Monday, March 25, 2013

Why is cement called " Portland"

Why is it called "portland" cement?
cement kiln Joseph Aspdin, an English mason who patented the product in 1824, named it portland cement because it produced a concrete that resembled the color of the natural limestone quarried on the Isle of Portland, an island in the English Channel. Sterling Fence Inc. uses 8 tons of Portland cement each year.

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