1:1:2
The ratio of cement, sand and crushed stone in M 25 grade concrete is 1:1:2.In this grade of concrete a compressive strength not less than 25 N/mm2 is achieved in 28 days.
as per ACI , the ratio between column & beam concrete grades dont exceed 1.4
A lot
0.17
1:1.74:2.82
1:2:4
In grade 25 concrete, which typically has a mix ratio of 1:1:2 (cement:sand:aggregate), approximately 0.5 cubic metres of sand is required per cubic metre of concrete. Since the density of sand is about 1,600 kg per cubic metre, this translates to around 800 kg of sand needed for one cubic metre of grade 25 concrete. This amount can vary slightly based on the specific mix design and moisture content of the sand.
There is no set ratio for a concrete requiring a compressive strength of m50. It is usually created according to the factors of the site condition and location.
The Concrete mixing ratio for M35 grade concrete as per IS Mix design is1:1.6:2.907 (cement:Fineaggregate:Coarse aggregate)The ratio obtained is as per design calculations by considering the grade of aggregates and the type of cement used.The Water/cement ration is 0.43
M 25
1:1:2
M-25 grade concrete refers to a specific mix of concrete that has a characteristic compressive strength of 25 megapascals (MPa) or approximately 3625 psi when tested at 28 days. The "M" stands for "mix," and the number indicates the strength of the concrete, which is achieved through a specific ratio of cement, sand, aggregate, and water. Typically, M-25 is used in structural applications such as beams, columns, and slabs where higher strength is required. This grade is commonly used in medium-strength construction projects.