Portland cement

or portland cement

noun

1. a type of hydraulic cement usually made by burning a mixture of limestone and clay in a kiln.

Portland cement

noun

1. a cement that hardens under water and is made by heating a slurry of clay and crushed chalk or limestone to clinker in a kiln

Word History and Origins

Origin of Portland cement¹

First recorded in 1815–25; named after the Isle of Portland, Dorsetshire, England

Word History and Origins

Origin of Portland cement¹

C19: named after the Isle of Portland , because its colour resembles that of the stone quarried there

Example Sentences

A 1924 issue of Concrete magazine said that the operation at 1000 La Brea Ave. appeared to be “the pioneer mixing plant in the West,” the first of its kind offering “ready-mixed Portland cement concrete in quantities sufficient for a flagpole foundation or a 12-story building, and delivered right on the job when required.”

From Los Angeles Times

The BBC was present when the first high grade, or “Portland”, cement was produced.

From BBC

Cement stucco is just a mixture of fine sand, Portland cement, a dash of hydrated lime and clear water.

From Seattle Times

You mix pure Portland cement with water until it has the consistency of paint.

From Seattle Times

I’m currently working with the Portland Cement Association and its scientists to prove that this method of pouring concrete is perhaps the worst way to do it.

From Seattle Times