Insider Blog Green Bricks
Posted June 4th, 2007 by adminNASA Tech Briefs INSIDER 06/04/2007
Bricks Made of Power Plant Waste Enable “Green” Construction
Each year, 25 million tons of fly ash are recycled, generally as additives in building materials such as concrete, but 45 million tons go to waste. Fly ash bricks find a use for some of that waste and counter the environmental impact from the high-temperature kiln manufacture of standard bricks.
Once colored and shaped, the bricks are similar to their clay counterparts in both appearance and in meeting or exceeding construction-material standards. Supported by NSF’s Small Business Innovation Research (SBIR) program, FPC made fly ash bricks more durable by engineering them to resist freezing and thawing due to weather. A second-phase SBIR award will test the brick material’s safety and prepare it for market.
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