Cement News tagged under: Magnesia

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Magnesia in clinker

18 November 2019, Published under Cement News

Magnesia is often present in clinker as periclase, which is formed of free MgO. However, periclase does not always provide a welcome part of the clinker’s composition and can lead to significant volume expansion of the concrete that is made with cement manufactured from such clinkers. Figure 1: periclase inclusions in belite. The belite crystal with two inclusions is 12µm across In cement clinker magnesia (MgO) can be present as a substituent in each of the primary clinker miner...