The main dimensions of the lego brick. Lego brick: characteristics, masonry, equipment and production Who built from Lego bricks

The production of lego bricks (as the new building material is called) is increasing every year. This type of building material for walls does not require firing, which means that its production can be started at home by purchasing necessary equipment and technology. According to experts in the construction market, Lego brick is steadily expanding its niche, attracting more and more new admirers.

Why Lego?

The name of the wall material comes from the popular children's constructor. Brick, or block, though bigger size, outwardly very similar to the details of the designer from Lego.

In the manufacture of this material, hyper-pressing of the finished mixture is used, consisting of screenings of limestone rocks, Portland cement and water. The main composition of Lego bricks is of 2 types: cement-clay and cement-clay-sand.

Products made using this technology have special formation grooves, which speed up the construction of building walls or fences.

In the construction market, Lego bricks are classified according to different parameters. By the size of technological openings:

• hollow model (holes occupy 25% or more of its area);
• full-bodied model (it has a hole area of ​​less than 25%).

By lock type:

• restriction in 2 directions - horizontally and transversely;
• limited only in the transverse direction.

In appearance:

• smooth face;
• textured.

Classification according to the type of connection of bricks in the masonry:

• T&G (tongue and groove);
• P&D (protrusion and recess);
• topological lock.

Most Lego products are produced with locks of the first two positions. In the manufacture of Lego bricks involved in high-rise housing construction, a sand-cement composition is used in a ratio of 1:10.

Production process and composition of the mixture

The following manufacturing technology is used in the production process:

• crushing and screening the components of the mixture;
• dosage and mixing of the components that make up the solution;
• molding;
• high pressure pressing.

Lego brick factories use the following compositions for its manufacture.

1. Cement + clay. The percentage is expressed as follows: 80-90% clay, 10% cement, 3% water.
2. Cement + clay + sand. The components are mixed in such quantities: 50-60% sand, 30-40% clay, 10% cement, 3% water.
3. Limestone sawing screening - 75-80%, Portland cement - about 15% and water.

A mixture based on limestone is considered the highest quality; products made from them are used to build load-bearing walls.

For Russian climatic conditions, mixtures of screenings of crushed stone with dyes and cement in a proportion of 8-20% are more suitable. The mixture is pressed under high pressure to obtain high quality blocks.

The composition of the mixture for Lego bricks also includes such materials:

• pigments;
• plasticizers.

Pigments are used to give products different color shades, which improves them. appearance. For the manufacture of Lego bricks, used in the construction of buildings with increased requirements for moisture permeability, plasticizers are added.

Advantages and disadvantages of the material

The advantages of the material include:

• brick production without firing;
• increase in productivity when laying walls;
• beautiful appearance;
• accuracy and ease of masonry;
• lighter weight of products, which reduces the load on the bricklayer;
• the ability to use through holes in the blocks for communications;
• high frost resistance, the material tolerates 30 freezing cycles well;
• good wear resistance, no cracks and chips, which reduces the percentage of waste;
• environmental friendliness;
• fire resistance;
• high moisture resistance;
• the use of special glue when laying walls, which is much cheaper than cement-sand mortar;
• variety of shades and textures;
• a perfectly flat surface of the material is the basis of the same smooth walls;
• cost savings due to the use of adhesive as a binder.

With such an impressive list of advantages, Lego bricks also have disadvantages. You can highlight the following:

• relatively low heat saving coefficient;
• the use of expensive matrices made of high-quality steel;
• high sorption moisture content of the material.

To get high-quality Lego bricks, the composition of the mixture should be formed according to the pressure of the press available in the production. For soft limestone rocks, the minimum pressure must be at least 170 kg/cm².

Production equipment

The main equipment for the production of Lego bricks is special machines. They are manual (for making bricks at home) and high-performance electric, the purchase of which allows you to open a medium-sized business.

