How much cement is needed on cube concrete?

How much cement is needed on cube concrete?

How many cement on the cube concrete will be required for construction work? It is this question that those who are planning in the foreseeable future to engage in construction or repair work. Concrete is based on gravel or crushed stone, and a mixture of sand and cement, mixed on the water.

To make everything correctly, in addition to the production technology itself, you need to know how much cement goes to concrete cube. This is important not only for calculating the required amount of materials, but also because the strength will depend on it.

Factors

So let’s consider what factors it is important to consider:

  1. First of all, you need to know that the calculations are carried out with an accuracy of a kilogram, and in the case of rubble consumption – up to 5 kilograms. Only so you can correctly calculate the main properties: mobility, rigidity and strength. The smaller the expense of the main binder, the more dense and reliable will be the final material.
  2. In the calculations, great importance is Selection of brand. From her will depend on the total consumption of the material, which ultimately can make the final product cheaper or more expensive. The selection of the brand must be carried out in view of the fact that the brand of concrete obtained in the end should be below the grade of the cement used. So, for example, when preparing the M100 concrete, it is necessary to use the M300 cement, and it will be necessary for one cube about 160-170 kilograms. If you use cement M400, then its consumption will be large – about 180-195 kilograms.
  3. Specialists are recommended in the manufacture of concrete Measure components proportions. Consider an example, 1: 5. This means that 1 part of the cement accounts for 5 parts of the sand. You can take any capacity and measure it as the number of cement and the amount of sand. Depending on the cement brand, the calculation will change. So, for the M600 brand, this ratio will be 1: 3, and for M400 1: 2.
  4. After water is added to the mixture, The volume of the solution becomes smaller compared to the volume of the mixture in dry form.

How much cement is needed on cube concrete?

Tables

Required data for calculation are presented in the following tables.

Table of proportions of cement brand M400, sand, rubble for the manufacture of the required brand of concrete

Required brand concrete

Mass proportions, C: P: Sh (kilogam) Volume composition for 1 l cement, P: Sh (liters) The resulting volume of concrete from 1 liter cement
M100 fourteen.6: 7.0 4.1: 6.one 7.8 L.
M150 13.5: 5.7 3.2: 5.0 6.4 L.
M200 12.8: 4.eight 2.5: 4.2 five.4 L.
M250 12.13.nine one.9: 3.4 4.3 L.
M300 eleven.9: 3.7 one.7: 3.2 4.1 L.
M400 eleven.2: 2.7 one.12.4 3.1 L.
M450 eleven.12.five one.0: 2.2 2.9 L.
Table of proportions of cement brand M500, sand, rubble for the manufacture of the required brand of concrete

Required brand concrete

Mass proportions, C: P: Sh (kilogam) Volume composition for 1 l cement, P: Sh (liters) The resulting volume of concrete from 1 liter cement
M100 fifteen.8: 8.one 5.3: 7.one nine.0 L.
M150 fourteen.5: 6.6 4.0: 5.eight 7.3 L.
M200 13.5: 5.6 3.2: 4.nine 6.2 L.
M250 12.6: 4.five 2.4: 3.nine five.0 L.
M300 12.4: 4.3 2.2: 3.7 4.7 L.
M400 eleven.6: 3.2 one.4: 2.eight 3.6 L.
M450 eleven.4: 2.nine one.2: 2.five 3.2 L.

Water consumption table for obtaining concrete plasticity

Required plasticity of concrete

Water consumption with the highest size of aggregate particles

(in l / cube.M.)

Gravel, mm Crushed stone, mm
10 twenty 40 80 10 twenty 40 80
Very plastic 215 200 185 170 230 215 200 185
Mid-glistening 205 190 175 160 220 205 190 175
Maloplastic 195 180 165 150 210 195 180 165
Nothams 185 170 155 140 200 185 170 155

The most optimal option in the ratio of sand and cement parts in the manufacture of concrete cube is 0.5 sand cube, 0.8 – rubble (gravel) and a certain part of the filler. The amount will depend on the specific place of use.

For example, concrete M200, which is perfectly suitable to form tracks and fill the foundation, will require the use of 280 kg of cement. For concrete M300, there will be more cement – about 380 kg.

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