03-29-2014, 07:47 AM
Ordinary Portland cement is the binding agent in concrete. It is a hydraulic cement that, when combined with water, hardens into a solid mass. As a material, OPC has been used for well over 175 years .
In 1824, Joseph Aspdin, a Leeds mason took out a patent on a hydraulic cement that he coined "Portland" cement (Mindess and Young, 1981). He named the cement because it produced a concrete that resembled the color of the natural limestone quarried on the Isle of Portland, a peninsula in the English Channel.
In 1824, Joseph Aspdin, a Leeds mason took out a patent on a hydraulic cement that he coined "Portland" cement (Mindess and Young, 1981). He named the cement because it produced a concrete that resembled the color of the natural limestone quarried on the Isle of Portland, a peninsula in the English Channel.