Consumption of glue for aerated concrete per 1 m3

Preparation of the solution

Before starting work on the preparation of a masonry mixture for foam blocks, you should make sure that you have all the necessary tools. You will need:

• Mixing container - a large trough or basin, if available, it is better to take a concrete mixer;
• Bucket;
• Construction mixer or drill;
• Shovel.

The ready-made glue must be used within 40 minutes; it is applied to the surface in a thin layer using a notched trowel.

Stages of mixing a ready-made adhesive solution purchased from a store:

• Pour the dry mixture into a dry, clean container and dilute it with water, in a ratio of 1 kg of powder to 200 ml of water. A bag in a standard package weighing 25 kg will require approximately 5 liters of water;
• Stir the mixture thoroughly until smooth using a mixer or drill with a special attachment;
• Leave the resulting mass to rest for 10 minutes, during which time the mixture will gain the required consistency;
• Stir the solution again - you can use it.

The preparation of the cement slurry is not very different from the ready-made mixtures. Cement and sand are put into a large container, the main proportions of the solution for laying foam blocks are 1 part of cement and 4 parts of sand. Mix the dry ingredients thoroughly.

Before pouring water into the mixture, additives are diluted in it - plasticizers and foaming agents. You can not use them, but then the solution will lose a number of properties - moisture resistance, resistance to temperature extremes and strength.

Mix the mixture well until smooth, it is important to ensure that no lumps form. The solution can be used within a few hours.

Preparation of the solution

Types of mixtures for laying blocks of expanded clay concrete:

1. Ready-made powder solutions;
2. Prepared mixtures with your own hands.

Two types of mortar are popular with consumers. The main thing is the correct selection of the manufacturer's brand or ingredients in order to prepare the composition.

To prepare the concrete mixture on your own, it is recommended to use a concrete mixer, this unit will allow you to thoroughly stir all the constituent parts. The quantity and quality of the cement slurry affects its strength. In addition to cement, lime is used as a binding component, but such an element can collapse under adverse environmental conditions. Lime has the properties of increasing the thermal insulation qualities of the solution, for this you need to take one part of lime and one part of dry cement, add 4 parts of sand. Better to use cleaned fine grained sand. This method is the simplest and most popular.

The mortar for masonry of expanded clay concrete blocks is distinguished by its density:

• If you want to prepare a mixture of 25 strength, then the ratio of sand and cement will be 5: 1.
• For a mixture of M 50, the components are selected 4: 1.
• For higher strength M 75, the indicator will be 3: 1.

It is recommended to add cold and pre-purified water for the preparation of solutions. Its consumption will depend on the required volumes and capacity for mixing the solution. Approximately 25% of it should be included in the total volume of the mass.

Advice

• the preparation of solutions is carried out before they are used;
• there is no need to make a workpiece long before starting work, since the solution has the inherent properties of fast solidification - literally in 1.5-2 hours. The necessary qualities will be lost.

Work progress

1. A small amount of water is poured into the expanded clay concrete mixer.
2. Then the required amount of sand and concrete is poured.
3. Everything is thoroughly mixed, this method does not allow the formation of lumps.
4. After mixing is complete, the remaining water is added to the mixture.

On average, the consumption of solutions per 1 cubic meter of masonry blocks made of expanded clay concrete will be 40 kg.

Type of glue used

The amount of adhesive mass, regardless of the form of delivery (dry mix, ready-made solution), is determined in kilograms.

First, they choose the type of glue: there are several of them, and they differ from each other in the basis.

Cement

For a number of reasons, this type is the most popular:

• is cheap;
• easy to work with;
• does not require leveling the base (the glue itself can act as a leveling mixture).

It is supplied as a dry mix intended for mixing with water or, if increased moisture resistance is required, with liquid latex.

Depending on the thickness of the layer, the need for it is 1.9 - 7.6 kg / sq. m (data for Ceresit glue).