Machine classification:

1. Do-it-yourself lego brick making machine. Productivity 1000 pcs. for a shift. They are manual and electrically operated.
2. Machine tools for individual production of the middle category. They produce 2000 Lego bricks per shift.
3. Mini-factories and machines for industrial production with a capacity of 750 pieces per hour.

High-quality machines for a small business must withstand up to 500,000 cycles, industrial mini-factories can withstand a working range of 600,000 - 1,000,000 cycles.

The average time for the manufacture of one product is 15-30 seconds. In one cycle, 6-8 units of goods can be produced, which speeds up the payback of equipment. Lego blocks for partitions are formed under a pressure of 2 tons. If they are produced under a pressure of 30 tons, then this material is suitable for laying load-bearing walls.

Material manufacturing technology

The main advantage of producing Lego wall material is that there is no need to fire bricks, which means that there is no need to build a bulky oven and carry out a dangerous firing process. Often on the net you can stumble upon the question of how to make a high-quality Lego block, or requests to describe in detail what is the technology for the production of Lego bricks.

For reference technological process production of wall material, in addition to machine tools, the following equipment is also used:

• crushers and screening sieves connected in one common unit;
• department for preparing the working mixture, consisting of bunkers for mixing all those ingredients that lego products are made of;
• conveyors and conveyor belts for various purposes;
• pallets and electric cars for packaging and transportation of finished products.

In the production process, shovels, containers for various purposes, brushes, propylene tapes and special clamps are used for packaging the finished material.

Each type of blocks is made using a separate matrix. The material for it is high-quality steel grade 40 HN. This is due to the fact that the matrix, along with its contents, is exposed to high pressure. It, like the mixture, goes through at least 500,000 work cycles. Poor-quality material from such loads quickly fails.

In England, a house was built from Lego bricks. It took 300,000 toy blocks. First, bricks of real sizes were made of them.

It turned out like hollow cinder blocks. Each of them took 272 Lego bricks. Volunteers helped. They were called by the author of the project - the architect James May.

The idea came to him in a conversation with friends. We sat in the bar and discussed what to build, if they had as much Lego as they wanted.

The conversation turned into two-storey house in one of the fields in Surrey. Even the load-bearing beams in the building were made of constructor, so that the frame could withstand human weight.

In the photo, lego bricks are colored

James May himself checked it. Upon completion of construction, he lived in the building for a day, without deviating from the usual daily routine. The Lego bed, as the architect noted, is harsh, but in general, the man was comfortable.

Building with toy bricks is an experiment. A few months after the construction of the house, it was dismantled. The reason is the lack of a building permit.

It would hardly have been given to a Lego house. However, there are real Lego bricks. They were invented before toy ones, in 1932. The author of the project was Ole Christiansens.

He led a team of joiners and carpenters. For almost a century now lego brick becomes material for real houses.

There are no problems with permission to build them, and you can live in buildings without fear that they will not withstand the weight of the guests.

However, so far, the material has not gained much popularity. If it's a lack of information, we'll provide it.

What is a lego brick?

Externally, a Lego brick is a standard, rectangular block. It differs from the usual two spikes on the upper side and two hollow grooves on the bottom.

When laying, the protrusions enter the cavities, being attached to the glue. By the way, there are similar grooves in some aerated concrete blocks. As a result, the assembly of the walls resembles the folding of a Lego constructor.

From Danish, its name is translated as "game", "pleasure". The goal of making grooved bricks is to make building fun. Let's start with an external inspection of the details:

As you can see, the number of pins and inputs for them can be different. In modern bricks, they like to copy the design of parts from Lego.

But, the model created by Ole Christiansens contained only 2 protrusions and the same number of grooves. Over a century of history, the model range has expanded not only in terms of the number of pins and inputs, but also the shape of the bricks. Consider the new market:

These blocks are experimental only in Russia. lego brick in Canada, for example, vertical locks. These are shown in the first photo.

