Joseph Aspdin was born in Hunslet, Leeds, England, the eldest son of Thomas Aspdin, a bricklayer. His younger brother William also became a bricklayer. When Joseph was about twenty years old he moved to Wakefield and set up business as a bricklayer with his father. Joseph married Mary Stocks on November 25, 1811 at St Mary’s Church in Wakefield and they had seven children.
Joseph Aspdin invented Portland cement in 1824 by calcining finely ground chalk with finely divided clay in a lime kiln until carbon dioxide was given off.
On October 21, 1824 he patented “Portland cement”, the name stemming from its resemblance when set to Portland stone. In 1825 he moved to Rotherhithe, London and set up his first Portland cement factory there. He then moved to Northfleet in Kent to set up another works, near the Thames where he could easily ship his product overseas. In 1841 he returned to Leeds and built another works there on land that had belonged to his brother William and where a former chalk quarry had been used for burning lime for local buildings since about 1770. The second works was at Hill Top near Low Moorsley and operated from 1843 until 1880.
Joseph Aspdin was born in Yorkshire. He was the son of a bricklayer. He moved to Leeds and there set up a laboratory in Hunslet, where he invented Portland Cement, which is still used today to make concrete and mortar.
Joseph Aspdin made his first Portland cement in 1824. He called it Portland cement because he thought it would be like Portland stone which had been used for many years as a building material.
Portland cement is made by heating lime and clay together to 1,450 degrees Celsius (2,642 degrees Fahrenheit) in a kiln. The mixture forms a hard substance called clinker. This is then ground up into a powder and mixed with gypsum to make cement.
Joseph Aspdin was born in Yorkshire, England on November 30th, 1778. He was the eldest of at least seven children born to Thomas and Mary Aspdin. His father was a master mason and later a coal worker, who also worked with lime and marble. It is said that he invented Portland cement in 1824, four years before his death, although there is no proof of it. In order to make cement, he burned ground limestone and clay together in his kitchen stove and ground the mixture into powder. The result was a material that set quickly in the presence of water, making it ideal for fast underwater setting applications. Aspdin named the product portland cement because the concrete made from it looked like Portland stone, a widely-used building stone in England.
Joseph Aspdin was a British cement manufacturer who obtained the patent for Portland cement on 21 October 1824. The invention was made in Leeds, Yorkshire in 1796. Joseph Aspdin’s burning process generated clinkers which were then ground and mixed with gypsum to create a product very similar to modern Portland cement.
Aspdin created a cement by heating powdered limestone mixed with clay in a furnace until it almost fused, and grinding the mixture to a very fine powder that set very rapidly when mixed with water. He called this product “Portland Cement” because of its resemblance to Portland stone, quarried on the Isle of Portland in Dorset, England.
Joseph Aspdin (1778 – 1855) was an English cement manufacturer who obtained the patent for Portland cement on October 21, 1824. The patent was granted on the basis of claiming a chemically superior product, and not on any physical property or superior process.
Portland cement is a hydraulic binder, i.e. it has the property of setting and hardening in water. Portland cement is simply a brand name for ordinary Portland Cement that has been ground finer than ordinary.
Joseph Aspdin lived in Leeds, Yorkshire at the time of his invention and he called his product Portland cement because it looked like the stone quarried on the Isle of Portland in Dorset.
Aspdin produced his first batch of Portland cement on November 21, 1824 using a kiln made from a pear-shaped iron pot lined with fire bricks set in clay. Aspdin’s son William later claimed that his father had used “a kind of hydraulic slag or artificial pozzolana” to make “Roman cement”. This was probably Pozzolana which is a type of volcanic sand from Italy that would react with lime to form a hydraulic mixture. If this were true then Joseph Aspdin’s claim to have made a chemically superior product would have
Joseph Aspdin invented Portland cement in 1824. He had worked for 15 years as a mason and builder, and was then in the trade of turning coal into coke to be used in blast furnaces. To make his cement, he burned finely ground chalk and clay together until the carbon dioxide was removed from the resulting calcium carbonate. He then ground it into a fine powder, which set when mixed with water. Aspdin named his invention “Portland” cement because of its resemblance to Portland stone when set in mortar.
Aspdin received a British patent for the invention in 1824, and began selling it under the name “Portland Cement”, although no one knew at the time that there were Roman ruins on Mount Tabor with similar properties (and a similar appearance).
In 1843 Thomas Aveling invented the steam-powered roller mill and developed it along with Joseph Aspdin’s son William Aspdin (1815-1864). This made possible the production of more consistent mixtures using less fuel, allowing larger scale production of these cements. These cements are usually called Portland Pozzolan cements because they contain a small amount of pozzolanic material added during manufacture.
Joseph Aspdin was an English cement manufacturer who obtained the patent for Portland cement on 21 October 1824.
Aspdin created the first true artificial hydraulic lime by burning finely ground chalk with finely divided clay in a lime kiln until carbon dioxide expelled from the calcium carbonate converted it into calcium oxide, or quicklime. He called this substance Portland cement because he believed the solidified cement produced resembled Portland stone, a widely-used building stone in England. His son William Aspdin had refined the process even further, by forming the clinker from damp slurry and then dry grinding, producing what is now called ‘modern’ or ‘Ordinary Portland Cement’. The name of “Portland” was given due to its similarity in color and quality when it had hardened like Portland stone.