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Consumption of mortar per square meter of masonry. Consumption of mortar for masonry

In addition to the cost of a brick, the builder is no less keenly interested in how much mortar is needed for masonry from different materials? Undoubtedly, the larger the material, the less masonry mixtures are needed, and if we are talking about blocks that are laid on glue, then the minimum consumption is laid.

Consumption of mortar for laying bricks

The most popular masonry material is still available cement mortar, the consumption of which is calculated per 1m 3. When laying facing bricks, the consumption per 1 m 2 is also considered. To the traditional brickwork the consumption of the mixture can be quite different, it is worth considering not only the format of the brick, but also the presence of voids, water absorption, the construction season.

Even the amount of mortar spent often depends on the manufacturer, because the straightness of the stones also imposes adjustments on the laying speed and the thickness of the joints of 8-12 mm. Consumption rates are prescribed in SNiP 82-02-95, these indicators in practice are often unattainable, so professionals recommend purchasing a masonry mortar with a margin.

To begin with, it is necessary to note two main theses that will help you choose a brick according to the economy of the solution:

The larger the brick, the less mortar goes into the masonry;
The more voids in the brick (in%), the higher the mortar consumption will be.

One of the most practical options is karmic or silicate stone (double brick) with an optimal strength grade. The design allows you to save up to 18% of the solution.

Volume of mortar per brickwork

The consumption of mortar for brickwork directly depends on the thickness of the wall - half a brick, one brick, one and a half bricks, two and two and a half bricks.

Ordinary brick solid 250x120x65 mm(404 pieces in a cube) requires the specified amount of mortar per 1 cubic meter of masonry:

0.189 m 3 of mortar for laying in half a brick (masonry thickness 12 cm);
0.221 m 3 for laying in one brick (25 cm);
0.234 m 3 for laying one and a half bricks (38 cm);
0.240 m 3 for laying in two bricks (51 cm);
0.245 m 3 for laying two and a half bricks (64 cm).

In other words, mortar consumption per ordinary single brick about 0.0006305 m 3 solution. Converting to liters, we can say that the consumption of cement-sand mortar for masonry 1 m2 (1 brick thick) is 75 liters, with a masonry thickness of 1.5 bricks 115 liters. Today calculate the amount of solutions special calculators help.

Thickened brick (one and a half, modulated) size 250x120x88 mm requires a given amount of mortar per 1 m3 of masonry:

0.160 m 3 mortar for laying in half a brick (masonry thickness 12 cm);
0.20 m 3 for laying in one brick (25 cm);
0.216 m 3 for laying one and a half bricks (38 cm);
0.222 m 3 for laying in two bricks (51 cm);
0.227 m 3 for laying two and a half bricks (64 cm).

From a comparison of these tables, we can conclude that the use of thickened bricks is beneficial not only upon purchase, but also significantly affects the consumption of mortar. In addition, one and a half bricks provide a minimum number of seams in the wall, which reduces the heat loss of the wall. In practice, these figures may differ, since a hollow brick can "absorb" the mortar. Filling voids in brick is undesirable if you want to maintain the thermal efficiency of the walls. To avoid the solution flowing into the voids, it is necessary to use masonry nets. The greater the percentage of voidness of the brick, the greater the consumption of masonry mortar.

Consumption of cement for brickwork

Masonry mortar consists not only of cement, but it is this component that makes up the lion's share of the cost of the mortar. In most cases, the mortar is made directly on the construction site, so it is simply necessary to know the consumption of cement. As a rule, cement M400 or M500 is used, according to SNiP, about 8 bags of cement weighing 50 kg (approximately 300-400 kg / m 3) are needed to get a solution cube. Consumption rates of cement for mortar also directly depend on its density, therefore, the higher the brand of concrete, the greater the consumption, but the final strength of the masonry is also higher.

How much cement is in one cube of concrete?

The amount of cement in a cube of concrete depends on its grade, the higher the grade, the more cement in concrete. Builders usually consider 50 kg bags.