In domestic open spaces, they prefer vertical mounts, coupled with horizontal ones. The system is named Haener. Masonry with only vertical grooves is called Sparlock.

The shape and location of the locks is not the only parameter that you should pay attention to when choosing lego brick. Characteristics, which determine both the features of the masonry and the quality of the blocks, we will consider in a separate chapter.

Characteristics of lego bricks

On the photo lego brick has larger or smaller holes. Depending on the area they occupy, the blocks are divided into solid and hollow.

The former are less than 25% filled. In the latter, respectively, the void accounts for more than a quarter of the area. If the hole occupies from 50%, an overuse of the binder is coming.

Some use cement. Ideally, you need glue. It sits on him lego brick. Technology implies the consumption of 15 kilograms of tile mix per cube of building blocks.

Otherwise, the essence of the characteristics given to bricks by cavities coincides with the parameters of ordinary hollow and solid blocks. Let's listen to one of their sales managers:

The climate in Belarus, from where the video "arrived" on You Tube, is milder than in the Siberian regions of Russia. The maximum frost resistance of lego blocks is -35 degrees.

Accordingly, buildings in Yakutia, Magadan region, Tyva, Komi, in the north of the Krasnoyarsk Territory are not justified.

However, it is worth considering the possibility additional insulation buildings and masonry in one and a half bricks. Filling nodes.

Between the rows you place, for example, polyurethane foam. So the Siberian version of Lego is ready. Below amateur, but, visual photo:

Not only reinforcement is placed in the holes of Lego bricks. You can also hide communications, for example, pipes, in the wall. Why don't Lego buildings grow like mushrooms?

In Russia, the problem comes down to a small number of manufacturers. Lego brick sizes do not tolerate rejection. Otherwise, the grooves do not fit.

Accordingly, blocks are recorded in marriage even with a millimeter deviation from the norm. Enterprises do not undertake such troublesome production and do not have the appropriate equipment. In the same place where it is, such buildings and entire villages made of Lego bricks appear:

The pictures show that outwardly buildings made of Lego blocks do not differ from ordinary brick houses. Both architecturally complex and simple solutions are implemented.

They are acceptable for seismically active regions. Masonry is one and a half times more stable than ceramic blocks.

The strength of the material allows you to build load-bearing walls from it. At the same time, working with Lego and transporting it is easier than ordinary bricks.

The weight of the novelty is about 3 kilos. This is the mass of one block. At the same time, in terms of density, it is not inferior to the standard one. Besides, lego brick house characterized by minimal moisture absorption.

It does not exceed 6%. This prolongs the life of the blocks, because building materials are destroyed by gaining moisture. Lego masonry can withstand 150 cycles. But, these are words.

The novelty of the material so far does not allow checking the longevity of blocks with grooves. The same thing that can be checked, it is better to look visually. We offer a video test from one of the manufacturers in Yekaterinburg:

Lego brick making does not involve roasting. The strength of the blocks is due to dense compaction. Technologists call it hyperpressing.

It is based on cold welding. Particles are connected by the force of pressure, not heat. It turns out that the main equipment for the production of blocks - lego brick press. We will tell about it further.

Equipment for the production of lego bricks

Machine for the production of lego bricks can be manual and industrial. The latter is powered by electricity. This gives maximum power and, accordingly, performance.

Manual machines do not require energy or are low-power. These are purchased for their own needs, individual construction.

Not only houses are built from Lego blocks, but also gazebos, fences, and fireplace masonry. Let's consider some of them.

Pictured is a Lego brick fireplace

Pictured is a Lego brick fence

Pictured is a gazebo made of Lego bricks

lego brick machine, in fact, there is a press. Low productivity implies about 1,000 blocks per shift. It is considered an 8-hour working day.

The average output is 2,000 bricks. Industrial presses create 700-900 blocks per hour. Such machines can withstand up to 1,000,000 operating cycles.

The minimum is 600,000. Lego brick production on the manual presses rated for a maximum of 500 cycles. One block comes out in 15-30 seconds.

