# Advice 1: How to calculate the amount of concrete to fill the floor

Concrete is a versatile building material that is used for foundations, leveling of different surfaces, including pouring of floors, and construction of supporting structures. To most accurately plan the time of work on concreting and define the exact amount of material in advance to make calculations for identifying the required volume of the concrete mass.
Instruction
1
Most concrete structures have a complex geometric shape. This also applies to the installation of the floor with concrete screed. To facilitate the calculation of volume of concrete for this, break the design into simpler parts. This will significantly increase the speed of calculation. If you plan to use reinforcing elements, which constitute at least five percent of the total volume of fill, this error can be safely attributed to mounting losses, and therefore consider it optional.
2
Screed floor allows you to align coverage for further decoration. The thickness of the screed depending on the grade of concrete may be from 40 mm to 100 mm thinner screed prone to premature cracking, and a thicker, long drying.
3
To calculate Obama concrete to fill the floor must be approached with great responsibility, as the lack of material could adversely affect the quality of the building design.
4
If the screed is laid on a flat horizontal surface, then to calculate the volume of concrete use the following formula: V = S x H, where S is the surface area of the screed, and H is its thickness. For example, when floor space is 20 m2 and the thickness of the screed 0.07 m, the volume of the mixture is equal to 1.4 m3.
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To determine the amount of concrete and other method. To do this, measure the thickness of the future of the screed and the floor space, then multiply the obtained value. Multiply the result by the expenditure ratio of 1.02.
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To determine the amount of concrete to fill in kilograms, multiply the quantity of concrete to 490, as a result, you will learn how many kilograms of cement will go on flooring in your home. Received amount of cement multiply by three and get the desired amount of sand. According to the construction rules for one cubic meter of concrete is taken as 490 kg of cement.
To prepare the mortar for floor screeds, it is recommended to use a concrete mixer. Mix well the solution with a spade is impossible, and this may negatively affect the quality of the fill.

In preparing the solution in a bucket, you must first pour the water and then fill the concrete mixture, and not Vice versa.

# Advice 2 : How to calculate concrete volume

It is impossible to build a house or build a different structure, while not having the project, which would take into account everything, including the consumption of materials, and in particular, the desired amount of concrete.
You will need
• - input data;
• calculator.
Instruction
1
Before proceeding to the calculation of the required volume of concrete, determine the type of Foundation (it can be bar, slab and strip), as well as its configuration. The choice of type of Foundation and its configuration is due to bearing capacity of soil on which is planned construction of the facility.
2
To calculate tile Foundation, you need to know the plate thickness and surface area, and the presence of such additions as ribs, and, of course, their size. The minimum thickness of the tile base is 10 centimeters. Simmered that the area of the erected structure is 36 m2 (6x6), then, for pouring a slab Foundation with a minimum thickness will need 36 m2 x 0.1 m = 3.6 m3.
3
By analogy with the previous steps, you need to calculate the volume of concrete, if the thickness of the fill layer will be, say, 20 cm or 30 cm, This figure only takes into account the shading smooth plates, however, in order for the Foundation were characterized by a greater rigidity, it is necessary to make ribs that will attach to the plate resistance to deformation.
4
To calculate the amount of concrete at the stiffener need to know the length of this subassembly, and the cross-sectional area of ribs. For example, if the ribs will be made every three meters, the Foundation erected structure (6x6) will be six, i.e., three ribs and three along the ribs across. The length of each rib is equal to 6 meters and the total length will be 36 m (6 m x 6). The thickness of the edges corresponds to 0.8-1 to the height of the Foundation. Thus, the cross sectional area of the ribs when the plate thickness of 10 cm will be 0,008 m2 (0.1 m x 0.08 m). The pouring the ribs go in 0.288 m3 (m2 0,008 x 36 m). Add to the volume of concreterequired for pouring a slab Foundation, and the amount that will be required for stiffeners: the resulting value is the ultimate measure of the flow of concrete.
5
To calculate pier Foundation, it is necessary to know the number of the columns and their height and diameter. Find the area of the cross section of the column according to the formula S = 3.14 x R2 where R is the radius. Then find the volume of concreteneeded to fill a single column: multiply the cross-sectional area at the height of the column. Then, determine the total consumption of concrete for the construction of pier Foundation by multiplying the volume of concrete in one column the number of columns.
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For the calculation of the strip Foundation need to know the tape width, depth and total length. Usually the width of the belt varies from 20 to 40 inches, and its height is 40-50 cm. The total length of the strip Foundation is defined as the perimeter of the outer walls, which added to the length of the tape located under the inner walls. Multiply indices: the result is the required volume of concrete to fill the strip Foundation.
Note
Don't let math errors when calculating the volume of concrete!