Starting a repair or installation floor covering, it often becomes necessary to level the surface and fill the screed, which will be the basis for the final finishing of the future floor. This responsible event must be carried out in full accordance with the technology. It is important to know how to calculate the material for the screed without errors in order to avoid unnecessary cash costs.
When a floor screed is being installed, it is not difficult to find out the material consumption.
Calculations are made in the following order:
Using the screed calculation example above, you can determine the amount of materials for each room by substituting the data into the formula. It must be remembered that in the process of preparation, the composition for pouring tends to decrease in volume. To find out how much floor screed mixture is needed, you need to know that 0.69 cubic meters of solution is obtained from its cubic meter. This means that you will have to adjust the amount of building materials.
Typically, the composition of the solution for pouring the screed includes:
Mixtures are also commercially available in which gypsum is the binder rather than cement. Such a composition is distinguished by the fact that it dries faster, almost does not shrink, and it is applied even in a thin layer. But gypsum also has a drawback - it is less resistant to moisture, so this composition is used exclusively for dry rooms, for example, for living rooms.
Experts advise: when purchasing cement, carefully look at the date of release of products, since when long-term storage the material begins to absorb moisture, as a result of which the brand of goods decreases.
Of course, buying a completely ready-made mixture is easier than making it yourself. In addition, thanks to the information from the manufacturers on the packaging of the product, you can easily understand what specific work the composition is intended for. At the same time, the cost of the finished mixture is much higher than for cement.
The duration of the service life of the coating and its appearance depend on how well the solution for pouring the screed will be prepared.
When the amount of the mixture for floor screed has been calculated and building materials have been purchased, they begin to prepare the solution in the following sequence:
When creating a base for flooring, the weight of the floor screed is of no small importance, depending on the condition. interfloor overlap. In old buildings with wooden lags the concrete base is not laid now.
Filling the screed, such as in the photo, is done in stages:
Naturally, before starting work, you should correctly calculate the dry mix for floor screed.
In preparation for pouring the screed:
Lighthouses are located in one horizontal plane of the floor. Such beacons for leveling the floor are special landmarks from guide rails. It is along them that in the process of filling the fill is carried out by the rule and thus a smooth and even surface is obtained.
The installation of beacons should be done carefully and accurately, since the horizontalness of the base for finishing. Guides can be made from a special aluminum profile.
Beacons are mounted in a certain sequence:
IN last years sand concrete is used to prepare the solution. It is a mixture of Portland cement, various additives (mineral and natural) and sand.
After it has been calculated how many bags of sand concrete are needed for the floor screed and the solution has been prepared, as well as beacons have been installed, you must immediately start pouring.
The mixture is laid out in strips, focusing on the guides. With smooth movements, they carry out the rule along the slats towards themselves, moving from the wall opposite the entrance.
After the solution has set, the beacons are dismantled, and the strips from them are sealed with a solution and leveled with a spatula. The presence of protrusions or depressions is indicated by light spots that appear on the surface. cement screed, which eliminate the solution and the rule.
concrete base should dry well. It is necessary to understand how much the floor screed dries, so as not to spoil the work done. During the first 10 days, its surface should be moistened with water so that cracks do not occur.
This technology differs in many ways from traditional concrete screed, since its implementation does not require the use of cement and the so-called "wet" work.
To equip a dry screed, you will need the following building materials:
Before starting work, you need to calculate the bags for the screed and other materials listed above.
The creation of a dry screed is carried out in stages:
The cost of arranging a dry screed depends on the type of materials used. It is laid only in dry rooms.
The floor screed is integral part residential, technical or production premises. At the same time, the floor screed can serve as the basis for the flooring of the finishing coating and as a “finishing” coating for utility and industrial premises.
material calculation for square meter gender depends on many factors.
Earlier, we have already considered in detail. Before moving on, for example, to calculate the amount of cement and sand per floor screed for a particular room, a number of assumptions should be made:
So, how much cement is needed for floor screed, poured with M200 cement-sand mortar (proportions of cement and sand 1: 3), based on M400 cement, single-layer, 0.04 m thick for a room of 4x3.5 meters?
