Technical characteristics of Lego bricks. Lego bricks: characteristics, masonry, equipment and production. Technical characteristics of Lego bricks

A house was built from Lego bricks in England. It took 300,000 toy blocks. First, they were used to make bricks of real sizes.

The result was something like hollow cinder blocks. Each of them took 272 Lego bricks. Volunteers helped. They were called upon by the author of the project, architect James May.

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

The conversation resulted in two-story house on one of the fields in Surrey. Even the load-bearing beams in the building were made from construction material, so that the frame could support human weight.

In the photo there is a colored Lego brick

James May himself checked this. Upon completion of construction, he lived in the building for a day, without deviating from his usual daily routine. The Lego bed, as the architect noted, was a bit hard, but overall, the man was comfortable.

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

It would hardly be 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 the buildings without fear that they will not withstand the weight of the guests.

However, so far, the material has not gained much popularity. If the issue is a lack of information, we will provide it.

What is a Lego brick?

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

When laying, the protrusions fit into the cavities and are secured with glue. By the way, similar grooves are found in some aerated concrete blocks. As a result, assembling the walls resembles folding a Lego constructor.

Its name is translated from Danish as “game”, “pleasure”. The purpose of making grooved bricks is to make construction fun. Let's start with an external inspection of the parts:

As you can see, the number of pins and inputs for them may be different. IN modern bricks love to copy the design of Lego parts.

But the model created by Ole Christiansens contained only 2 protrusions and the same number of grooves. Over a century-long history model range expanded not only in terms of the number of pins and inputs, but also in the shape of the bricks. Let's take a look at what's new on the market:

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

In domestic spaces, vertical mounts are preferred along with horizontal ones. The system is called 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 masonry features and the quality of the blocks, will be considered in a separate chapter.

Characteristics of Lego bricks

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

The first ones are less than 25% filled. In the latter, accordingly, the void accounts for more than a quarter of the area. If the hole takes up 50% or more, there will be excess consumption of the binder.

Some use cement. Ideally, you need glue. He sits on it Lego brick. Technology implies the consumption of 15 kilograms of tile mixture per cube of building blocks.

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

The climate in Belarus, where the video came from 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, the Magadan region, Tyva, Komi, and the north of the Krasnoyarsk Territory are not justified.

Although, it is worth considering the possibility of additional insulation of buildings and masonry of one and a half bricks. You fill the nodes.

Between the rows you place, for example, polyurethane foam. So the Siberian version of Lego is ready. Below is amateurish, 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 producers. Lego brick dimensions do not tolerate deviations. Otherwise, the grooves will not fit together.

Accordingly, blocks even with a millimeter deviation from the norm are rejected. Enterprises do not undertake such troublesome production and do not have the appropriate equipment. Where it exists, these buildings and entire villages made of Lego bricks appear:

The photographs show that the appearance of buildings made from Lego blocks is no different from houses made of ordinary brick. Both architecturally complex and simple solutions are implemented.

They are suitable for seismically active regions. The masonry is one and a half times more stable than that made from ceramic blocks.

The strength of the material allows the construction of load-bearing walls from it. At the same time, working with Legos and transporting them is easier than regular bricks.

The weight of the new item 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 service life of the blocks, because building materials are destroyed when they absorb moisture. Lego masonry can withstand 150 cycles. But these are words.

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

Making Lego bricks does not involve firing. The strength of the blocks is due to dense compaction. Technologists call it hyperpressing.

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

Equipment for the production of Lego bricks

Lego brick making machine can be manual and industrial. The latter runs on 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 look at some of them.

In the photo there is a fireplace made of Lego bricks

In the photo there is a fence made of Lego bricks

In the photo there is a gazebo made of Lego bricks

Lego brick machine, in fact, is the press. Low productivity means about 1,000 blocks per shift. This is considered an 8-hour working day.

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.

Minimum – 600,000. Lego brick production on hand presses designed for a maximum of 500 cycles. One block comes out in 15-30 seconds.

This average. In budget presses there is only one mold for bricks. Let's look at an example of such an installation:

Eat equipment, lego brick which produces 6-8 pieces at a time. These are already industrial machines. Their pressure is 30 tons.

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

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

Load-bearing walls cannot be built from such blocks. Just enough for gazebos, wells and fences with fireplaces.

