Fly Ash Bricks

CalStar has developed production technology to produce bricks and pavers from the waste of coal burning, from fly ash. The method they use needs 85% less energy to produce than in case of a traditional clay brick. The released CO2 emmision during the production is 90% less. The performance of the Fly Ash Brick is as good as the traditional bricks and its price is competitive with it too. So this could be a really good replacement of an energy consuming technology.

Videos about the production and its benefits are at CalStar's website: here. And at SmartPlanet: here.