__________ has designated the concrete mixes into a number of grades as M10, M15.(a) IS 456-2000(b) IS 456-2010(c) IS 513-1999(d) IS 465-2000I have been asked this question during an online interview.My doubt is from Concept of Concrete Mix Design in section Concrete Mix Design of Concrete Technology

__________ has designated the concrete mixes into a number of grades a

1.	__________ has designated the concrete mixes into a number of grades as M10, M15.(a) IS 456-2000(b) IS 456-2010(c) IS 513-1999(d) IS 465-2000I have been asked this question during an online interview.My doubt is from Concept of Concrete Mix Design in section Concrete Mix Design of Concrete Technology
Answer» Correct choice is (a) IS 456-2000 The best explanation: IS 456-2000 has designated the concrete mixes into a NUMBER of GRADES as M10, M15, M20, M25, M30, M35 and M40.

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