Portland cement

The cement was so named by Joseph Aspdin, who obtained a patent for it in 1824, because, once hardened, it resembled the fine, pale limestone known as Portland stone, quarried from the windswept cliffs of the Isle of Portland in Dorset. Portland stone was prized for centuries in British architecture and used in iconic structures such as St Paul's Cathedral and the British Museum.
His son William Aspdin is regarded as the inventor of "modern" Portland cement due to his developments in the 1840s.
The low cost and widespread availability of the limestone, shales, and other naturally occurring materials used in Portland cement make it a relatively cheap building material. At 4.4 billion tons manufactured (in 2023), Portland cement ranks third in the list (by mass) of manufactured materials, outranked only by sand and gravel. These two are combined, with water, to make the most manufactured material, concrete. This is Portland cement's most common use. Provided by Wikipedia
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