This is an average. In budget presses, there is only one form for bricks. Let's look at an example of such a setup:

There is equipment, lego brick which comes out 6-8 pieces at a time. These are industrial machines. Their pressure is 30 tons.

There are also cars with 40 and even 60 tons. It is this pressure that provides a density of 1,550-2,000 kilograms per cubic meter.

The catch of most manual machines is low pressure. Usually, it is several tons. They are not enough for the product to reach the desired density.

You can no longer build load-bearing walls from such blocks. Just enough for gazebos, wells and fences with fireplaces.

Therefore, acquiring artisanal Lego for serious construction is a risk. To understand the difference between simple and industrial machines, just look at a couple of professional machines:

In the photo, equipment for making Lego bricks

Manual machine for lego bricks can give a relatively high-quality product when using a high-quality sand.

Likewise, on industrial equipment blocks can be obtained that leave much to be desired if the raw material is weak. What this means will be explained in the next chapter.

Composition of lego bricks

Lego brick mix depends on the region of production. In Moldova, for example, screenings of carbonate rocks are used.

We are talking about stones containing calcium carbonate, that is, limestone, shell rock, marbles. In clayey areas, kaolin is used.

With an abundance of sand, add it. The particles are fastened not only by pressing, but also by cement. Always add a little water.

The quality of the blocks depends precisely on the percentage of elements, the fineness of their grinding. So, lego brick composition clay-sand formation implies 8% cement, 2% water.

55% is clay and 35% is sand. However, most manufacturers use conventional crushed stone screenings.

It is difficult to verify the ratio of components in it. The emphasis is on the nuances of working with the mixture. Let's hear from the professionals:

Implementation machine drawings for lego bricks the highest class will not give proper results if the amount of sand in the mixture is more than 35%.

The sand is not crushed. Meanwhile, for high-quality Lego blocks, an ash fraction is needed. Perfectly smooth bricks are obtained from such raw materials.

They do not even need to be leveled with plaster. This saves money in terms of interior decoration premises. You can choose the color of the walls. The color depends on the composition or the addition of a special pigment.

Lego brick color

If do lego brick diy or in the workshop from the screening of carbonate rocks, white, possibly slightly grayish or beige blocks will be obtained.

Crushed gravel is of different composition. Granite chips, for example, are reddish. Clay is also red, orange, or brown.

However, white kaolin is considered the highest quality. When pressed, it gives a minimum number of pores, and therefore, the most "indifferent" to moisture and dense.

lego brick matrix painted in bright colors is used, as a rule, for facing facades, fireplaces and other decorative components. Blocks without adding dyes go to the main construction.

Lego brick - reviews

In 2016, about 10 factory models were produced on the Russian market lego. Brick buy offer Yekaterinburg, Saratov, Muscovites.

Building materials are also produced in Tula and Rostov-on-Don. There are few reviews about blocks and the construction of them. The shortage is associated with the novelty of the material on the Russian market.

Lego brick in Moscow discussed on the House forum. For example, a certain Dmitry spoke there: “Since the adhesive layer goes both in vertical and horizontal seams, the problem of blowing was solved.

Assembling directly adult constructor, entertaining. True, I have a feeling that in our country they do not know what the geometry of a brick is. I culled a lot in size.

Dmitry Moskvitin also spoke about the size of Lego. man gives useful advice: - “We need to buy the largest possible bricks.

They are easier to shape to size. The smaller the product, the more marriage. At least we have.

In Canada, they say, brick to brick fits perfectly even with small sizes, but we are not in Canada).”

The opinion of Stanislav Grivin from Tula is also interesting. The man apparently makes Lego blocks. Stanislav writes: “I steam the brick after molding.

Offhand, the quality is improving by 10 percent. 5 houses have already been rebuilt. The clients are happy. I cannot understand when the rule “the construction market is an ungrateful market” will work.