M100 - 166 kg
M150 - 205 kg
M200 - 241 kg
M250 - 300 kg
M300 - 319 kg
M400 - 417 kg
M450 - 469 kg

Calculation of the amount of cement

A cubic meter is 1000 liters. A construction bag with cements usually weighs 50 kg. The volume of the cement bag is 36 liters. It is enough to make a simple recalculation: 1 liter of cement \u003d 50 kg / 36 l \u003d 1.4 kg.

Therefore, in order to properly prepare a mortar in a ratio of 1: 3, it is necessary to take a cube of sand and 1/3 cube (333 liters of cement).

So, 333 liters must be multiplied by 1.4 kg / l, as a result, you will get a cement consumption of 466 kg or 9.32 bags per cubic meter of laying mortar. Thus, you can calculate the amount of cement if you know the ratio of the components.

If you need a solution with proportions of 1: 4, then you need to take: a cube of sand, ¼ of cement (250 liters). Multiplying 250x1.4 kg / l \u003d 350 kg of cement for a cube of masonry mortar 1: 4 (when converted to bags - 7 pieces).

Consumption of mortar for laying blocks

One way or another, the consumption of mortar for laying blocks is approximately two times less than for brickwork. Unlike bricks, blocks have different size formats depending on the manufacturer. Manufacturers, as a rule, report the amount of mortar for masonry of certain materials of atypical size. The adhesive solution, depending on the manufacturer, requires 15-20 kg per cube with a layer thickness of 2 mm. If the blocks have curvature, then the layer thickness and consumption will increase accordingly.

How much glue is needed for gas blocks?

The consumption of glue for laying aerated concrete blocks is 20.5 - 28 kg / m3 for walls 400-500 mm thick. Therefore, in comparison with other materials, gas blocks are considered the most practical, especially if they are autoclaved aerated concrete blocks with a clear shape and good density. You can find and buy such stones with delivery on our website.

Consumption of glue for foam blocks

When laying foam blocks solution consumption mortar consumption is 30-40 kg / m3 with a standard wall width of 400 mm. Mortar consumption per 1 m3 of block masonry can also be calculated. Blocks with poor geometry cannot be placed on the adhesive mortar, so it is necessary to use a classic cement-sand mortar. United mortar consumption rates for block laying does not exist, the dependence on the thickness of the walls, the size of the block and its porosity, water absorption imposes its own adjustments.

High-density aerated silicate blocks manufactured according to German technology, as well as autoclaved aerated concrete, are distinguished by minimal requirements for the amount of mortar. For a twin block, the standard consumption of the adhesive mixture is 30 kg per 1 m3 of masonry.

At the design stage of structures, an estimate is made that determines the costs of building any object. The volume of material consumption is one of the key sections of design and estimate documentation.

When building a brick house, the main consumables are brick and cement mortar.

At the same time, mixtures not only based on cement can be used as a binder. Knowing what and how much you need to purchase to provide construction with a solution of even a small structure will help the consumption rates of the solution per 1 m 3 of brickwork.

Types of mortars for brickwork

The binder mass compositions may include, in addition to cement and sand, other components.

Cement-sand

The quality of the solution depends on the brand of cement

Cement is mixed with sand and water is added. This is the most common way to prepare a viscous mass. The hardened mixture forms a strong connection between the bricks.

The construction industry produces cement of various grades. The higher the brand, the stronger the masonry. prepared in the ratio of cement to sand 1:4.

The slightest deviation from the proportion of the number of components of the mixture can lead to cracks in the seams between the bricks, and this is fraught with the destruction of the wall.

lime mixture

Lime improves the plastic properties of the solution

Quicklime is an excellent substitute for a hardener such as cement. The use of lime gives the solution high plasticity.

The disadvantage of using lime is considered to be a high fear of exposure to precipitation, therefore, a mixture based on lime is used for building walls indoors.

Combined solution

This method saves on cement

Mix cement, quicklime and sand. This achieves significant savings in Portland cement. In addition, the mass forms strong and moisture-resistant seams in the masonry.

Various polymer additives in the dry mix of the binder material increase such qualitative characteristics of the viscous material as frost resistance, moisture resistance, and others.

