INDUSTRY|building and public works|building industry|building materials|cement
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- cement clinker | clinker
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- Definition intermediary product that is produced in the manufacture of cement and is formed by the heat processing of cement elements in a kiln Reference "COM-Terminology Coordination, based on:- Wikipedia > Cement clinker (5.7.2023)- Mary McMahon. 'What are Cement Clinkers?' (5.7.2023) About Mechanics- European Cement Association. 'THE STORY OF CEMENT MANUFACTURE' (5.7.2023)"
- Comment The cement-making process can be divided into two basic steps:- Clinker (the main constituent of cement) is first made in a kiln with gas up to 2000°C, which heats raw materials such as limestone (calcium carbonate) with small quantities of other materials (e.g. clay) to 1,450°C. During this process, known as calcination, the calcium carbonate (limestone) is transformed into calcium oxide (lime), which then reacts with the other constituents from the raw material to form new minerals, collectively called clinker. This near-molten material is rapidly cooled to a temperature of 100 - 200°C.- Clinker is then ground with gypsum and other materials to produce the grey powder known as cement.