What is Portland Cement?

Portland Cement is a hydraulic cement mainly composed of calcium silicates. Hydraulic cements, as the term itself indicates, set and harden when they chemically react with water. During this reaction, which is called hydration, cement combines with water to make a paste which has an aspect that resembles rock. When this paste is added to gravel and sand, it acts as an adhesive and joins all the particles to form the concrete, which is the construction material most widely used in the world.

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