What is the unit weight of concrete and steel by diameter?

Question

Accepted Answer

The unit weight of concrete and steel varies based on diameter.

Unit weight of concrete varies from 22 to 25 kN/m3
Unit weight of steel varies from 7850 to 8000 kg/m3
For example, the unit weight of 10mm steel is 0.617 kg/m and 20mm steel is 2.469 kg/m
Similarly, the unit weight of M20 grade concrete is 25 kN/m3

Accepted Answer

Unit Weight of Concrete:

The unit weight of plain cement concrete is 2,400 kilograms per cubic meter (kg/m³).

For reinforced concrete structures, the unit weight of concrete is 2,500 kg/m³.

Standard concrete typically weighs between 2.3 and 2.4 tonnes per m3.

Unit Weight of Steel:

The unit weight of steel is approximately 7,850 kg/m³ or 78.5 kgN/m.

The unit weight of steel is defined as the ratio of the weight of steel to the volume of steel.

The density of concrete can vary from light to high density, depending on the mix and materials used. The unit weight of steel also varies depending on the type of steel.

Accepted Answer

The unit weight of concrete and steel varies based on diameter.Unit weight of concrete varies from 22 to 25 kN/m3Unit weight of steel varies from 7850 to 8000

Learn how to calculate the unit weight of steel bars by applying the formula weight = volume x density and knowing the volume of a steel ...

Accepted Answer

The unit weight of concrete and steel can be expressed in terms of density and mass per unit length, respectively. Here are the details for each:

### Unit Weight of Concrete
The unit weight (density) of concrete typically ranges between 2,400 kg/m³ to 2,500 kg/m³. For general calculations, a standard value of 2,400 kg/m³ is often used.

### Unit Weight of Steel (Density and Mass per Unit Length)
The density of steel is approximately 7,850 kg/m³. The unit weight of steel reinforcement bars (rebar) is often provided per unit length for various diameters. The weight per meter (W) for a steel bar can be calculated using the formula:

$$ W = \frac{\pi}{4} \times d^2 \times \rho $$

Where:
- $ d $ is the diameter of the bar in meters.
- $ \rho $ is the density of steel (7,850 kg/m³).

For convenience, standard unit weights of steel bars are often provided in tables. Here are common diameters and their corresponding weights per meter:

| Diameter (mm) | Weight per meter (kg/m) |
|---------------|--------------------------|
| 6             | 0.222                    |
| 8             | 0.395                    |
| 10            | 0.617                    |
| 12            | 0.888                    |
| 16            | 1.580                    |
| 20            | 2.470                    |
| 25            | 3.850                    |
| 32            | 6.310                    |
| 40            | 9.870                    |

These values can be derived from the formula above and rounded to standard figures used in the industry.

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We'll go with core cutting method and then check the results of it...

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45*4:2.7kg 45*5:3.4kg 50*4:3.0kg .....

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Totally experienced base questions and management regarding also.

Accepted Answer

2500kg/cum

8mm 0.395 permtr kg

10mm 0.617 permtr kg

12mm 0.888 permtr kg

16mm 1.580 permtr kg

20mm 2.469 permtr kg

25mm 3.858 permtr kg

32mm 6.320 permtr kg

Accepted Answer

2400 to 2500 KG/mtr3

Accepted Answer

2500kg /knmm2 ,,,8mm, 0.39kg/m 10mm, 062 kg/m,,12mm 0.89kg/m,16mm 1.58kg/m,,20mm, 2.47kg/m,,,25mm, 3.85kg/m 28mm,, 4.83kg/m,,,32mmn6.32kg/m

Accepted Answer

Unit weight of concrete is 2450 kg/cum For unit weight of steel dina wise we can use 16/d2. Where d is dia of the bar

Accepted Answer

कंक्रीट और स्टील का इकाई वजन व्यास के आधार पर भिन्न होता है।

कंक्रीट का इकाई भार 22 से 25 kN/m3 तक होता है
स्टील का इकाई वजन 7850 से 8000 किलोग्राम/घन मीटर तक होता है
उदाहरण के लिए, 10 मिमी स्टील का इकाई वजन 0.617 किग्रा/मीटर है और 20 मिमी स्टील का इकाई वजन 2.469 किग्रा/मीटर है।
इसी प्रकार, M20 ग्रेड कंक्रीट का इकाई भार 25 kN/m3 है

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What is the unit weight of concrete and steel by diameter?

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