In case you are wondering how to calculate the quantities of cement sand and aggregate, for M20 concrete ratio, in your construction project.
You need not worry, you can calculate it easily by yourself. You don’t require any civil engineering knowledge or no need to remember any formulas to find out the required materials.
I shall show you to find it manually, and also through our free online tool “CIVIL MATERIAL CALCULATOR”.
Definition
The M20 concrete ratio is a 1:1.5:3 concrete mixture, where 1 part of cement, 1.5 parts of sand, and 3 parts of aggregate are mixed in volume, to achieve a desired level of strength and durability.
In M20 concrete ratio, the letter “M” stands for mix, and the number “20” represents the compressive strength of the concrete cube of 150mm after 28 days of curing (measured in N/mm² or Mpa).
Importance of selecting the appropriate concrete ratio for different projects:
Selecting the appropriate concrete ratio is crucial in construction as it directly influences the performance and durability of the concrete.
The ratio determines the proportions of cement, sand, aggregates, and water, which ultimately affect the strength, workability, and other properties of the concrete.
Using the wrong concrete ratio can lead to issues such as inadequate strength, poor workability, excessive shrinkage, or increased susceptibility to cracking.
The key components involved in the Concrete Ratio
The Concrete Ratio comprises four main components:
- Cement – Cement acts as the binder that holds the other components together, forming a solid matrix.
- Fine aggregates – Fine aggregates, such as sand, fill the gaps between the cement particles, enhancing the overall strength and workability of the concrete.
- Coarse aggregates – Coarse aggregates, typically gravel or crushed stone, provide structural stability and bulk to the mixture.
- Water – Water, on the other hand, activates the cement and facilitates the chemical reaction known as hydration, which leads to the hardening of the concrete.
Each component of the Concrete Ratio plays a crucial role in determining the strength, workability, durability, and other properties of the concrete.
Achieving the correct proportions and understanding the functions of these components is vital to ensure the desired performance and quality of the final concrete structure.
The ideal proportions and measurements required for the perfect M20 Concrete Ratio for 1 Cubic Meter.
The M20 Concrete Ratio for 1 Cubic Meter requires precise proportions and measurements of its components to achieve the desired strength and characteristics in the concrete mixture. These ideal proportions ensure the optimal balance of ingredients for a high-quality result.
- Cement:
The ideal proportion of cement in the M20 Concrete Ratio for 1 Cubic Meter typically ranges from 300 to 350 kilograms. This amount of cement provides the necessary binding properties and contributes to the overall strength of the concrete.
- Fine Aggregates (Sand):
The proportion of fine aggregates in the M20 Concrete Ratio for 1 Cubic Meter generally ranges from 550 to 650 kilograms. The fine aggregates, typically in the form of sand, fill the voids between the larger particles and contribute to the workability and density of the concrete.
- Coarse Aggregates (Gravel or Crushed Stone):
The proportion of coarse aggregates in the M20 Concrete Ratio for 1 Cubic Meter usually ranges from 1100 to 1300 kilograms. These larger particles, such as gravel or crushed stone, provide strength, stability, and volume to the concrete mixture.
- Water:
The ideal amount of water in the M20 Concrete Ratio for 1 Cubic Meter is typically around 180 to 200 liters. The correct water-to-cement ratio is crucial for the hydration process, ensuring proper chemical reactions and the development of desired concrete properties.
It’s important to note that achieving the perfect M20 Concrete Ratio for 1 Cubic Meter requires careful calculation and measurement. Precise proportions are essential to achieve the desired strength, workability, and durability of the concrete.
However, it’s always recommended to refer to local codes, guidelines, or consult with concrete experts to ensure adherence to specific regional requirements and project specifications.
How to calculate cement, sand and aggregate quantity in m20 concrete ratio for 1 cubic meter (m³).
Let us consider,
volume = 1 m³
Wet volume = 1.54 x Dry volume
=1.54 m³
M20 concrete ratio = 1 : 1.5 : 3
Total part of ingredient present in m20 concrete=1+1.5+3 = 5.5
How many cement bags in m20 concrete
Cement = (Ratio of cement/Total Ratio) x wet volume of concrete
=1/5.5 x 1.54
=0.28 m³
Now, we know Weight = Volume x Density
=0.28 x 1440 (Density of Cement 1440kg/m³)
=403 kg
=403 / 50 (To find the number of bags of cement divide by 50 kg)
= 8.06 bags
:. 0.280 m³ of Cement is required for 1 m³ of m20 concrete.
:. 8.064 bags of Cement bags are required per cubic meter of m20 concrete.
How many m³ of sand is required in m20 concrete
Sand = (Ratio of sand / Total Ratio) x wet volume of concrete
=1.5/5.5 x 1.54
=0.42 m³
:. 0.42 m³ of Sand is required per cubic meter of m20 concrete.
How many m³ of Aggregate is required in m20 concrete
Aggregate = (Ratio of Aggregate / Total Ratio) x wet volume of concrete
=3/5.5 x 1.54
=0.84 m³
:. 0.84 m³ of Aggregate is required per cubic meter of m20 concrete.
How to calculate cement, sand and aggregate quantity in m20 concrete by our tool ”civil material calculator”.
Step 1: This tool can be used to calculate the quantities of Cement, Sand, and Aggregate in Square, Rectangular or Trapezoidal footing, slabs, beams, columns, pile, and more.
Step 2: If volume is not known then calculate the value manually, or you can calculate it by the volume calculator, by entering the inputs that are asked to enter either in metre or feet as required.
Step 3: Then enter the desired mix ratio, for our case m20 (i.e. 1 : 1.5 : 3).
Step 4: Enter the Volume in m³ or ft³ as calculated.
Step 5: Click on calculate. You will obtain the results that can be copied and kept. The results will display the quantities of cement, sand and aggregate in Cubic meter, cubic feet and ton. The number of cement bags required will also be shown in the result.