What is M50 grade concrete?

For the experimental purpose, concrete mix is designed for M50 with target strength of 60M Pa by 100% replacement of natural sand to manufactured sand (M-sand) in the increments of 10% and compared the strengthof concrete with control mix.

What does M50 concrete mean?

Parameters for mix design M50

Grade Designation = M-50. Type of cement = O.P.C-43 grade. Brand of cement = Vikram ( Grasim ) Admixture = Sika [Sikament 170 ( H ) ] Fine Aggregate = Zone-II.

What do you mean by M 30 grade of concrete?

∴ In the designation of a concrete mix, the letter 'M' and the number stands for Mix and characteristic compressive strength of 150 mm cube at 28 days. ∴ The M 30 grade of concrete means the concrete mix which attains 28 day strength (characteristics) as 30 MPa or 30 N/mm².

What is M40 concrete used for?

M40 Grade:

In M40 grade of concrete “M” denoted by Mix ratio & 40 denotes compressive strength of a 150 mm cube after 28 days of curing, indicates in N / mm². Use of M 40 Grade of Concrete: M40 grade of concrete is used in Pre-stressed concrete. It is used in RCC slabs, beams, columns, footings, etc.

What is M in grade of concrete?

Grade of concrete is denoted by prefixing M to the desired strength in MPa. For example, for a grade of concrete with 20 MPa strength, it will be denoted by M20, where M stands for Mix. These grade of concrete is converted into various mix proportions.

High Strength Concrete (M70) Mix Design as per IS 10262:2019

What is the slump value of M40 concrete?

Slump value for M30 to M40 can be taken as a minimum of 50 and a maximum of 100. Slump value for M40 to Above can be taken as a minimum of 75 and a maximum of 150.

What is M30 concrete mix?

Mix proportioning for a concrete of M30 grade is given in A·I to A-ll. s = standard deviation. From Table I of IS 10262:2009, Standard Deviation, s = 5 N/mm². Therefore, target strength = 30 + 1.65 x 5 = 38.25 N/mm².

What is M40 concrete?

M40 grade stands for it's a mix of concrete with a characteristic compressive strength of 40 N/mm². The mix design procedure for M40 grade concrete as per ACI Method is discussed. M40 Grade Concrete Mix Design Procedure.

Is M50 high strength concrete?

The experimental study shows that, 28 days compressive strength of M50 concrete mix using 100% river sand without admixture is 52.40MPa. However for M50 concrete with 70% replacement of natural sand by M-Sand gives compressive strength of 57.90 MPawhich is 10.50% higher than the controlled concrete.

Where is M50 grade concrete used?

M50 is generally used in high rise towers above 40 floors, and instead of slump cone test we have to check flow index of concrete above M50. I once used M50 concrete for columns for high rise tower of 56 floors.

What is G50 concrete?

The strength of G50 increases 18% in sealed curing and site cured concrete has 8% strength increments from 28-90 day of age. Concrete G40 has the highest water absorption, VPV and sorptivity properties followed by G45 and G50 in all ages of test under both curing conditions.

What is the value of flexural strength of a m50 concrete?

The experimental test results showed that 25% fly ash with 0.3% glass fibers addition in concrete provided highest compressive strength upto 51.45 at 28 days and a flexural strength of 5.15 MPa.

What is M40 concrete mix ratio?

A Grade M40 concrete with a mix proportion of 1:1:2:0.35 (cement: sand: granite: water-to-cement ratio) was used for all concrete mixes.

How do you calculate M30?

M30 Grade of Concrete Mix Design Calculation Formula

Cement Content = 360 / 3.15 x 1000 = 0.114 Cu. M. Water Content = 140 / 1.00 x 1000 = 0.140 Cu. M.

What is the design strength of M 30 grade concrete?

III.

The Standard deviation (S) value for M30 grade concrete is given in table 8 of IS456. After curing in water for 28 days, the concrete should have compressive strength greater than 38.25 N/mm² when tested in a Direct Compressive Testing Machine (CTM).

What is the density of M30 grade concrete?

But irrespective of the grades of geopolymer concrete blocks, the compressive strength was found to increase with the increase in density, the maximum strength being attained for a density of 2400 Kg / m 3 .

What is M25 grade concrete?

M25 grade concrete is made by mixing cement, sand and coarse aggregates in a 1: 1: 2 ratio ( 1 part is cement,1 part is sand and 2 part is cement) in which keeping the water-cement ratio between 0.4 and 0.6.

How many bags of cement are in a M40 concrete?

Weight of 1 bag cement = 50 kg. =0.0347 cum. = 6.25 bags.

How do you mix M40 concrete?

Which is better M20 or M25?

The behavior of M25 concrete is stiffer than M20. It can take more loads. The deflection is less as compared to M20 concrete as shown in fig.