Cinder block is an inexpensive and available materials, it is used in the construction of both garages and residential buildings. The idea of ​​making a cinder block with your own hands can be brought to life. How exactly to do this is useful for many developers to know.

General information and requirements for building materials

The cinder block is building material, which is manufactured in a factory using the vibrocompression method. Concrete is usually used as the main material. Working with this material is very fast, and a structure made from it will be quite warm.

Should I start making blocks myself? If you plan to make several cinder blocks to build a garage or bathhouse, then making cinder blocks with your own hands will be completely justified and will save a significant amount. But to build a house you will need much more building materials, so the purchase costs necessary materials will be significantly higher. In this case, buying cinder blocks will not only be more reasonable, but also easier.

During manufacturing, it is important to know the requirements for finished building materials:

1. The size of cinder blocks may vary depending on specific requirements The standard size is 39x19x18 cm. There are also so-called cinder blocks for partitions, or half-blocks, their dimensions are smaller: 39x12x18.8 cm. The standard weight of a cinder block, depending on the type of voids, can be 17-25 kg. Most often, there are 3 holes in each block.
2. For high-quality manufacturing, it is important to comply with the requirements regarding the composition of the cinder block.
3. It is preferable to use coarse sand.
4. The quality of the cement must be high enough (M400 or higher).
5. It is better to take blast furnace slag. For the production of blocks, slag is usually used - a product of coal processing. But due to active gasification of slag, less and less slag is produced, so now it is being replaced with more expensive zitocrete.
6. Use special equipment for vibration compaction.

Geometry is one of the most important requirements in manufacturing. If a cinder block, made with your own hands at home, has uneven surfaces, then the cost of building walls will be more significant.

To obtain an even cinder block, the mold is filled not only completely, but even heaped, so that the concrete “settles” after compaction.

What can you make a cinder block from?

What cinder blocks are made of is clear from the very name of the building material. One of the components of the cinder block solution is slag, which is formed as a result of coal processing.

Additionally, the blocks may include other materials: sawdust, crushed or old brick, metallurgical waste or products of coal combustion in boiler houses. All these materials will not interfere with the production of cinder blocks, as they will give them good thermal insulation properties.

The mixture also includes coarse sand, water and cement. To increase density, you can add concrete strengthening mixtures.

The standard composition of the mixture for blocks includes sand (2 parts), cement (1.5 parts), gravel (2 parts), slag (7 parts), 1.5-3 parts water. But in fact, not all craftsmen adhere to the standard recipe, preferring to make the composition depending on the available slag and the parameters of the future structure.

To ensure plasticity, when making cinder blocks at home, you can add a plasticizer to the composition (5 g per block). This component allows you to improve the strength of the block, its frost resistance and water resistance, and prevent the appearance of cracks. A plasticizer is added during vibration casting.

You should be very careful when adding water to the mixture: it is important that the blocks do not spread when removed. Checking the amount of water is very simple: if the composition crumbles when it falls to the ground, but sticks together well in your fist, then the water content is normal.

Manufacturing of mold and vibrating machine

Before making a cinder block, you need to make two main elements - a special mold and a vibrating table. The better the shape is made, the higher quality the building material will be. Before manufacturing a special mold and a vibrating table, drawings of these devices should be prepared. Installation of a vibrating table for the production of cinder blocks is carried out on solid and flat surface which provides a high degree of stability. There should be a sufficient number of molds for the cinder block (about 10) so that the work goes quickly. It is important that they are approximately the same size.

Making a mold for a cinder block is easy. The forms are formwork into which concrete is poured. Most often molds are made from wood, although other materials are suitable. To make holes, you can use ordinary glass bottles: you will need 3 of them per block.

To make a sufficient number of cinder blocks for the construction of a bathhouse, it will be enough wooden forms. For larger production, it is necessary to master the technology of manufacturing cinder block machines. To make a homemade machine, you will need following materials and equipment:

• grinder, welder;
• motor with a power of 0.5-0.7 kW;
• iron sheet 3 mm thick;
• fittings (12 mm).

The block processing time will be up to 15 seconds. Then the vibrating platform can be removed and storage can begin. On average per homemade machines for a cinder block, you can make about 50 blocks in 1 hour.

The profitability of homemade cinder blocks is beyond doubt, but are there really reliable ways to ensure stable high quality at sufficiently high production volumes? Let's try to answer this question and consider the main methods homemade DIY cinder block.

Choosing a manufacturing method

Actually, there are not as many ways to make cinder blocks as there are devices for this. In all cases, slag concrete must be mixed in a concrete mixer, and in no case by hand. At this stage, the sequence of adding ingredients, their proportions, duration and other mixing features play a role.