Therefore, purchasing homemade Lego for serious construction is a risk. To understand the difference in the operation of simple and industrial machines, just look at a couple of professional machines:

The photo shows equipment for making Lego bricks

Manual machine for lego bricks can produce a relatively high-quality product when using a good molding mixture.

Likewise, on industrial equipment The resulting blocks may leave much to be desired if the raw materials are weak. What this means will be explained in the next chapter.

Lego brick composition

Mix for lego bricks depends on the region of production. In Moldova, for example, they use screenings of carbonate rocks.

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

If there is an abundance of sand, add it. The particles are held together not only by pressing, but also by cement. Always add a little water.

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

55% is clay and 35% is sand. However, most manufacturers use ordinary crushed stone screening.

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

Bringing it to life drawings of a machine 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 you need an ash fraction. From such raw materials, perfectly smooth bricks are obtained.

They don't even need to be leveled with plaster. This saves money in terms of interior decoration premises. The color of the walls can be selected. The color depends on the composition or the addition of a special pigment.

Lego brick color

If you do DIY lego brick or in a workshop, screenings of carbonate rocks will produce white, perhaps slightly grayish or beige blocks.

Crushed stone comes in different compositions. Granite chips, for example, are reddish. The clay is also red, orangeish, or brown.

However, white kaolin is considered the highest quality. When pressed it gives minimum quantity pores, and therefore the most “indifferent” to moisture and dense.

Lego brick matrix painted in bright colors is used, as a rule, for cladding facades, fireplaces and other decorative components. Blocks without added dyes are used for basic construction.

Lego brick - reviews

In 2016, about 10 factory models were produced on the Russian market lego. Buy bricks offered by residents of Ekaterinburg, Saratov, and Muscovites.

They also produce building materials in Tula and Rostov-on-Don. There are few reviews about blocks and construction from them. The shortage is due to the newness of the material on the Russian market.

Lego brick in Moscow discussed on the House forum. There, for example, a certain Dmitry spoke out: “Since the adhesive layer is in both vertical and horizontal seams, the problem of airflow has been solved.

Assembling it looks like an adult designer, entertaining. True, I have a feeling that in our country they don’t know what brick geometry is. I rejected a lot based on size.”

Dmitry Moskvitin also spoke about the size of Lego. The man gives practical advice: “You need to buy the largest possible bricks.

They are easier to mold to size. The smaller the product, the more defective it is. At least that's how it is with us.

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

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

To put it simply, the quality is improving by 10 percent. 5 houses have already been rebuilt. Clients are happy. I can’t understand when the rule “the construction market is an ungrateful market” will come into effect.

Lego brick price

Views on the cost of products differ between consumers and producers. The latter need, as they say, to recapture the machines and 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 per piece. Lego brick They usually sell from 10 to 25 rubles per block.

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

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

Lego bricks have not yet found widespread use in Russia; they have not been sufficiently studied and are even little known to many professionals, although the invention of the Danish builder Ole Kirk is already more than 100 years old. The main obstacle is the lack of knowledge of the properties in the long term, which discourages branded manufacturers. And most garages are not concerned with obtaining quality certificates.

The appearance of the material resembles the details of the same name children's construction set. The product has two spherical guide holes with protrusions on one side and recesses on the other, acting as a kind of lock to ensure clear laying geometry. Laying Lego bricks using the tongue-and-groove method is easy to execute at high speed. The material can be successfully used in all areas of application of traditional bricks. Standard sizes 250×125×65 mm or 300×150×100 mm, with a weight of 3 to 4 kg.

Manufacturing technology

Making Lego bricks includes the following steps:

1. Procurement of raw materials, their sorting and preparation of the required mixture.
2. Forming the mixture.
3. Pressing of products.
4. Storage of finished bricks.
5. Wait a certain time before use.

For production, special equipment is required, consisting of the following units:

• loading hopper;
• mixture dispenser;
• a molding chamber with a special matrix located in it;
• electric motor;
• hydraulic press with oil pump.

All equipment is mounted on a metal frame and takes up little space.

When manufacturing products in large volumes, it is recommended to have additional devices for sorting, sifting and mixing raw materials, as well as a conveyor for feeding the mixture into the receiving hopper.