Dispersive

An expensive type of adhesive, especially strong and solvent-free. Created for:

• external tile material, which has a significant weight due to the pronounced relief;
• cladding problematic bases: metal, glass, wood, plasterboard, plastic and others with a smooth surface.

Delivery form - ready-made solution. Consumption - 2 times lower than that of cement glue.

Epoxy

Another expensive special-purpose glue.

It has the following advantages:

• significant strength: in this respect it is not inferior to ceramic tiles;
• high adhesion: used for gluing smooth surfaces;
• absolute moisture resistance: used for cladding structures that are exposed to the direct action of water for a long time or constantly;
• transparency: does not change the color of porous tiles and is suitable for gluing glass;
• the ability to maintain working qualities at low temperatures;
• no shrinkage.

The adhesive composition is prepared immediately before use from two components - the base material and the catalyst. Depending on the layer thickness, consumption ranges from 2.4 to 6.4 kg / m2.

Polyurethane

Distinctive features of this composition:

• chemical resistance;
• moisture resistance;
• plastic;
• wide range of operating temperatures: from -550C to + 1250C.

Polyurethane compositions are used for facing "warm floors" and structures subject to deformation or vibration.

Supplied ready-made or two-component (preparation required). With the smallest layer thickness (light tiles), the consumption is 2.5 kg / m2, with a larger layer (heavy tiles) - 3.5 kg / m2.

Calculation of the pile foundation

Select the type of grillage:

Grillage parameters:

Grillage width A (mm)

Grillage length B (mm)

Grillage height C (mm)

Grillage thickness D (mm)

Concrete grade

M100 (B7.5) M150 (B10) M200 (B15) M250 (B20) M300 (B22.5) M350 (B25) M400 (B30) M450 (B35) M500 (B40) M550 (B45) M600 (B50) M700 ( B55) M800 (B60)

Poles and piles parameters:

Number of poles and piles (pcs)

Column diameter D1 (mm)

Post height H1 (mm) Post base diameter D2 (mm)

Post base height H2 (mm)

Reinforcement calculation:

Rebar length (m)

Calculation of the grillage formwork:

Board width (mm)

Board length (mm)

Board thickness (mm)

Calculate

Consumption rates for different solutions

Depending on what the concrete is for, 1 m3 of mortar may contain a different volume of cement. In modern construction, concrete solution is used to implement four tasks: pouring the foundation, laying building blocks, pouring the screed and making plaster. For each of these types of work, it is assumed that a certain type of solution is prepared with a specified volume of cement.

The largest consumption of cement per cube of mortar is obtained in the preparation of a mixture for masonry or plaster. For pouring a foundation or screed, it is important to use large fillers (gravel, crushed stone, slag), which reduces the consumption of cement. The brand indicates the purpose of the solution (the properties of concrete and the main characteristics depend on it).

concrete according to GOST:

• М100 - 170 kilograms of cement
• M150 - 200 kilograms
• M200 - 240 kilograms
• M250 - 300 kilograms
• M300 - 350 kilograms
• M400 - 400 kilograms
• M500 - 450 kilograms

On plaster

A standard plaster mortar is prepared from 3 parts sand and 1 part cement. If the layer is made with a thickness of no more than 12 millimeters, then 1.6 kilograms of M400 cement and 1.4 kilograms of M500 cement are weighed per 1 square meter of plaster. The volume of solution per cubic meter of masonry can be calculated as follows: 1m2 x 0.012 m = 0.012 m2 = 12 liters.

On masonry

For a square meter of brickwork one brick thick, you will need at least 75 liters of M100 mortar. is 1: 4. Thus, it is 250 kilograms per cubic meter of sand. How many cubes of solution are needed in general is considered by the size of the building.

Water is taken in the volume of half. So, if you knead the solution using buckets, it turns out like this: 1 bucket of M500 brand cement, 4 buckets of sand, 7 liters of water.

