Question

give a brief discription of cement industries?​

Answer 1

The cement industry is the building block of the nation's construction industry. Few construction projects can take place without utilizing cement somewhere in the design. Annual cement industry shipments are currently estimated at $7.5 billion for 2012; up from $6.6 billion in 2011. U.S. cement production is widely dispersed with the operation of 107 cement plants in 36 states. The top five companies collectively operate 49.6 percent of U.S. clinker capacity with the largest company representing 14.2 percent of all domestic clinker capacity. An estimated 76.7 percent of U.S. clinker capacity is owned by companies headquartered outside of the U.S.

Answer 2

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Today, cement-based concrete is the most abundant manufactured material on Earth. Three parts of the cement-manufacture process release carbon dioxide: Calcination. Most cement is made from a mixture of calcined limestone, clay, and chalk.