The flexural strength of M30 concrete as per IS: 456-2000 is

The partial factor of safety for concrete as per IS: 456-2000 is

A rectangular column section of $$250\,\,mm \times 400\,mm$$ is reinforced with five steel bars of grade $$Fe$$ $$500,$$ each of $$20$$ $$mm$$ diameters. Concrete mix is $$M30.$$ Axial load on the column section with minimum eccentricity as per $$IS: 456$$ - $$2000$$ using limit state method can be applied upto

$$IS:$$ $$1343 – 1980$$ limits the minimum characteristic strength of pre-stressed concrete for post tensioned works and pretension work as