Roman Concrete!

Interesting!

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The info about the greenhouse gasses was interesting as well.

The only modern-day concrete that is going to last as long as Roman, is the batch that Jimmy Hoffa is buried in.

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“Cement production reportedly accounts some roughly 8 percent of greenhouse gases.”

Cement or concrete? I doubt the author knows the difference.

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I agree. A lot of people think they are one in the same. Since it is a chemical, it might be what is causing the problem and he does know. At the same time, is it the cement that makes concrete dust a carcinogen?

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Good thread Robert. Years ago I read how pozzolanic ash defined the durability of what was referred to as Roman concrete.

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