Which one mentioned below is not a raw material used in the Portland cement production?(a) Clay(b) Limestone(c) Gypsum(d) QuicklimeThe question was asked by my school teacher while I was bunking the class.Origin of the question is Inorganic Chemical topic in section Inorganic Chemical Industries of Chemical Technology

Which one mentioned below is not a raw material used in the Portland c

1.	Which one mentioned below is not a raw material used in the Portland cement production?(a) Clay(b) Limestone(c) Gypsum(d) QuicklimeThe question was asked by my school teacher while I was bunking the class.Origin of the question is Inorganic Chemical topic in section Inorganic Chemical Industries of Chemical Technology
Answer» CORRECT ANSWER is (d) Quicklime The best I can explain: Quantitative requirements of PORTLAND cement production are- clay-0.1 to 0.3 TON, limestone 1.2to1.3 TONE, gypsum- 0.03 to 0.05, coal-0.25 to 0.40 and water is 3 tons required.

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