Lego brick price

The view on the cost of products varies between consumers and manufacturers. The latter need, as they say, to beat off the machines, replace them as they wear out. Professional presses cost from 2,000,000 rubles. A manual machine can be found for 30,000.

Consumers are interested price for one. lego brick they sell, as a rule, from 10 to 25 rubles per block.

The cost depends on the material, the degree of hollowness, dimensions. Standard brick parameters: 250 by 125 by 65 millimeters.

By the way, it was these blocks that were made from toy James May. And here is the building that was demolished, but remained in the memory of people and in the pictures they took. The architect did not fail to take a picture next to his creation.

Lego brick is an innovative building material with a specific shape. It is she who is its main advantage and allows for quick laying. Due to its properties, this building material is rapidly gaining popularity.

Lego bricks are an improved version of regular bricks. It is used for the rapid construction of various buildings.

Lego brick is an advanced building stone, with which you can quickly and efficiently build a variety of objects. Due to the presence of voids and recesses, it is easy and simple to build from it.

The masonry of the wall occurs according to the type of assembly of the designer, so any owner can cope with this task. This will significantly save on the services of professional builders. You can master the masonry process by building a Lego fence yourself.

• length 25 cm;
• width 12.5 cm;
• height 4.5-8 cm;
• weight depends on the type of mixture used and ranges from 3-4 kg;
• strength 100-200 kg/cm²;
• frost resistance of at least 200 freeze-thaw cycles;
• density 1550 kg/m³;
• strength grade M100-M200.

These building products are suitable for the construction of load-bearing walls and partitions; they are superior to ceramic counterparts in terms of masonry strength. The house made of Lego bricks is distinguished by high seismic resistance.

The only conditional drawback of this material is that it has not yet passed the test of time. However, its composition and method of manufacture allow us to assert that it will withstand it with dignity.

Organization of the production of Lego bricks

In order to start the production of Lego bricks, you will need special equipment. The market offers several types of small-sized machinesallowing you to start your own business.

This type of activity will not require a solid initial investment in the rental of premises and the purchase of equipment. The production of ceramic bricks can be organized in the garage or in the country.

Manufacturers offer the following models of brick making machines:

1. UGP 410 "Lego 4". This equipment allows you to make Lego bricks by pressing. The machine is small. Its dimensions (LxWxH): 100x60x160 cm. Therefore, large rooms are not required for work. Crafting time for 1 brick is 20 seconds. In one production cycle, one product can be made. 1-2 people will handle the maintenance of the machine.


2. UGP 525 "Lego 5 Auto". Machines of the Auto line are equipped with a set of control equipment: a counter of the number of cycles, a press operation sensor, a mixture control sensor in the hopper, temperature and pressure sensors. This brick making machine works on the principle of vibrocompression. Equipment dimensions (LxWxH): 110x90x190 cm. Despite the simplicity of this machine, it is able to produce products, the quality and shape of which meet all requirements.
3. Lego 120. This one manual machine the most inexpensive, as it does not belong to the category of automated equipment. The release of building stones on it is carried out mechanically using a lever drive. This machine for Lego bricks weighs 90 kg, dimensions - 160x50x110 cm. Productivity - 120 pcs. in hour. Service requires 1-3 people.

In addition to the machine, auxiliary equipment: vibrating screen and belt conveyor. They can significantly reduce the need manual labor, to facilitate and speed up the process of manufacturing and warehousing of products.

However, this equipment for the production of bricks is desirable, but not necessary. If we consider the production of bricks as a business, then the automation process is extremely important. But at first, you can get by with the purchase of one machine.

If you decide to start a highly profitable business, it is recommended to purchase such a complex as a brick production line. This is a real mini-factory, equipped with all the necessary equipment for automation and control. Thus, ZiegelMasch's "Standard" production line allows to produce up to 3.5 thousand products per shift.

Such equipment for the production of bricks is quite expensive, but it also pays off quickly: the demand for these building materials is growing every day.

