a product with 10% of the emissions of normal cement.

And this could have a big impact: China alone is using more than 1.5 gigatons every year of cement– enough to make 2000 Pentagons.

By: Susanna, PF Web Maven
Source:

See video here:

Bookmark and Share
Comments
0 Comment(s)
Add Your Comments


Heidelberg Cement strengthens financing

HeidelbergCement has taken further important steps to strengthen its financing in completing the disposal of its lime business in Germany to the Belgian Lhoist Group. More

Swedish research on cold mix asphalt

Researchers at the Swedish National Road and Transport Research Institute show using cold mix asphalt concrete instead of traditional warm mix asphalt concrete is an effective way of reducing environmental impact. More

Advertise Here