R Ravi Shankar • 4.19K Points Extraordinary Q. The proportion of lime, silica, alumina and iron oxide in a good Portland cement should be ? (A) 63:22: 6:3 (B) 63:22:3:6 (C) 22:63:6:3 (D) 22:63:3:6 Correct Answer - Option(A) Views: 562 Filed under category Concrete Technology Share
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