The package includes a press with a capacity of 60 tons, which allows to produce high quality products. Therefore, there will be no problems with product certification.

The composition of mixtures for lego bricks

The technical characteristics of any building stone are 80-90% dependent on the type and quality of the mixture from which it is made.

No matter how good the machine for the production of Lego bricks is, it will not be able to fully provide the product with the necessary strength and durability. These indicators directly depend on the complex of materials that will be placed in the bunker. The press will only form a product of the required dimensions from them.

The composition of the mix for making Lego bricks includes:

1. Portland cement brand not lower than M400.
2. Sand.
3. Water.
4. Aggregate.

The choice of the latter is very wide. You can use the material that is easiest to get. You can set up the following:

• screening of marble;
• limestone;
• lime screening or grit;
• shell rock;
• crushed stone;
• gravel.

Consider mixtures for Lego bricks.

Option number 1:

• cement M500 9%;
• screening of limestone fine fraction (0-5 mm) 85%;
• limestone grits 30%;
• pigments 10%;
• ash 30%.

Option #2:

• cement M400 315 kg;
• crushed stone of small or medium fraction 690 kg;
• sand 825 kg;
• water 92 l.

Option number 3:

• clay 80-90% of the total composition;
• cement 10-20%;
• water.

Option number 4:

• sand 35%;
• clay 55%;
• cement 10%;
• water.

Learning how to prepare a quality mixture is not easy. Most manufacturers go through trial and error, as much depends on the quality of the cement and the type of filler. More experienced entrepreneurs share their best practices that help beginners quickly master production. Recommendations are as follows:

• machines with a press pressure of less than 30 tons cannot provide a high-quality appearance and shape of bricks, which are based on a large number of chamotte clay;
• products of the highest possible strength are obtained from mixtures that include crushed stone;
• to provide the product with high frost resistance and moisture resistance, the mixture should contain as little clay as possible.

What else is required for the production of Lego bricks?

An important piece of equipment is the matrix. It is a metal snap, which is the heart of the press. It is she who provides the product with the desired shape and directly affects the characteristics of the product. The lego matrix can be purchased with the machine or purchased separately. Without a matrix, Lego brick production technology cannot be followed.

Matrices are manufactured in accordance with the requirements of standards. For single bricks, the dimensions of the equipment are 250x120x65 mm, for one and a half - 250x120x88 mm, for double - 250x120x140 mm. In any of these matrices, holes and protrusions are provided, which are a feature of Lego bricks.

//www.youtube.com/watch?v=zuELSxgC8wg

Despite the apparent complexity of manufacturing these products, setting them up is quite simple. Maintenance of machines does not require a large team of workers. The cost of production is very low, which allows you to get high profits.

Lego brick refers to modular building materials with simple manufacturing technology and affordable cost. Their appearance really resembles the details famous designer, but in terms of strength and frost resistance they are not inferior to conventional baked bricks. Production has not yet reached an industrial scale, mainly private enterprises are engaged in production (fortunately, the cost of equipment allows this). Reviews about the building material are ambiguous, many note the simplicity and accuracy of masonry, but durability and thermal insulation properties not yet tested by time.

Hyper-pressed modular bricks come in a variety of forms, but most often the term "lego" is used in a rectangular blank measuring 250 × 125 × 65 mm with locking joints and two through holes with a diameter of 75 mm. The geometry of the products is carefully verified, with the first row correctly laid, even a beginner can handle the construction of structures from Lego bricks. This design allows you to lighten the weight of the blanks (due to this, the load on the foundation is reduced) and lay wires and other communications inside the walls.

Recommended applications include façade cladding, fencing, bollards, partitions and load-bearing walls. The material is optimal when it is necessary to quickly erect light buildings. The main performance features include:

• Normalized density - from 1550 kg / m3.
• Frost resistance - from 35 cycles.
• Water absorption -5-6%.
• The average weight of 1 piece is 3 kg.
• The minimum strength grade is M150.

