What is a good concrete mix ratio?

In terms of the ratio for concrete, it depends on what strength you are trying to achieve, but as a general guide a standard concrete mix would be 1 part cement to 2 parts sand to 4 parts aggregates. For foundations, a mix of 1 part cement to 3 parts sand to 6 parts aggregates can be used.

What is the meaning of 1 2 4 ratio of concrete?

The ratio of RCC 1:2:4 means one part of cement by volume, two parts of fine aggregate/sand by volume and four parts of coarse aggregate/bajri by volume. Now for making cement concrete mix, we take one bag of cement and two boxes of fine aggregate and four boxes of coarse aggregate for the said ratio 1: 2: 4.

What is the mix ratio for weak concrete?

As far as Civil construction is considered,the ratio of concrete is 1: 3: 6 (M-10) and below, which is called lean concrete.

How do you calculate concrete mix?

The quantities of materials for 1 m3 of concrete production can be calculated as follows: The weight of cement required = 7.29 x 50 = 364.5 kg. Weight of fine aggregate (sand) = 1.5 x 364.5 = 546.75 kg. Weight of coarse aggregate = 3 x 364.5 = 1093.5 kg.

How do you calculate the water cement ratio?

The water to cement ratio is calculated by dividing the water in one cubic yard of the mix ( in pounds) by the cement in the mix (in pounds). So if one cubic yard of the mix has 235 pounds of water and 470 pounds of cement- the mix is a . 50 water to cement ratio.

What is the ratio of 1 2 4 in concrete?

The mix 1:2:4 represents the M15 grade of concrete, which means the concrete formed with this ratio has compressive strength of 15 kN/m^2. 1:2:4 represents the amount of cement, fine aggregate (sand) and coarse aggregate to be added during batching of concrete.

What is the mix ratio of M25 grade of concrete?

Concrete mix ratio M25 :- it is Standard grade of concrete mainly used for RCC work in domestic uses for the construction of beam, slab, footing and column , and concrete mix ratio for m25 is 1:1:2, in which one part is cement 1 part is sand and 2 part is aggregate.

What is the standard mix of concrete?

Standard Mix The nominal concrete mix of a fixed proportion of cement, sand and aggregate provide considerable variation in strength resulting in the poor or over-rich mix. Hence minimum compressive strength has been assigned in many proportions and termed as the standard mix.

What is meant by proportioning of concrete?

In design mix proportion of cement, coarse aggregate, fine aggregate and water are determined to get a mix of given strength, proper workability and durability with the economy. Determining the proportion of cement, fine aggregate, and coarse aggregate for concrete mix is known as the proportioning of concrete.