We calculate the poured volume: 4x3.5x0.04 = 0.56 m3. To calculate cement, we use the table of the amount of binder per 1 m3 for mortar grades M150 and M200, based on cement: M300, M400 and M500:
| Grade of cement | Solution grade | |
| M150 | M200 | |
| Cement | Consumption of cement per 1 cu. m solution | |
| M500 | 330 kg | 410 kg |
| M400 | 400 kg | 490 kg |
| M300 | 510 kg | — |
As follows from the table, 490 kg of binder (cement) are needed to prepare 1 m3 of M200 brand mortar based on M400 cement. Since we need to prepare not 1 m3, but less - 0.56 m3, the following arithmetic operation should be performed: 490x0.56 = 274.4 kg of M400 grade cement is required to prepare the M200 solution, to fill the floor screed 4 cm thick in a 4x3 room, 5 m
Calculation of the amount of sand based on the above proportion 1 part of cement to 3 parts of sand (moisture content not more than 7%): 274.4x3 = 823.2 kg of sand, required for the preparation of a cement-sand mortar for pouring a 4 cm thick floor screed in a 4x3 room, 5 m
In a similar way, you can calculate the number of components for any thickness of the screed, for rooms of any size - multiply "your" length and width of the room and "your" thickness of the screed layer in meters. Using tabular data, determine the amount of cement, and then determine the amount of sand based on the proportions.
Helpful advice! To increase the wear resistance of the screed, it is especially important for the “finishing” floor screed, without fail, carry out ironing of its upper layer.
The hardware technology is as follows:
Thus, a hard, wear-resistant and very durable crust is formed on the surface of the screed, which reliably protects the screed from abrasion and other mechanical influences.
Present to your attention, online calculator floor screeds, this program is indispensable for builders, especially those who prefer to do everything by hand. Perhaps, for a master who does similar work every day and it will not be difficult to calculate on a piece of paper, as needed, sand, cement mixture and water to form the required amount of solution. But most often, in order to calculate the cement for the screed, even a professional will need to look into the directory. Our online calculator allows you to quickly and easily maximum precision determine the required amount building material and save even at the planning stage.
A screed is a layer of floor covering (most often a cement-sand mortar), which serves to level the surface and stiffen it. The screed can be both reinforced and without a reinforcing cage, depending on its thickness and load, which will later be distributed to the floor covering.
The usual (standard) composition of the screed is a cement-sand mixture, in other words, it is cement mixed with sand and water in certain proportions. Not many people know that if you mix the solution without observing the right proportions, then this can lead to sad consequences, for example, if the amount of sand is significantly reduced, the screed will become very brittle and this will lead to the fact that it will begin to crumble and peel off.
In order to avoid such consequences, we have developed a floor screed calculator. With the help of the data obtained, you can easily independently calculate the necessary building material, mix the mixture and perform the installation.
Screeds are different: leveling, for underfloor heating, for a garage, for a basement, etc. Of course, a leveling screed cannot be made from the same mortar as a garage screed, because the loads are different. But in order not to complicate things, you can resort to generally accepted rules:
The brand for all ties should be M 100-200, for garages and rooms with a large "pressure load" M 200-300. The table shows the ratio of cement and sand in the mortar for screeds, for convenience translated into volume. In other words, 1 bucket of cement / 3 buckets of sand is a universal recipe for a good solution.
This online calculator is designed to calculate not only the cement-sand mixture. If you plan to use ready-mix, with this program, you can determine in advance the amount that you will spend on when laying. This will allow you to account for all costs in advance.
Sometimes, in order to perform a complete calculation of the floor screed, it is necessary to take into account not only the mixture, but also the reinforcement cage. Most often, a finished mesh is used in a screed for reinforcement. And not everyone knows the rules of its device, desired diameter and overlap. This online calculator allows you to calculate the number of reinforcing meshes you need. This will also allow you to take into account the additional costs of arranging the floor screed at the planning stage.
