Extraction of Raw Materials
The raw materials such as limestone and clay needed to produce cement are generally extracted from quarries close to cement plants. Extraction of such materials is done by blasting or the use of special tools and equipment to extract these materials. Before extracting these materials, a pretesting of the percentage of the raw material is conducted at the plant's laboratory to determine the place or location for extraction. After extraction, The raw materials ( being limestone, shale/ clay, iron oxide) are prepared. Gypsum is also made available for cement production.