Portland Cement in a sentence

However, Aspdins' cement was nothing like modern Portland cement but was a first step in its development, called a proto-Portland cement.

Portland cement main Portland cement is by far the most common type of cement in general use around the world.

James Frost is reported to have erected a manufactory for making of an artificial cement in 1826. citation In 1843, Aspdin's son William improved their cement, which was initially called "Patent Portland cement", although he had no patent.

Its production requirements are less energy-intensive than ordinary Portland cement (at a heating requirement of around 650 °C for talc compared to 1500 °C for limestone to produce Portland cement), while it absorbs far more carbon dioxide as it hardens.

Modern cements are often Portland cement or Portland cement blends, but other cements are used in industry.

Print. By the early 20th century American-made Portland cement had displaced most of the imported Portland cement.

This cement was made at the Portland Cementfabrik Stern at Stettin, which was the first to use a Hoffman kiln. citation It is thought that the first modern Portland cement was made there.

Chemical analysis of the fine aggregate indicates that it is also suitable as a raw material for the production of lime cement or Portland cement if properly processed and blended with suitable silica aluminates.

As with type IV, type V Portland cement has mainly been supplanted by the use of ordinary cement with added ground granulated blast furnace slag or tertiary blended cements containing slag and fly ash.

Because of similar price to that of type I, type II is much used as a general purpose cement, and the majority of Portland cement sold in North America meets this specification.

Both are based on McAdam's concept of stone aggregate in a binder, asphalt cement or Portland cement respectively.

But in the early 1930s it was discovered that, while Portland cement had a faster setting time it was not as durable, especially for highways, to the point that some states stopped building highways and roads with cement.

EN 197 EN 197-1 defines five classes of common cement that comprise Portland cement as a main constituent.

In the US, the long curing time of at least a month for Rosendale cement made it unpopular after World War One in the construction of highways and bridges and many states and construction firms turned to the use of Portland cement.

Portland cement is also used in mortars (with sand and water only) for plasters and screeds, and in grouts (cement/water mixes squeezed into gaps to consolidate foundations, road-beds, etc.).

The contractor's guide to quality concrete construction. 3rd ed. St. Louis, MO: American Society of Concrete Contractors ;, 2005. 17. Print. Type I Portland cement is known as common or general-purpose cement.

The first cement to consistently contain alite was made by William Aspdin in the early 1840s: This was what we call today "modern" Portland cement.

The resulting hard substance, called 'clinker', is then ground with a small amount of gypsum into a powder to make 'Ordinary Portland Cement', the most commonly used type of cement (often referred to as OPC).

Vicat went on to devise a method of combining chalk and clay into an intimate mixture, and, burning this, produced an "artificial cement" in 1817 citation considered the "principal forerunner" of Portland cement and ".

William Aspdin had left his father's company and in his cement manufacturing apparently accidentally produced calcium silicates in the 1840s, a middle step in the development of Portland cement.