17 Facts About Portland cement

Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout.

Low cost and widespread availability of the limestone, shales, and other naturally-occurring materials used in portland cement make it one of the lowest-cost materials widely used over the last century.

Concrete produced from Portland cement is one of the world's most versatile construction materials, and has changed the world in almost every observable aspect.

Portland cement was developed from natural cements made in Britain beginning in the middle of the 18th century.

Development of modern portland cement began in 1756, when John Smeaton experimented with combinations of different limestones and additives, including trass and pozzolanas, relating to the planned construction of a lighthouse, now known as Smeaton's Tower.

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Roman cement quickly became popular, but was largely replaced by portland cement in the 1850s.

Vicat's cement is an artificial hydraulic lime, and is considered the "principal forerunner" of portland cement.

Name portland cement is recorded in a directory published in 1823 being associated with a William Lockwood and possibly others.

Portland cement had been imported into the United States from Germany and England, and in the 1870s and 1880s, it was being produced by Eagle Portland cement near Kalamazoo, Michigan.

In 1875, the first portland cement was produced in the Coplay Cement Company Kilns under the direction of David O Saylor in Coplay, Pennsylvania.

Hydraulic Portland cement produced by pulverizing clinkers which consist essentially of hydraulic calcium silicates, usually containing one or more of the forms of calcium sulfate as an inter ground addition.

Materials in Portland cement clinker are alite, belite, tricalcium aluminate, and tetracalcium alumino ferrite.

The Portland cement is conveyed by belt or powder pump to a silo for storage.

The Portland cement is delivered to end users either in bags, or as bulk powder blown from a pressure vehicle into the customer's silo.

Bags of Portland cement routinely have health and safety warnings printed on them, because not only is Portland cement highly alkaline, but the setting process is exothermic.

Equipment to reduce dust emissions during quarrying and manufacture of Portland cement is widely used, and equipment to trap and separate exhaust gases are coming into increased use.

Portland cement manufacture has the potential to benefit from using industrial byproducts from the waste stream.