For the foundation

To prepare a solution for pouring the foundation, everything must be calculated correctly. Usually, a solution of the M100-M300 brand is used. The strength of M100 is sufficient for low-rise buildings, M150 and M200 are suitable for a building with several floors. The higher the grade, the stronger the structure will be. For mixing, take cement M300 / M400 (1 part binder and 3 parts sand) or M500 (1 part binder and 5 sand).

Cement consumption per cubic meter of solution:

• M50 (based on M400 cement) - 380 kilograms
• M100 (based on M300 cement) - 214 kilograms
• M200 (based on M400 cement) - 286 kilograms
• M300 (based on M500 cement) - 382 kilograms

Such calculations are relevant if the mixture is prepared according to the proportion: 1 part of cement, 2-4 parts of sand, 3 parts of crushed stone / gravel.

For screed

The proportion for mixing is as follows: 1 part of cement and 3 parts of sand. Here is an example of correct calculations. So, you need to fill the surface with 3 by 4 square meters (12 turns out) with a layer thickness of 30 millimeters.

Calculation stages:

• Determination of the required volume of concrete solution: 12 m2 x 0.03 m = 0.36 m3.
• Choosing a concrete grade - we take M200, we prepare it from M500 cement, which needs 410 kilograms.
• Counting the number of bags of cement: 410 kg x 0.36 m3 = 148 kg / 50 = 3 bags (almost).
• How much sand is needed: 1600 kg / m3 (weight of a cubic meter of the mixture) x 0.36 m3 (the required amount of the mixture) = 576 x 0.75 (proportion of sand in concrete) = 432 kilograms. A cube of sand solution will take about 1200 kilograms.

The choice of adhesive for foam concrete

The best way to buy a good adhesive is to do practical tests. You need to purchase several brands and glue a pair of blocks with a ready-made composition. After a day, you need to break the connection and inspect the place of the fault. If the parts are broken along the seam, you should not use such glue in the future. A connection where a partial fracture of the seam with deformation of the foam concrete itself has occurred can also be considered bad. Only the block should suffer, and the glue seam should remain intact, in which case the composition is trustworthy.

Another test is carried out as follows: dilute 1 kg of each dry mixture, fill the same jars. After a day, the containers are weighed. Where the weight is lightest, there is the highest quality adhesive. Moisture quickly leaves it, therefore, the thermal conductivity will be at a height

When it is not possible to test adhesives, when choosing, you should pay attention to the reputation of the manufacturer, frost resistance (if it is important), the size of the fraction (it should be small)

Which glue for foam blocks is better

A wide selection of dry mixes for bonding foam blocks confuses developers. How not to make a mistake when buying glue? What is better to put foam blocks on?

Remember these simple rules:

• do not pursue cheapness;
• buy goods from well-known manufacturers;
• consider the time of year during which construction work will take place. For the winter, choose a frost-resistant composition;
• after calculating the required number of bags, take one in reserve.

For you - an overview of popular brands of dry mixes and adhesives for laying foam blocks. These compositions have earned positive reviews from professionals.

Volma

Adhesive for Volma foam blocks consists of fractional sand, cement, high quality dispersion additives and fillers. Manufacturers recommend making a seam with a thickness of 2 to 5 mm.

Construction glue Volma-block is often used by builders when laying blocks and slabs of high-quality aerated concrete. The composition is suitable for leveling surfaces and masonry walls. Release form - 25 kg bag.

Adhesive foam titanium

After appearing on the market, many builders were skeptical about the new product from the Selena company. But, after the first experiments, doubts about the quality and effectiveness of the innovative product were dispelled.

The mounting adhesive-foam Titanium for foam blocks replaces cement-based mortars. It is enough to apply strips of the new product to the foam blocks and simply glue them. The finished structure turns out to be durable and reliable. Construction is progressing very quickly.

The volume of the balloon is 750 ml. Price - 336 rubles.