The consumption of mortar for brickwork depends, in particular, on, which is mainly of three types:

As the number of storeys increases, the thickness of the walls decreases, since the maximum load will be on the fences of the lower floors, and the minimum on the upper walls.

Purpose of fences

Walls are of two types: load-bearing fences and partitions. The laying of the supporting structure requires the use of high grades of cement. The higher the brand, the more expensive.

Mortar consumption rates per 1 m 3 brickwork

The consumption of the mortar depends on the thickness of the brick walls. Based on many years of experience in construction, indicators have been developed that we will present in the form of a table:

	Consumption of materials per 1 m3 of masonry
Wall thickness, mm	Brick, piece	Solution, m3
125	420	0,19
250	400	0,22
380	395	0,235
510	394	0,24

The amount of mortar when finishing the wall with facing bricks is calculated per 1 m2 of the finishing surface.

Masonry mixture preparation technology

If the construction conditions allow you to prepare the solution in small batches, then use containers of small volume. To do this, you can stir the mixture in a trough or an old bath. For more information on preparing the solution, see this video:

With a large daily output of a viscous mixture, a concrete mixer is installed at the construction site.

A dry mixture of cement and sand is placed in the container. Lime and plasticizers fall asleep if necessary. While mixing, water is gradually added until a creamy homogeneous viscous mixture is obtained.

For brickwork, ready-made dry mixes are purchased. Their use is expedient on small volumes of construction.

If the construction is large-scale, then it is better to purchase cement and sand separately.

Attention should be paid to the quality of packaging with cement. The denser the packaging, the greater the confidence in the safety of Portland cement and the absence of solid lumps in it.

The strength and durability of the structure depends on the quality characteristics of the cement mortar. Therefore, it is important to purchase in advance all the necessary components for its preparation. The calculation of the mortar for masonry is carried out on the basis of determining the consumption of cement, the hygroscopic properties of which require the accuracy and efficiency of the workpiece in order to avoid the unsuitability of the mixture.

The calculation of the mortar for brickwork depends on the project, the type of brick and the brand of cement. As a rule, for the construction of brick walls, a mixture is used, the hardness of which varies between M50, M100.

Scheme for calculating mortar for bricklaying

Initially, the preparation of cement-sand essence involves determining the desired cement grade, the choice of which directly depends on the expected strength of the finished composition. Its class should be two, three times the hardness of the mixture. So, to obtain a cement mortar with a hardness of M100, it is necessary to purchase cement of grade properties M200 or M300. The most rational solution would be to use the M400 brand. Its certain percentage in the preparation of the mixture allows you to achieve the required strength factor.

The next step involves calculating the amount of mortar for masonry, which is determined based on a consumption of 0.25 m3 per square meter. m. brickwork.

As practice shows, for laying a wall one brick thick, 0.21 cubic meters will be required. solution. Masonry in two bricks provides for the consumption of 0.23 m3 of cement-sand mixture. It is important to consider that regardless of the type of mortar used (standard three-component, lime or with an admixture of plasticizers), the volume flow will be the same. At the same time, the amount of the mixture depends on the structural features of the brick. Its hollow version will significantly increase the consumption of cement mortar.

The masonry mortar calculator will allow you to make calculations regarding the total volume of the cement mixture. The reliability of the result obtained is determined by the accuracy of indicating the measurements of the size of walls, window and door openings. The presence of concrete wall belts provides for the calculation of their height from general measurements.

For the calculation, it is necessary to set the parameters of the length and height of the walls in meters, the thickness of the masonry, which is determined based on the thickness of the brick.

The construction online calculator provides the ability to quickly and conveniently calculate the rate of cement mortar. Among other things, determining the consumption of brickwork will allow you to navigate the cost of masonry and lay the required budget for the construction of the building.

Each builder, before starting the construction of a building, thinks about how much the necessary materials should be purchased in order to avoid the fact that after the construction is completed, he will have stocks of cement or bricks. To do this, you need to clearly calculate the amount of all materials that will be involved in the construction.

In our article, we will focus on how to determine the consumption of mortar for bricklaying.

