Joseph Aspdin Patented Portland Cement in 1824

English bricklayer Joseph Aspdin was granted a patent for a method of producing artificial stone on October 21, 1824. In the patent, he called the material Portland cement.

The name referred to Portland stone: the mortar made using Aspdin’s method resembled it. The patent described a cement for plastering buildings and other structures. However, according to the source, the document itself does not describe Portland cement as understood today.

Image: Reid, Henry Public domain

Translation editor: Ловушкин А.