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The ratio of percentage of alumina to iron oxide in OPC 43 grade is:(a) 3.5(b) 0.66(c) 0.1(d) 0.05I had been asked this question during an interview for a job.I would like to ask this question from Grades of Cement topic in chapter Materials for Construction of Basic Civil Engineering

Answer» CORRECT option is (B) 0.66

Explanation: It is mentioned in IS 8112:2013 Table 2.3.5 is the TOTAL sulphur CONTENT, 0.1 is CHLORIDE content and 0.05 is alkali content.


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