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IS 650:1991 is for ____________

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IS 650:1991 is for ____________

(a) Specification for standard sand for testing of cement

(b) Methods of sampling and analysis of concrete

(c) Specification for pozzolana cement

(d) Methods of test for pozzolanic materials

This question was posed to me in semester exam.

I would like to ask this question from Mix Design for Pumpable Concrete topic in section Concrete Mix Design of Concrete Technology

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Right choice is (a) Specification for standard sand for testing of cement

Explanation: IS 650:1991 Specification for standard sand for testing of cement to the need of civil engineering.

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