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An online calculator will help you quickly find out how many cubes of concrete you need and calculate the volume. Thanks to a quick calculation, you will know the number of cubes, you only need to set the data and thickness concrete slab and get the finished result. The calculator calculates concrete cubes for floor screed.
In order for construction work to proceed efficiently and without delay, it is necessary to provide the necessary amount of building material. When carrying out a floor screed, you need to know how much concrete is needed to complete this work.
How to calculate the number of cubes of concrete correctly in order to avoid unnecessary costs and availability poor quality material? Calculations can be made very simply using the online concrete cubic capacity calculator.
Using the concrete volume calculator, you can make the most accurate calculation in a few minutes. necessary materials for construction. To do this, you need to enter in the prepared table geometric the dimensions of the area of \u200b\u200bthe room, using the formula we find out the area m 2 and enter this value. We measure the average thickness of the screed and enter this value in the table.
C is the height of the slab
In this way, the calculation of the cubic capacity of concrete with a calculator is performed in a matter of minutes, now you will find out how much concrete mix you need to purchase. Please note that the concrete thickness in the calculator table in meters is indicated by default!
So that the final result of calculating the volume of concrete for construction works on the floor screed has not changed radically, several factors must be taken into account in such work:
If you want to compare the data obtained with the calculation of the cubature of concrete with an online calculator, then for this you need to take the data on the area of \u200b\u200bthe room for floor screed and multiply by the desired layer thickness.
Area formula But in fact, not everything is so simple, a complicating circumstance in such a case will be the definition required thickness screeds, but for different type buildings will be different.
The features lie in the expected load on the floor, for example, in residential premises these figures are up to 5 cm, for the strength of the coating, and in non-residential premises - half as much.
Thus, if the area of \u200b\u200bthe room is 20 m 2, then with a thickness of 5 cm, the final figures will be as follows: 20 m 2 * 0.05 m = 1 m 3, that's how much mixture is needed for floor screed.
Before making a calculation of the amount of concrete for the screed, you need to decide which brand of mortar to choose. The best option there will be a solution marked M 150 or M 200, such a mixture can be obtained from M400 cement, if mixed with sand in a ratio of 1: 3, or to two parts.
Considering the weight of one cube of each component unit separately, we obtain the following data: if we take the average figures - 1300 kg for cement and 1625 for sand, then we get 325 and 1220 kg of each component, respectively.
When preparing materials, shrinkage of the solution must be taken into account, which often gives a result less than expected by 10%. It is necessary to make an appropriate reserve, so that later you do not separately make a new batch.
When calculating the volume of concrete with a calculator or manually, you need to carefully double-check the data, and only after making the final purchase of building materials. And in this situation, it's not even about money, but about the quality of the work done, how reliable and durable the floor will be.
If you use a calculator to calculate the floor screed, you must first decide which brand to make the screed, how to strengthen it, how economically you want to approach this matter.
To save concrete on half the floor, you can add a large fraction, for example, gravel or slag.
If we talk about the mass of the screed, then it can be done independently, we use the following proportion: we put two parts of sand and three parts of crushed stone, or screenings, on one part of cement. It is also possible to make the composition only from sand and cement, each master has his own methods, taking into account the characteristics of the initial state of the place for laying the floor. Calculate faster right amount sand and cement.
In order to strengthen the screed, a reinforcing mesh, fiber is used, such material is attached to the base, and the fiber interferes with the concrete for the screed.
When laying the cement mixture, the base must be dry and clean, and best of all with special penetrating compounds that will ensure good connecting function with laying mix.
There is a more economical and faster option. This method is very suitable for apartments and houses where it is required in as soon as possible make repairs.
Conclusion
Now you know how to calculate the cubic capacity of concrete with a calculator online or do it manually using simple mathematical calculations. Fast and high-quality repairs to you, be careful and follow the safety rules when working with cement mortar!
