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R

Ravi Shankar • 4.19K Points
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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
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