Calculating the volume of concrete is essential in the construction of concrete structures. Whether it’s a slab project, a column, or a foundation, the correct mix of concrete allows for the construction of durable work.
The right amount of concrete in a construction project allows you to make significant savings on the budget. Discover through this article the important points about calculating the volume of concrete.
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Why calculate concrete volume?
Calculating the volume of concrete is an important step before any concrete construction work. Among other things, it defines the amount of concrete used during the project, but also allows you to order the right quantity from your supplier. Indeed, ready-mixed concrete is accessible to all individuals and professionals.
Many calculations must be made for those who choose to prepare their concrete. A miscalculation can lead to additional costs such as a new order.
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It is recommended for a successful concrete construction to keep a small margin of extra concrete when placing the final order. It is better to have a little leftover concrete than to run out during the course of the project.
What is the conversion rule?
Calculating the volume of concrete for a construction will depend on the shape of the work. Generally, it is about converting a measurement in m2 to a volume measurement in m3. For each type of support, a specific formula allows you to obtain the right amount of concrete. Here are some examples of the most commonly used formulas:
- Cube: C x C x C
- Paving: L x L x e
- Triangle: the right triangle has the formula: l x L x e/2 while other triangles are calculated as follows: Volume = (b x h) / 2 x e
- Cylinder: π r2 x e
- Rectangular rim: (4a2 + 2al + 2AL) x e
With the right formulas, your mason can indicate the exact quantity needed to carry out your concrete construction project. You can also use online simulators to calculate the volume of concrete for your work.
Calculating the volume of concrete for specific elements
The area to be constructed is often expressed in m2, while the amount of concrete used is expressed in m3. An additional calculation is necessary to define the correct dosage of concrete in your work.
On the other hand, the calculation differs depending on the shape of the work. The most requested concrete construction works are concrete slabs, columns, or all kinds of foundations.
Concrete slab
The concrete slab is used for all outdoor and indoor moving work. It is mandatory to build a concrete terrace or a parking space.
The usefulness of the concrete slab is no longer in question; it can be found everywhere in the house as well as near the pool. Furthermore, the volume of concrete for a slab is obtained by multiplying the area in m2 by the thickness of the concrete piece.
The surface of the tile is calculated based on the shape of the mold. Whether the slab is square, circular, rectangular, or another shape, the surface formula will be obtained accordingly. It should be noted that for an irregularly shaped slab, the volume of concrete will be calculated by subdividing the surface into rectangles.
For this, small rectangles will be placed on the support, and the sum of these calculations will determine the area to be filled with concrete. Regarding the thickness of the slab, the loads supported will determine the height. However, it is recommended for a slab to have a thickness of at least 15 centimeters.
Column
The calculation of the volume of concrete for the construction of a column is similar to that of the concrete slab. To obtain the exact volume, simply multiply the area by the height of the column. The same principle applies as in the calculation of the concrete slab.
However, the height of a column is much greater than the thickness of a slab. The column can also have different shapes, and the calculation of the area will depend on this geometric shape.
Foundation
Calculating the volume of concrete for a foundation footing will depend on the reality on the ground. The tools used to dig the foundation soil will not yield regular shapes. Moreover, the ground may contain rocks, and the depth of the foundation footing will depend on access to solid ground.
It is therefore impossible to obtain an exact volume calculation for a foundation. By assessing the different depths and lengths between the pillars, an average calculation can be announced. The trick would be to order a little more than your estimate to compensate for possible unforeseen circumstances.
It is always costly to reorder a small quantity of concrete from a professional. Additionally, the wait between the two may cause a failure at the concrete joint. It is recommended to hire a professional, including a masonry company or construction work.
The price of 1 m3 of concrete
The production of concrete can be carried out by artisans who have experience in pouring concrete. However, there are currently many types of ready-mixed concrete, and they are delivered as a truck mixer. The latter allows the ingredients that make up the concrete to mix well until the pouring work.
Concrete delivered by a professional is more homogeneous than that of homemade concrete. Therefore, it is more advantageous to order concrete delivered in a truck mixer. You will save time on preparation and calculating the correct dosage for the concrete.
Tag: convert m2 to m3 for concrete