Experts recommend observing several conditions when building a house from foam blocks using Titan mounting foam glue. Necessarily:

1. Entrust the work to professionals. Low qualification of the craftsmen will lead to disastrous results.
2. Choose foam blocks with a perfectly flat surface.
3. The foam layer should not exceed the recommended thickness.
4. Cover the outer joints between the blocks with cement: the foam deforms under the influence of sunlight.
5. Lay the first row of foam blocks only on cement mortar. Violation of the rule is unacceptable. Under load, the titanium mounting adhesive foam deforms.

Knauf

Many builders recommend Knauf Perlfix foam block glue. High adhesion quality is provided by a gypsum base and polymer additives.

The use of Perlfix Knauf glue allows you to quickly level the walls without installing a frame. Another advantage is the environmental friendliness of the composition.

The standard consumption of glue for Perlfix Knauf foam blocks is about 5 kg / sq. m. Release form - 30 kg kraft bags.

IVSIL Block

High-quality glue for laying grooved and non-grooved boards. A dry mixture based on cement is suitable for foam and aerated blocks, foam concrete. The filler is fine sand, the composition contains imported polymer additives that increase adhesion.

The seam thickness is from 2 mm, the position of the glued blocks can be adjusted within a quarter of an hour. With a layer thickness of 2 mm, the consumption will be from 2.5 to 3 kg per square meter. IVSIL Block dry mix is ​​packaged in 25 kg bags.

Tile adhesive

Builders who have been building structures from foam blocks for several years are advised to carefully consider the choice of adhesive composition. If you have not found special glue for foam blocks, take regular frost-resistant tile glue.

Pro Tips:

1. It is possible to use glue only with the correct geometry of the blocks (deviation of no more than 1.5 mm in height).
2. Tile adhesive is suitable for laying foam blocks up to 100 mm in size.
3. Only a highly qualified master can lay foam blocks on glue (including tiled).

How to make a crate for metal tiles? You will find out the answer to this question by reading this article.

And in this article you will read how to cover the roof with roofing felt.

Popular adhesive mixtures

When deciding which glue for gas silicate blocks to choose, it is worth studying the features of current proposals.

Aerostone is a product of the Dmitrov aerated concrete products plant. Cement-based mixture with polymer additives. The product is presented in winter and summer versions.

Adhesive for gas silicate blocks Aerostone

• Thermocube is an adhesive mixture for indoor and outdoor use, designed for thin-joint masonry of walls and partitions based on groove and non-groove gas silicate blocks. The building material is distinguished by high qualities of strength, frost resistance and plasticity. Provides economical consumption.
• Ilmax2200 - glue for masonry of porous concrete blocks, including gas silicate, foam concrete, expanded clay concrete slabs and other wall panels.The frost resistance of the product is 75 cycles, the operating temperature ranges from -30 ° C to + 70 ° C, the temperature for laying blocks varies from + 5 ° C to +25 ° C. The ready-made solution is used within 4 hours.
• Ceresit is perhaps one of the most popular construction brands, a supplier of high-quality mixes for work in various categories. Ceresit CT21 glue is made on the basis of cement; mineral fillers and organic modifiers are included as additives. The product is used for thin-layer masonry of gas silicate wall blocks and other types of aerated concrete panels.
• Knauf is a gypsum-based adhesive that provides strong adhesion to the surface. The products of this manufacturer are in demand due to their competitive quality, although they are sold in an expensive segment. The environmentally friendly Knauf Perlfix adhesive mixtures are easy to apply and allow for quick alignment of blocks.
• IVSILBlock - the mixture is used for laying grooved and ordinary blocks from aerated concrete. Polymer inclusions increase adhesion, and modifying additives impart plasticity to the binder base. The position of the blocks when laying with this mortar can be adjusted within 25 minutes, which is considered a competitive advantage of the material.
• Aeroc is a product of an aerated concrete manufacturing enterprise from St. Petersburg, which occupies a leading position in the domestic market of building resources.
• Zabudova is one of the best adhesives for gas silicate blocks. The products are appreciated for their high performance in winter use at a relatively low cost. The composition perfectly manifests itself at ambient temperatures down to -15 ° C, it is easy to mix and apply, the consumption is more than economical, the seams are not susceptible to weathering.
• Unic Uniblock - the brand manufactures high-quality gas silicate blocks and mortars for masonry, the products are sold in the middle segment.
• Bonolit - a dry concentrate for gluing gas silicate deserves attention for its absolute environmental friendliness of the composition, does not have toxic impurities, and is in demand both in external and internal works.