It is possible to manufacture bricks with a density of up to 1900 kg / m3 and frost resistance of at least 50, but in this case it will cost more (due to the rapid failure of equipment during fine grinding of abrasive raw materials).

Manufacturing features

Equipment for the production of Lego bricks is a manual or electric multifunctional machine that is not demanding in terms of area and placement conditions. Blanks are formed in special matrices, on initial stage quite simple and common. The process takes place according to the scheme: loading of raw materials → grinding and mixing → brick formation in matrices → steaming. On average, on electrical equipment, it takes no more than 12 seconds to manufacture 1 piece, and another 3 to remove it from the machine.

The quality depends on several factors: the composition of the mixture, the size of the fractions of the components and the magnitude of the pressure being processed. It is noted that for the release of Lego bricks with sufficient strength, a pressure of at least 150 kg / cm2 must be provided (you should pay attention to this before buying equipment). It is believed that the material is immediately suitable for work, but experienced builders are advised to wait at least 3 weeks before use.

The composition of the mixture for production

For manufacturing, crushed and sifted fractions of volcanic and limestone rocks, sand and clay with cement as a binder are used. The smaller their size, the more reliable the Lego brick is. In production, three types of compositions are used:

• From cement up to 10% and clay up to 90%, the amount of added water does not exceed 3%.
• The same, but with the addition of sand (up to 50-60%). To get quality building material this mixture is subjected to especially high pressure treatment.
• Based on meluse (limestone cuts, up to 80%), high-quality Portland cement (up to 15%) and water.

The latter type of mixture for making bricks is considered the highest quality and suitable for use in the Russian climate. To improve water-repellent properties, plasticizers are introduced, their proportion slightly affects the proportions of the added binder. To make the product attractive, additional coloring ingredients are used: phthalocyanine paints or iron oxides.

Lego-style brick is valued for the ability to build walls without the usual masonry cement-containing mixtures. The rows are laid with the help of special glue (approximate consumption per 1 cube is 25 kg), the shape of the products allows you to create even and smooth structures without protruding mortar and ugly seams. But according to builders, this approach is not enough, they recommend reinforcing the masonry with iron reinforcement and pouring concrete into the central holes. The thicker the guides, the better. load-bearing walls use rods with a diameter of at least 12 mm.

Overview of reviews

“I used Lego bricks for the construction of a summer kitchen, I led the masonry in one row with reinforcing reinforcement. The advantages of the material include the speed and ease of work, I did not spend time mixing the inter-gap mortar, only concrete for pouring. The walls of the kitchen turned out beautiful and even. But for buildings with higher requirements for thermal insulation, I would not buy it.

Ivan Novikov, Moscow.

“I bought Lego bricks during construction country house, was pleased with them. The walls were erected in two rows with expanded clay backfilling of the space between the bricks. The house turned out to be warm and durable, I started finishing 3 weeks after reinforcing the internal holes. But with all the advantages, I personally would not call the technology economical, rather, convenient. With large volumes of construction, it is worth purchasing your own equipment for production.

Vladislav, Voronezh.

“I advise you to use a brush, not a spatula, when applying glue when laying Lego-cyprich, this will reduce consumption. You should not be afraid of reviews that the building will be ventilated or fragile, the accuracy of the forms and interlocks of these products is high, they fit snugly together. The only minus I noticed is a slight fading of color after two years, it is not in vain that it is advised to hide it with plaster.

Ilya, Moscow.

“For builders who want to build a house or a dacha from Lego bricks, I advise you to pay attention to the accuracy of manufacturing products and invite an experienced bricklayer, at least for the first row. Cheap bricks with crumbled edges will not fit exactly into the groove, and the edges on the front row will look ugly.

Nikolay, Saratov.

“I bought Lego bricks for the construction of an unheated garage and a fence adjacent to it. The fence turned out to be very beautiful, after a year of operation I do not observe cracks and other defects. I think that the material is optimal for the quick construction of a light building, at least I was not disappointed.

