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calstar cement

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Green cement company to jump into building market

Cement is everywhere, and it takes a lot of cooking to make. CalStar hopes to cut out the baking part.

By November 15, 2007


Using coal residue to make a greener brick

Since when has a brick company come out of Silicon Valley? Calstar Products is making a brick using coal fly ash that needs 85 percent less energy to produce.

By September 24, 2009