The process consists of the following operations:

• sifting and grinding components;
• thorough mixing of the ingredients;
• the dispensing device sends the required volume to the molding chamber, where the product is formed using a matrix;
• pressing the mixture under pressure created by the oil pump;
• the finished brick is pulled out using a push-out device;
• storing bricks in a warehouse and holding them for ≥ 3 days before sending them to consumers.

Brickwork is done after the products are manufactured, 21 days later.

Preparing the mixture

Let's look at what Lego bricks are made of?

The quality of the product depends on the dosage and type of components in the mixture.

Composition of the mixture for Lego bricks:

• binder (cement and clay);
• fillers (sand or various non-solid screenings);
• plasticizers;
• coloring pigments;
• water.

Clay-cement compositions contain up to 10% cement, 80 ... 90% clay.

More high quality mixtures of up to 15% Portland cement and screenings 85 ... 90.

Lego brick mixture composition may contain fillers from various available local screenings from rock development:

• shell rock;
• limestone;
• marble;
• dolomite;
• travertine;
• other non-hard rocks.

When laying bricks, frost-resistant types of glue are used to ceramic tiles applied with a special gun, roller or brush (can be used plastic bottle, through which the glue is squeezed out).

Various cables and wires can be passed through the holes, reinforcement and concreting can be carried out.

The material has excellent technical and physical characteristics, so its strength is 1.5 times higher than its ceramic counterpart.

Cons of Lego bricks:

• lack of GOST and unified regulatory documents on production;
• has not undergone sufficient testing of the durability of the technology;
• the matrix should be made only from high-quality steels (for example, 40X).

There is no doubt that in the near future Lego bricks will be worthy competition traditional types bricks

When discussing a building material such as Lego brick, it is extremely difficult to isolate the grain of truth from multiple conversations about this product and find out its truly truthful characteristics. The very name of this type of brick, borrowed from a popular company, carries a simplifying task, which is often not beneficial. This especially affects professionals in this activity and more experienced amateurs.

So, the term brick-Lego, in literal translation from English it sounds more detailed and complete - “interlocking brick”, which means “mutually interlocking” bricks, interlocking brick, that is, a brick with a lock.

Lego bricks - characteristics and features.

The main characteristics of this brick product include:

• strength - M 150,
• density - 1550 kg/m3,
• frost resistance - 35 cycles (for severe climatic conditions performance can be improved).

Advantages of Lego bricks:

• The benefits are visible even to non-professionals. Due to the presence of grooves, laying them is faster and easier. The existing holes can be used for wiring. The weight of Lego bricks is less than other types.
• Making Lego bricks does not require firing, which greatly reduces the cost. Instead of firing, strong pressing is used, which imparts strength. Has not only different color and shades of colors, but also a variety of textures.
• Thanks to hyper-pressing, this brick can be classified as a type of artificial stone. It can be successfully used for cladding a building. And the high strength allows you to lay out not only partitions, but also load-bearing walls.
• Laying Lego bricks does not require special skills; it is enough to lay out the first layer correctly, and then the process will proceed quite quickly. After all, due to the existing grooves and tenons, they fit together perfectly. The layers are joined not with a traditional solution, but with the use of a special glue, which can be applied with a brush or roller. Using glue will not only reduce costs, but also does not require much physical activity as when preparing cement mortar. And the wall will look aesthetically pleasing.

There are 500 bricks in one cube. To assemble 1 cube of Lego bricks you need 15 kg. tile adhesive for exterior use.

Lego brick production and equipment.

Before starting the cultivation of Lego bricks, it is necessary to adequately assess all the disadvantages and advantages of this method, as well as study all the expenses and costs. It is necessary to realize the full scale of future production, since this industry requires large areas for production. But this is the case when the conversation is about business.

If you make it yourself, you will need to calculate the profitability and decide what will be easier - make it yourself or order it from production.

According to the classical scheme, the ratio of elements in the brick composition is as follows:

• Sand – 10%
• Dropout – 70%
• Cement (M500) – 20%

From 1 ton of this mixture you will get approximately 290 Lego bricks. Costs will depend on the price of materials in your area. locality. Equipment for making Lego bricks is available in large quantities in the construction market of the CIS.

Equipment for making Lego bricks at home.

To start working, it is enough to purchase a machine (hyperpress), an industrial mixer and other things - molds (matrices), pallets, shovels, etc.

