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The loss in weight should not exceed ________ % when tested with Na2SO4 and ________ % with MgSO4 solution.

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The loss in weight should not exceed ________ % when tested with Na2SO4 and ________ % with MgSO4 solution.

(a) 12, 18

(b) 18, 12

(c) 10, 15

(d) 15, 10

This question was addressed to me in class test.

Query is from Sampling in division Concrete Mix Design of Concrete Technology

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The correct choice is (a) 12, 18

To elaborate: The loss in weight should not exceed 12 percent when tested with sodium sulphate and 18 percent with magnesium sulphate solution.

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