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New kind of cement absorbs pollution May 19, 2006

Posted by cbeech in Science.
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An Italian company has begun marketing a cement that is capable of absorbing pollution from vehicles.

Italcementi, which spent 10 years developing its TX Active, said the building material is capable of reducing urban pollution by more than 40 percent, the Italian news agency ANSA reported Tuesday.

It functions via a chemical process called photocatalysis, whereby sunlight triggers a chemical reaction when titanium dioxide on the surface of the cement comes into contact with pollutants in the air. TX Active works most effectively in bright sunlight.

Italcementi said test results have been verified by independent bodies like the National Research Council.

http://www.physorg.com/news67012896.html

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