The cost of equipment for brick production depends on productivity:

• machines with low productivity up to 1000 pieces per shift (manual or low power) - 90-300 thousand rubles;
• middle class - about 2000 bricks per shift, price from 350 thousand rubles;
• industrial equipment or a mini plant make it possible to produce more than 750 pieces per hour, but the cost is high - from 2 million rubles.

The brick machine consists of the following parts:

• bunker for bulk materials;
• dispenser;
• matrix for forming Lego bricks;
• pump;
• press;
• bed;
• electric motor (not available in manual units).

Do-it-yourself Lego brick machine.

You can make a machine for creating Lego bricks yourself. Before starting work, it is necessary to prepare certain materials that will become the basis for the machine.

These include:

• channel;
• sheet steel;
• metal corner;
• pipe for creating a handle and piston;
• bolts and nuts.

You will also need a tool. At the very least, a grinder and welding machine. The cylinder posts must be made from channel sections, the length of which is approximately 1 m. The width of the cylinder will correspond to the length of the brick being made. Between the racks in the upper part it is necessary to weld two metal rectangles, which will form a cross-section.

A channel is attached to the resulting structure, the length of which is approximately 0.7 m. It must be positioned with the ribs up. It should be welded on one side, and under the protruding part it should be fastened with supports. After this, a hole is cut above the cylinder, corresponding to its perimeter. The bunker will be welded from sheet metal. It is important that its width and length fully correspond to the dimensions of the final form. The hopper is mounted on 4 legs, the basis of which will be strips of metal welded to the protruding part of the channel. The piston is made of metal sheet. Two pipes must pass through this rectangle.

From a piece of pipe and metal strips we make a handle with which the lid will open and close. The handle is secured with long bolts. The corner will be needed to make a base for the machine. Homemade machine will allow you to make two types of bricks yourself. It can be either Lego with holes or solid. There is no need to make a matrix. It is much wiser to purchase a ready-made one.

Necessary raw materials for making Lego bricks.

To produce this material, environmentally friendly substances are used. All components are widely used and available. There is no exact recipe for preparing raw materials - the ratio of ingredients depends on the required density and quality.

One of the mixture composition options:

• filler – screening of crushed limestone (up to 90%);
• binder – cement (7-15%);
• water (up to 5%);
• plasticizers;
• dyes.

Comparison of technical characteristics of Lego bricks versus classic ones.

You can find many opponents of Lego technology online who leave negative reviews. But take a closer look - basically all the shortcomings of Lego bricks are far-fetched and have nothing to do with practice. Most likely, these are the same professionals who are terribly upset about the reduction in prices and the arrival of new people in their business. Let's compare a Lego brick with its regular fired counterpart in terms of basic technical indicators.

Data taken from open sources. We took the strength of the brick as a starting point. It may vary depending on the production technology. M150 is the recommended minimum strength for the construction of load-bearing structures.

Conclusion.

Currently, Lego bricks are considered as a new generation material. They are still treated with interest and caution. But increasingly, “Lego” (brick) reviews from builders are receiving positive reviews due to the quality of the material and ease of installation, as well as favorable prices, practicality and impeccable appearance. And these are quite weighty arguments.

Production of Lego bricks (that's the name of the new building material) 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 confidently expanding its niche, attracting more and more new fans.

Why Lego?

The name of the wall material comes from a popular children's construction set. Brick, or block, although larger size, looks very similar to the details of a 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 comes in two types: cement-clay and cement-clay-sand.

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

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

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

By type of lock connection:

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

By appearance:

• smooth front side;
• textured.

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

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

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

Production process and mixture composition

Used in the production process next technology manufacturing:

• crushing and sifting mixture components;
• dosage and mixing of the components included in the solution;
• molding;
• high pressure pressing.

Enterprises producing Lego bricks use the following compositions for their production.

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

A mixture based on limestone is considered to be of the highest quality; products made from it are used for the construction load-bearing walls.

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

The mixture for Lego bricks also includes the following materials:

• pigments;
• plasticizers.

