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The guidelines for preparation for mortar is given in:

(a) IS 4455

(b) IS 2250-1981

(c) IS 3350-1981

(d) IS 5567

This question was posed to me in a national level competition.

This is a very interesting question from Mortar in division Building Construction of Basic Civil Engineering

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Right option is (b) IS 2250-1981

Easy explanation: The method of hand mixing and machine mixing can be employed. First cement is laid on a flat platform. The required amount of sand is spread on top of it. Finally, water is added slowly till required consistency is reached.

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