# What is the ratio of M35 concrete?

What is the ratio of cement, sand & aggregate for M35 grade concrete? I didn’t find specific mix ratio for M35 concrete in IS code or any other text books. For concrete grades like M15, M20 fixed ratio has been specified. What is it for M35 grade of concrete?

Mix ratio for M35 concrete is 1:1.6:2.907 and the compressive strength it gains in 28 days is 35N/mm².

How did you arrive with this ratio.