1788, Dec1855, Mar 20
an English cement manufacturer who obtained the patent for Portland cement on 21 October 1824. Aspdin called the product Portland cement because set mortar made from it resembled “the best Portland stone". Portland stone was the most prestigious building stone in use in England at the time. The patent clearly does not describe the product recognised as Portland cement today. The product was aimed at the market for stuccos and architectural pre-cast mouldings, for which a fast-setting, low-strength cement was required .
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10/21/1824-Joseph Aspdin patents Portland cement (Yorkshire England)
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