1.

According to IRC:15-2011 _______% Fly ash is required to be replaced with the total cementitious materials.(a) 15(b) 20(c) 25(d) 30I had been asked this question in an international level competition.My question comes from Road Method of Mix Design in section Concrete Mix Design of Concrete Technology

Answer»

The CORRECT answer is (B) 20

To elaborate: ACCORDING to IRC:15-2011, 20% Fly ash is required to be replaced with the total cementitious materials and 25% was according to IRC:15-2002.



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