Physics · Design of Concrete Structures
Identify whether the given statements related to concrete mix design according to IS 456:2000 are true or false. Statements: 1) Nominal mix concrete may be used for concrete of M20 grade or lower. 2) The target mean strength of the concrete mix should be equal to the characteristic strength plus 1.65 times the standard deviation in the case of design mix concrete.
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Statement 1 is true but Statement 2 is false
- 2Statement 1 is false but Statement 2 is true
- 3Both statements are false
- 4Both statements are true✓
Correct answer
Both statements are true
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