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Everything You Need to Know About Cement
For the production of cement, the first stage is the mining of its basic ingredients which are limestone, marl, and clay in quarries. There are various ways to extract the raw materials such as digging or blasting. Once these raw materials are collected, the next step that follows would be to crush them into smaller pieces. This mailing process includes the addition of minerals that are required to ensure the correct chemical composition for the final cement product. The fine powder-like result from the milling process is then sent to the kiln where it would be heated at temperatures around 1500°C. At these high temperatures, the raw meal converts into smaller granules that have gone through chemical reactions and are called clinkers. Once the clinker is done, it is stored to cool down and get ready for the next stage where it would be mixed with gypsum. Around 3 to 5 percent gypsum is added to the clinker to regulate the setting of the cement. Once the addition is done, it is fi...
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