Cement is the basic material for buildings and civil engineering constructions. Portland cement, the most widely used cement in concrete construction, was patented in 1824. Cement is a fine powdery material untwining silicates of calcium, formed out of raw materials consisting calcium oxide, silica, aluminum oxide and iron oxide. India has an installed capacity of 234 million tons per year, making this is the second highest Cement producer in the whole world. As is the case in the United States, several multinational Cement producers have built up a larger share of India’s Cement production industry. Among many countries India is the second highest producer of cement in the world, with 130 large cement plants and an installed capacity of 234 million ton per annum (94% of which is from large cement plants). During 2006-2007 cement production grew at a rate of 9.1% compared to the same period the previous year. However, despite this growth, India’s per capita production is 115 kg per annum, well under the world average of 250 kg (World Cement 2007). The Cement manufacturing sector plays a vital role in the nation’s economic development since cement is the most versatile and widely used construction material. The cement industry has made phenomenal progress in terms of volume, technology and product up gradation in recent years.
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