Correct calculations

To correctly perform all the calculations, you will need a tape measure and calculation skills. When performing calculations, it is necessary to determine what type of work will be performed, because the quality characteristics of the solution depend on this. solutions can be: concrete, slag-cement, sand-cement, and others. The strength of these solutions will depend on the brand of cement and the quantitative composition. For example, for a concrete screed, when pouring floors, concrete of the M200 brand is most often used, to prepare a mortar for brick or cinder block masonry, a mixture with a hardness of M50 to M100 should be used. To prepare the mixture from which the cinder blocks themselves will be formed, a solution with a hardness of the brand also from M50 to M100 should be used. For plastering walls, you should take a solution with a hardness of M50 to M100. After you have determined which concrete solutions you will work with, you can begin to calculate which cement, which brand you will need to purchase.

Sand-Cement Mix

To make a sand-cement mixture, you should purchase cement with a hardness grade that will be 2 or 3 times higher than the hardness of the finished mortar. So, if you need to prepare a mortar with a hardness of M100, you must purchase cement with a grade of M200 or M300. If you are going to cast concrete blocks, then the cement hardness grade should be 6 or 8 times the grade of the future concrete solution.

After we have resolved all these issues, we can already proceed directly to the calculation of the consumption of the solution itself. To perform a floor screed or pour a foundation, in order to find the required volume of mortar, it is necessary to multiply the length value by the width, and then by the height of the proposed concrete layer. To calculate the amount of mortar for brickwork, it must be assumed that approximately 0.25 cubic meters of mortar will be consumed for each square meter of masonry. For laying concrete blocks, the consumption will be much less, about 0.05 cubic meters per square meter. The most consumed brand of cement is the M400 brand, since using this particular brand it is possible to prepare solutions with a very different hardness grade, using only different percentages.

Tabular ratios

Now we give some tabular relationships that clearly show the mortar consumption for bricklaying. For laying one cubic meter of a brick wall one brick thick, you need 0.221 cubic meters of mortar, for laying 2 bricks thick, you need 0.24 cubic meters of mortar. There are three types of mortars for laying bricks: a three-component mortar consisting of cement, water and sand, a cement-lime mortar, a mortar with the addition of plasticizers. Regardless of which brick mortar you choose. volumetric characteristics of the finished solution will be the same, detailed consumption can be found in the following table,

As the Russian proverb says: "Measure seven times, cut once." This principle will never become obsolete. Every builder knows that before starting this or that work, you need to carefully calculate, study and draw up a plan. What is it for? One of the reasons is to find out the right amount of consumable material, calculate how much it will cost, and purchase everything you need. If you are planning to build a house, you may be interested in the question, what is the mortar consumption per 1 m 2 of brick laying? After all, you need to buy in advance all the components for the mixture, such as sand, cement and other consumables. Please note that the quality of the finished wall is influenced by such factors: the quality of the material and the quality of the mortar. If the wall is built incorrectly, then cold bridges may occur. Therefore, it is important to properly prepare the solution and apply the right amount. After reading this information, you will find out the mortar consumption for bricklaying.

A little about the factors affecting consumption

The mortar is the link between the bricks. Without it, it is impossible to build a wall. It must be of high quality, properly prepared and have the right consistency. One of the important points to consider when calculating is its type of composition. The most common are 4 types of solution:

Cement-sand mixture. It consists of cement, sand and water. Such a composition can be called the most durable, if you strictly adhere to the application technology. And not that there is a danger that it will crack.
Limestone mix. There is no cement in its composition, it is replaced by quicklime. The mixture is quite plastic and easy to work with. But, there is one minus - the rain will easily wash it. That is why it is used only for interior work.
mixed solution. The composition of this mixture is combined, and combines materials from the first two types. The result is a quality solution that is superior to the first two.
Composition with plasticizer. Sand with a fraction of 2 mm and cement are additionally mixed with a polymer additive, which increases its plasticity.

These are the most popular mixtures that are used in construction. But, you should know that not only they affect the consumption. An important factor is the brick itself. Its size, format, ability to absorb water and the presence of voids directly determine how much mortar will be in 1 m 2 of brickwork. In general, the consumption per 1 m 3 of brick is 0.2–0.25 m 3. It all comes down to the fact that the thickness of the wall plays a role, whether it is half a brick, one, one and a half or two. The greater the thickness, the greater the consumption. The same applies to the shape of the brick. For example, if it is large, then the flow rate is reduced, if it is with holes, then the flow rate increases significantly. How is bricklaying mortar calculated?