Adhesive for gas silicate blocks Bonolit

• "Prestige" - the mixture is used for masonry of all types of porous concrete blocks, it is characterized by high frost resistance due to the composition with modifiers.
• "Pobedit" is a multicomponent cement-based adhesive with quartz sand and polymers, in composition it is completely identical to aerated concrete blocks and is able to adhere to the surface with the highest quality, forming a monolithic composition.
• "EK Chemical" - a mixture intended for thick-layer masonry, suitable for work in any season. In addition to the construction of walls and partitions from blocks based on aerated concrete, the composition can be used when installing ceramic tiles and leveling wall surfaces.

Manufacturers

A wide range of adhesives for foam block masonry often confuses finishers. How to choose the right composition? How not to make a mistake when purchasing a mixture? What should the foam blocks be attached to?

First, remember a few simple rules:

avaricious pays twice - don't try to chase cheapness
buy goods from a well-known manufacturer with a good reputation in the building mixtures market
when making a purchase decision, take into account the season and temperature conditions under which the work will be carried out - it is advisable to purchase a frost-resistant composition for the winter

And now let's get acquainted with the creators of the most popular adhesives that have earned positive reviews from professionals around the world.

Volma

Volma is one of the leaders in the construction market, which has won the recognition of consumers in Russia and abroad. The adhesive of this brand consists of selected cement, fine sand, filler and pigments of the highest quality. This compound is used for joints of 2-5 mm.

This glue is used by finishers when assembling slabs from aerated concrete blocks.

It is sold in 25 kg paper bags.

Titanium

When the glue-foam from the well-known brand "Titan" first appeared on the market, most professionals were skeptical about this new product. However, after the first applications, doubts about the quality and exceptional consumer indicators of the composition completely disappeared.

Titan products replace cement mortars, are very easy to use - you just need to apply a strip of composition to the blocks and fix them. At the same time, construction is progressing quite quickly, and the finished structure is durable and stable.

When applying foam glue, it is worth adhering to several rules:

• the surface of the foam blocks should only be flat;
• the layer of glue is applied in accordance with the instructions, do not exceed the thickness recommended by the manufacturer;
• the foam shrinks under the influence of direct ultraviolet rays, therefore, the joints should be sealed outside with cement;
• glue-foam is used only for the second layer of foam blocks. The first one should be applied to a cement-sand mortar, otherwise, under heavy weight, the glue will quickly deform.

Available in 750 ml cylinders.

Knauf

Knauf Perlfix glue provides a high level of adhesion thanks to a plaster base and special polymer additives.

The use of glue does not require preliminary installation of the frame, the work is carried out quickly, and the structure is stable.

The undoubted advantage of the composition is its environmental safety, therefore it is widely used in private housing construction.

The glue is quite economically consumed - for processing a coating of 1 sq. m. only 5 kg of composition will be required.

It is sold in kraft bags with packaging of 30 kg.

IVSIL Block

The glue of this manufacturer has been widely used when laying aerated concrete and aerated concrete blocks. The mixture is a dry powdery composition based on cement with a small content of additives that increase the adhesion of the surface.

It is used for joints from 2 mm, with this glue consumption will be in the range of 3 kg per m2.