But for molding cinder blocks, there are a large number of various dies, presses and machines. In general, all production methods can be divided into:

• manual, when the mass is formed by compaction in single molds;
• partially mechanized, where manual lever presses are used;
• fully automated, based on vibration shrinkage or hydraulic pressing.

Obviously, mechanization makes it possible to increase the accuracy of production parameters, therefore lever pressing and vibration shrinkage methods are most preferable. Small hand tools will be relevant if you only need to produce a couple of hundred stones.

After molding and setting the mass, the cinder block must be removed from the mold. These actions should also be mechanized; most defects appear precisely at the planting stage. The simplest and most reliable devices for this are a mold lifting block and a damper.

Mechanisms can also be used for drying and storage. At a minimum, when moving raw material to the main drying site, it is preferable to use carts and manual forklifts.

Equipment: what to buy and what to make yourself

The desire to save money is quite reasonable, but there is equipment that is very difficult to assemble yourself and vice versa: you simply cannot buy some equipment.

The production cycle, we analyze it in stages

To prepare cinder concrete, you first need to mix the bulk materials, then add water in small portions. You need to knead until the mixture acquires sufficient plasticity and stops crumbling if you squeeze it with your hands. It is better to add water using a spray bottle, gradually wetting the mixture until it becomes semi-dry.

The prepared mixture can be poured directly onto a cement floor or onto hard sheet substrate not far from the machine. From there we scoop it up with a shovel and carefully fill out the form. Periodically, vibration shrinkage is used to compact the concrete and squeeze out large air bubbles. When the mold is filled to the brim with the mixture, it needs to be compacted.

In some machines, for this purpose, a response matrix is ​​used with slight bending, with which the cinder block is compacted in vibration mode. In other cases, the same frame is connected to a system of levers and simply compresses the mass inside the mold. Upon completion of molding, you need to wait 5-10 seconds and remove the mold from the product, leaving it on the floor to pre-dry. If the molds are equipped with dampers, it is better to immediately lift the block and place the product on the pallet.

The cinder block takes from several hours to several days to dry. It all depends on the composition of the mixture and the technical equipment of the site. Subsequently, the products are carefully transported to the storage location, where they are stored.

What composition of slag concrete is optimal?

Best used as a main filler granite screening. Its structure is small scales; this material is well bonded in the mass and gives excellent strength. A lighter, but not as hard, cinder block is made from crushed slag from energy and metallurgy enterprises. The latter type is characterized by better thermal insulation properties.

Cement - only Portland grade not lower than 400. More precisely, cement grade 300 can also be used, but with an increase in its content by 15-25%.

Sand is used in cinder block to increase density, which is not always required. The material must be of quarry origin and must be washed. A total of sand in total mass up to 20%. The filler is mixed with cement 400 in a ratio of 8:1 or 9:1.

What else may be included:

• sawdust of all types;
• foam chips;
• brick, concrete battle;
• plasticizers and modifiers.

The use of the latter will ensure early setting of the mixture and relatively free setting of the products. It is also recommended to use additives to increase frost resistance. It will be useful to familiarize yourself with the standards set out in GOST 6133 as amended in 1999 - here are not only the requirements for raw materials, but also the rules for organizing production, some technical specifications and quality control methods.

Cinder block storage

The cinder block gains full hardness a few weeks after production. All this time it is exposed to natural street drying under a canopy. If there is no space for storing cinder blocks in one layer, it is permissible to stack pallets with one row of cinder blocks on top of each other. During the main drying period, it is important to ensure good ventilation of the stack and free removal of moisture.

After drying for two weeks, the cinder block can be stored without pallets, but be sure to at least cover it so that rainwater did not wash out the fastening agents. If you need a cinder block for your own construction, prepare it in advance: one winter in outdoor conditions and most of the defects will manifest themselves.

When pouring concrete, builders try to ensure complete penetration of the mass into all formwork cavities and prevent the formation of air bubbles inside. Under the pressure of its own weight, concrete becomes less fluid and may be distributed unevenly.

Another problem is poor wetting of the reinforcement. If air remains around the metal rods, the reinforcement actively corrodes, not to mention reducing the strength of the structure. Air cavities inside the concrete mass are great place for moisture condensation.

During frosts, the ice formed inside the monolith breaks the concrete with microcracks.

To minimize negative phenomena, vibrator seals are used. They are divided into several groups:

Surface vibrator

It is a plate or ruler that vibrates under the action of a mechanical device. The device is moved over the poured solution, compacting the surface and causing compaction of the deep layers. It is used when laying screeds of shallow depth, since vibrations in the concrete mass are transmitted over a short distance.

