engineering recuitment PGCIL Diploma Trainee Mock Test 2024 Reinforced Concrete Structures Limit State Method
As per IS 456 ∶ 2000, the minimum grade of concrete to be used for plain concrete and reinforced concrete, respectively, in concrete works exposed directly along the sea coast are:
1
M20 and M30
2
M15 and M25
3
M25 and M40
4
M20 and M25