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How much maximum percentage by mass of performance improvers can be added in grade 33 OPC?(a) 0.5(b) 1(c) 5(d) 0.1This question was posed to me during an online interview.This intriguing question comes from Grades of Cement topic in portion Materials for Construction of Basic Civil Engineering

Answer»

The correct choice is (C) 5

The best I can explain: PERFORMANCE improvers include FLY ash, slag, rice husk, ash, etc.These can be added in quantity of 5% by mass as per Table 1 GIVEN in IS 269.



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