Valery, St. Petersburg.

Summary: the pros and cons of lego bricks

Analysis of reviews and performance characteristics allows us to conclude that the advantages of the material far outweigh its disadvantages. The advantages of the technology include:

• Low cost of production (including due to the lack of firing), the entire manufacturing process takes place on one equipment.
• The ability to quickly erect buildings, high accuracy of the geometry of products.
• Good performance indicators of Lego-brick: strength, resistance to wear, cracking, seismological effects, temperature extremes.
• Possibility of laying engineering communications inside the walls.
• Ease of processing: if necessary, the brick is cut by a grinder without coloring.
• Attractive appearance of Lego bricks and structures assembled from it. At right technology production, it has a perfectly flat surface, without chips along the edges, with a stable color.
• savings on exterior finish facades (there is no need to apply leveling solutions, a thin layer of finishing plaster is sufficient, which is convenient for builders).
• Possibility of manufacturing custom-made Lego bricks with improved strength and moisture-resistant characteristics. A wide selection of colors, shapes (including additional elements).

The disadvantages include increased thermal conductivity; during the construction of residential buildings, wall insulation becomes necessary condition. But the main drawback is the lack of building standards and any control over the quality of production (as with any other untested technology). Much depends on the integrity of manufacturers, builders advise checking the declared characteristics before buying a brick, including for compliance with climatic operating conditions.

The average price per piece is 16 rubles. To ensure safety, the products are transported on wooden pallets, each containing a minimum of 352 pieces. Small enterprises are mainly engaged in the manufacture of such bricks, it is advisable to order it in advance and discuss the volume and terms of delivery. The price of a Lego brick is determined by the cost of the raw materials used, in particular, by the coloring pigments introduced into the mixture. Color options usually cost 2-4 rubles more, but the final cost is set only by the manufacturer.

LEGO bricks are available in several types, their dimensions depending on the forming zone of the vibratory press and the type of matrix used in production.

The main dimensions of the LEGO brick

The main dimensions of the LEGO brick

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The usual dimensions of LEGO bricks are 250 x 125 x 65mm. The standard product has 2 holes with a diameter of 65mm, they are located at a distance of 60mm from each other. The main advantage of the product is the simplicity of masonry, performed according to the principle of connecting holes with spikes protruding from the front of the brick. The height of these spikes must be exactly 5mm, otherwise it will not be possible to implement a masonry concept that provides the operational advantages of the product.

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Precise laying, possible with correct location holes, relative to the side edges. The distance from the edge to the center of the hole on the outside should be 30mm, which will allow the bricks to be laid in even rows. The corners of the brick are 15mm in size, if the indicator is larger, then the product loses its aesthetic appeal. The indicated dimensions of LEGO bricks are relevant only for a standard product, however, there are many other types on the market, mainly made with imported matrices.

Thickened and elongated bricks

The most popular dies (press LY1-10):

• SHAFT MASSIVE;
• MODULAR MASSIVE;
• CONVENTIONAL MASSIWE.

Using these matrices, bricks are made different shapes, but they all have the same size - 250x125x100mm. Such products are slightly higher than standard samples produced on domestic equipment, therefore, fewer bricks are needed to complete the masonry, and this is a direct saving. There are samples that have a size of 300 × 150 × 100, however, such products do not have holes, in the center they have a recess along the entire length, a groove protrudes from one side, and a spike from the other.

Possible dimensional deviations during production

The dimensions of LEGO bricks are of decisive importance for manufacturers, expanding the range, they increase the competitiveness of products, as they provide consumers with more options for building. The main task of the manufacturer is the correct adjustment of the machine, on which the uniformity of the brick geometry depends. The thickness of the product on one side can be less by 1.5 - 2 mm. You can fix this by using the adjusting bolts equipped with support nuts. By properly adjusting the machine, you can produce bricks of the desired size.

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