Identify whether the given statements related to concrete mix are true or false.
Statements:
1) Nominal mix concrete may be used for concrete of M 20 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.
1
Both statements are true
2
Both statements are false
3
Statement 1 is false but Statement 2 is true
4
Statement 1 is true but Statement 2 is false