Solution consumption per 1 m3

To find out the amount of mortar per 1 m 3 of brickwork, consider the following data. An ordinary brick has dimensions of 250 × 120 × 65. There are some standards that show how much mortar is needed per 1 m 3 of brickwork:

0.189 m 3 when building in half a brick (120 mm);
0.221 m 3 during construction in one (250 mm);
0.234 m 3 during construction in one and a half (380 mm);
0.240 m 3 during construction in two, (510 mm);
0.245 m 3 during construction in two and a half, (640 mm).

It turns out that for 1 standard brick, there are 0.0006305 m 3 of mortar. If we translate this into liters, then for 1 m 2 12 cm thick, 75 liters of the finished mixture fall, and when the thickness is 1.5 bricks (380 mm), the consumption increases to 115 liters.

If we talk about thickened products (modulated), then with their dimensions 250 × 120 × 88, the consumption is as follows:

0.160 m 3 composition, when working in half a brick (120 mm);
0.20 m 3 composition, when working in one, (250 mm);
0.216 m 3 of the composition, when working in one and a half, (380 mm);
0.222 m 3 composition, when working in two, (510 mm);
0.227 m 3 composition, when working in two and a half, (640 mm).

Based on these data, it is clear how the size of the material affects the consumption of mortar, per cube of brick laying. There is a certain pattern: the larger the area, the less composition is required. Knowing this data, you can prepare the right amount of masonry mix. You just have to calculate the total footage and multiply it by the consumption per 1 m 3. Now you are prepared and can purchase material for work. Below is a table that will help you find out the consumption of cement and additives to obtain the ideal consistency of the composition.

How to know how many bags of cement to buy

Now, let's find out the cement consumption per 1 m 2 of brick laying. To do this, you must take 3 steps:

Completely calculate the volume of masonry.
Determine the volume of the required amount of the mixture.
Given the selected ratios of the components, calculate the amount of cement.

For example, you need to calculate how much cement it will take to build the outer walls of a house measuring 10 × 12 m. At the same time, the height of such a one-story building is 3.2 m, and standard bricks 250 × 120 × 65 are used as material. The thickness of the walls is 51 cm. So, point 1 says that you want to know the total volume. From school, we know the formula for finding the volume: the length of the walls is multiplied by its height and thickness. In our case, these are the following indicators: (10 + 10 + 12 + 12) × 3.2 × 0.51 = 71.808 m 3. It turns out that the required number is 71.808 m 3 . It is time to find out the total volume of the solution.

Based on the data above, the consumption of the finished mixture per 1 m 3, with a wall thickness of 51 cm, is 0.240 m 3. You can find out the total amount by multiplying the volume of masonry by the consumption per 1 m 3. Here's what should come out: 71.808 should be multiplied by 0.240. Using the calculator, we get 17.233 m 3. This number indicates how much grout will be required for the job. From it it is required to subtract only the amount of cement.

note! Experts do not advise buying material back to back. It is better to take 5-10% more, taking into account unforeseen circumstances

If the selected proportion is a ratio of 1:3, then the following is obtained: 17.233 must be divided by 4. Now you know how much cement you need for a quality mortar. This number is 4.308 m 3 . It remains to go to the store and buy as many bags of cement as needed. But cement is not sold in cubic meters. The material is packaged in bags of 25 or 50 kg, so our indicator should be converted to kilograms. To do this, you need to know the density of the hardener. As a rule, on average, this figure is 1300 kg / m 3. We make calculations: 4.308 × 1300 \u003d 5600 kg. Now, we divide 5600 kg by 50 (the number of kg in one bag) and we get a consumption of 112 bags.

That's all, you understood the system, it remains only to change the numbers, substitute your own and make the necessary calculations. All that is required is a calculator at hand and ready-made data. If everything is done correctly, then you can significantly save your money and avoid the fact that excess materials remain in the warehouse.