When using glue, the position of the foam blocks can be adjusted within 15 minutes from the moment of fixation.

It is sold in bags of 25 kg.

Osnovit Selform T112

It is a frost-resistant compound intended for use in winter. The formed joints can withstand up to 75 freeze-thaw cycles without any problems - this figure is one of the highest among winter types of foam concrete glue.

The adhesive mixture is characterized by a fine filler fraction, due to which it is used to obtain thin joints from 1 mm. This leads to a decrease in the total consumption of the composition - only 1.6 kg of dry glue is required for pasting 1 m2 of foam blocks.

The advantage of the glue is its quick adhesion - the composition hardens after 2 hours, so that construction work can be carried out quite quickly.

It is sold in bags of 20 kg.

Among Russian manufacturers, the Rusean brand is also distinguished as having high quality and cost-effective products.

Consumption of glue for foam blocks per 1m2 / m3

The consumption rate of glue per 1 m2 is approximately 1.5–1.6 kg of dry powder with an applied thickness of 1 mm, therefore, 15–30 kg will be consumed per 1 m³. As we can see, the numbers are approximate, since it is almost impossible to name the exact figure of how much glue is needed per cube of the foam block. But we will allow ourselves to average the indicators - and name a certain weight - 25 kg. This is the weight that one bag of adhesive has. Knowing this, it will be easy for mothers to calculate how much glue is needed for the construction of masonry. And for more convenience, we present to your attention the list below:

• for 1 m² - ≈1.5 kg;
• for 1 m³ - ≈25 kg (one bag).

This is the consumption of glue for foam blocks 20 × 30x60 / 40 × 30x60 - the average figure is 25 kg. But in practice, it can happen in completely different ways.It also happens that about 1.5 bags are consumed per 1 m³. The fact is that this is influenced by certain factors, which we will now list as a list:

• use of the tool. Here improvisation will be out of place - the tools must be used those that are intended for our purposes;
• condition of materials for masonry. Their surface should be even and smooth, but it happens that their condition cannot be called ideal;
• weather. In the cold season, it is better to refrain from such work, especially if you are not a professional in this matter;
• the qualification of the master. This point follows from the previous one. Naturally, in order to carry out such work properly, certain knowledge and experience in this area is required.

The method of applying and preparing the adhesive also affects its consumption. Therefore, when cooking, it is necessary to use only a drill mixer (kneading by hand is a thankless job), and dilute with water until a homogeneous consistency. The composition should not be very dry and thick, but not too sparse and liquid, since - in either case - it will not perform the functions assigned to it.

I have heard the opinion that the composition can be diluted with sand in proportions of almost 1: 1. Allegedly, this will increase the strength and, most importantly, it is cheaper, because less dry powder will be used.

So, this opinion is erroneous. It is impossible to mix in sand (or something else). Otherwise, the composition will turn out to be heterogeneous, the layer is uneven and, as a result, an uneven wall. And this should not be allowed, even if you are pursuing such noble goals as economy or increasing strength. Moreover, there will be no savings here. To even out the layer, you have to make it thicker, because, as they say, that's what it will do.

The composition should be applied to the block surface in an even, thin layer. The thickness is usually up to 3 mm. Naturally, no one specifically measures this indicator, if it is not laboratory research. In this business, as in any other, you need the skill that comes with practice. But this business cannot be called super-complicated. Having laid 5-10 elements of the future structure, you will already be laying them, as if you have been doing this all your life.

Keep in mind that no matter how accurate your calculations may seem to you, the material must be purchased with a small margin. This applies not only to glue, but also to the masonry elements themselves. If you have small leftovers, this is not critical. In any case, they may be needed another time, but if something is suddenly missing, it is much worse, especially if you need to complete the construction within a limited time frame.

So we figured out how much glue is needed for one cube of the foam block. We can draw an analogy with aerated concrete and gas silicate. After all, all of the listed building materials belong to the same detachment and they fit according to the same principle.