80cft
To calculate the amount of sand and metal (aggregate) in M10 and M20 grades of concrete, you first need to determine the mix ratio. M10 is typically a 1:3:6 ratio (cement:sand:aggregate) and M20 is a 1:1.5:3 ratio. For a given volume of concrete, calculate the total parts in the mix, then divide the total volume by the sum of the parts to find the volume of each component. Finally, multiply the volume of sand and aggregate by their respective mix ratios to find the quantities needed.
M20 Mrefers to mix and 20 refers to 20 n/mm2 strengh and M200 mix 200n/mm2
1:2:4
1:1.5:3
it is concrete mix which gain strength 20kn/mm2 in 28 day of curing....
1:1.5:3 (cement,stone,sand)
does not exceed 30N/mm2
Mix ratio for M5 concrete is 1:1.5:3compressive strength is 20N/mm2 @ 28 days.1 part of cement, 1.5 part of sand, 3 parts of coarse aggregate.
Usually for a design mix as per Indian Standards when the mix proportions are arrived for M25,the total cement consumption will be around 400 kg.From that the number of cement bags will be 8 numbers for 1 cum
The mean grade of M20 concrete is defined by its compressive strength of 20 MPa (megapascals) at 28 days. This grade typically consists of a mix ratio of 1 part cement, 1.5 parts sand, and 3 parts coarse aggregate by volume. M20 concrete is commonly used for structural applications where moderate strength is required, such as in beams, slabs, and columns.
density of send and aggrigate
Concrete :- a mix of cement, sand, water, and gravel. Mortar :- a mix of cement, sand, and water