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

Advantages and disadvantages of the material

The advantages of the material include:

• production of bricks without firing;
• increased productivity when laying walls;
• beautiful appearance;
• accuracy and ease of laying;
• lighter weight of products, which reduces the load on the mason;
• opportunity to use through holes in communication blocks;
• high frost resistance, the material tolerates 30 freezing cycles;
• good wear resistance, absence of cracks and chips, which reduces the percentage of waste;
• environmental friendliness;
• fire resistance;
• high moisture resistance;
• using special glue when laying walls, which is much cheaper than cement-sand mortar;
• variety of shades and textures;
• a perfectly smooth surface of the material is the basis for equally smooth walls;
• saving money by using glue as a binder.

With such an impressive list of advantages, Lego bricks also have disadvantages. The following can be distinguished:

• relatively low heat saving coefficient;
• the use of expensive dies made of high-quality steel;
• high sorption humidity of the material.

To obtain 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 should be at least 170 kg/cm².

Production equipment

The main equipment for the production of Lego bricks is special machines. They can be 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. Capacity 1000 pcs. per shift. They are manual and electrically driven.
2. Machines for individual production of the middle category. They produce 2,000 Lego bricks per shift.
3. Mini-factories and machines for industrial production with a productivity of 750 pieces per hour.

Quality machines for small business must withstand up to 500,000 operating cycles, industrial mini-factories can withstand an operating range of 600,000 - 1,000,000 cycles.

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

Material manufacturing technology

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

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

• crushers and screening sieves connected into one common unit;
• a working mixture preparation department, consisting of bins for mixing all those ingredients from which Lego products are made;
• conveyors and conveyor belts for various purposes;
• pallets and electric vehicles for packaging and transportation of finished products.

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

Each type of block is made using a separate matrix. The material for it is high-quality steel grade 40 ХН. 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 working cycles. Low-quality material quickly fails under such loads.

Reading time ≈ 3 minutes

A modern building material called “Lego brick” is visually similar to the parts of a children’s LEGO construction set. The presence of protrusions on one side of the product and rounded recesses and recesses on the other ensures quick laying and high quality connections. We will use the material for the construction of load-bearing walls, partitions, cladding, laying out support pillars and decorative columns.

Design and manufacturing features

Building materials are produced using a special machine. The composition of Lego bricks includes screenings of limestone rocks, binding material (usually Portland cement), water, and dyes. Standard dimensions of Lego bricks can be 250x125x65 mm or 300x150x100 mm. Manufactured using hyperpressing method. The quality and reliability of building materials is affected by the limestone fractions or sand used: what smaller size components, the higher the strength finished product. The approximate weight of a Lego brick is 3-3.5 kg.

Technical characteristics of Lego bricks

Widespread use of building materials is justified high density and wear resistance of products. Lego bricks are suitable for holding finishing works, as well as for the construction of load-bearing walls. Possesses this group bricks with the following characteristics depending on the manufacturer:

• frost resistance: at least 200 cycles;
• water absorption: about 5-6% (suitable for use in regions with high air humidity and a large number precipitation);
• density: 1550 kg/m3;
• thermal conductivity 0.4-0.45 W/(m K);
• strength grade: M100-200 (suitable for the construction of multi-storey private houses or commercial buildings).

Lego bricks are 1.5 times more durable than their ceramic counterparts. The resulting structure is minimally susceptible to mechanical influences and is reliable during periods of seismological influences.

Advantages

The positive properties of the material are not its only advantage. The unique shape ensures ease of laying walls or partitions and high-quality connection of elements. The most important advantages of using a new type of brick include:

1. Possibility of simple installation of communications inside voids.
2. Low cost of products.
3. Wide range of colors (from light gray to rich red, dark blue, pink or yellow).
4. There is no need for subsequent finishing of walls and structures made of Lego bricks (it has a smooth surface or has edges with a slight texture).
5. The low weight of the bricks does not require the preparation of a buried foundation (for buildings of 1-3 floors).

The material is also attractive due to its versatility of use. Suitable for both finishing buildings and laying out decorative indentations and stoves. Can be used for the construction of gazebos and fences.

Flaws

The disadvantages of Lego bricks include the fact that at the moment there are no branded manufacturers of this building material, unlike aerated concrete and others wall materials. Those. These are mainly garage manufacturers, most of which cannot provide quality certificates. Perhaps the most important drawback is that due to its relative novelty, this building material has not stood the test of time and it is not clear how it will last in 30-50 years.