How to properly level concrete with a vibrating screed - practical advice

Deep (submersible) vibrator with mechanical drive

Based on the name, it works inside the mass of the solution, spreading vibrations throughout the entire depth. The effectiveness of such a device is an order of magnitude higher, since it covers all layers of concrete, and not just the surface.

Structurally, it consists of a submersible element, a motor and a connecting hose that transmits energy to the working tip.

Deep vibrator for concrete Sturm CV71101. We check the reliability of the vibrator in operation

The main difference from a mechanical one is that the drive is located directly in the working pin. The small electric motor does not have enough power, so high-frequency alternating current – ​​several hundred Hz – is used to power it. For this purpose, high-frequency vibrators are equipped with a converter.

Despite the technological differences, the operating principle and tasks of all designs are the same. Under the influence of vibrations, the mass of concrete becomes fluid and penetrates into all cavities inside the formwork.

Wetting of the surface of the reinforcement is almost 100%, which ensures reliable protection from corrosion. When processed with a vibrator, air bubbles come to the surface, the mass becomes homogeneous and monolithic.

Cinder block is one of the most popular materials for the construction of walls of one-story buildings. It is distinguished by its low cost and the possibility of producing it independently at home.

Cinder block - wall stone

This building material is intended for low-rise construction. There is an opinion that if you include “high” grade cement in the mix, then you can make homemade blocks solid foundation for a bathhouse or a house. However foundation blocks must withstand enormous loads, so blocks should be purchased from a factory rather than made independently.

Cinder blocks are:

• hollow;
• full-bodied.

Due to sufficient strength characteristics, solid cinder blocks used for cladding and construction load-bearing walls, as well as partitions. At the same time, hollow products have good heat and sound insulation. Due to voids, raw materials are significantly saved, which means the cost of production is much lower.

Cinder blocks are also used as additional insulation when constructing frames.

How to mix a solution to create a cinder block?

The name of the building material “cinder block” speaks for itself. This means that the main component of the solution will be the slag obtained in the blast furnace, which should be sifted through a special sifter (sieve).

We will need:

• 7 parts of the main filler (slag will serve as this);
• 2 shares of gravel having fractions of 5-15 mm;
• one and a half parts of cement (it is best to take grade M 400, 500);
• about 3 parts water.

In addition to slag, other components can act as the main element: clay, expanded clay, sand, gravel, crushed stone, gypsum and many others. It should be noted that if you choose blast furnace slag as a filler, then other additives must not be used. If you want to get a colored cinder block, then you can add chalk or red bricks reduced to fine crumbs into the solution (they should be crushed).

In addition, during the production of cinder blocks, make sure that the solution does not spread.

Component name	Qty components	Density, kg/m3	Water absorption,%	Mrz, cycles not less	Compressive strength, kg/cm2
Cement, kg Sand, kg (m3) Crushed stone, kg (m3) Water, l (depending on the moisture content of the components)	500 900 (0,52) 900 (0,52) 100...200	2350	4	200	410
Cement, kg Screenings, kg (m3) Sand, kg (m3) Water, l	500 920 (0,54) 1150 (0,7) 100...200	2160	4,5	200	400
Cement, kg Sand, kg (m3) Water, l	600 1550 (0,9) 100...190	2200	5,3	200	436

Tip for obtaining durable blocks: you need to add a plasticizer to the solution (you can buy it at any hardware store). Then you will receive not only durable, but also frost-resistant and waterproof blocks.

When you are going to set up the process of creating cinder blocks yourself, you should understand that there is no universal solution recipe. Each master selects his own unique formula through trial and error. If you are a beginner, you can use the standard one.

Cinder block production methods

There are two ways to obtain such blocks on your site.

1. Using formwork, that is, a form made of lumber or steel sheets.
2. Based on the operation of a special machine.

Video - Making cinder blocks by hand

Video - Cinder block walking mobile machine

Video - Machine for making cinder blocks

Tools and materials for block production:

• molds (wood or metal), or vibrating machine;

  2,3,4 – pallet blanks. 5,6,7 – frame of the matrix from below (corner 25x25). 8 – bar for fastening hollow cores. 9 – emptiness. 10 – upper void plug. 11 – lower void plug
  
  
  
  
  
  
  
  
  
  
  

• concrete mixer;
• leveling spatula;
• shovel for pouring mortar;
• solution.

Instructions for making your own mold

The design of the mold has the following form: bottom and side walls. Between a pair of transverse boards or sheets of metal, you should fasten the crossbars at the required distance for you. Maintain a step that corresponds to the size of the required cinder block.

Because get it finished product it will be difficult to remove from the mold; the design of the container must be collapsible. For production efficiency, make formwork designed to produce 4-6 cinder blocks.

To make a mold to create cinder blocks you will need:

• iron sheets 3 mm thick;
• 5 mm iron strips (several pieces);
• cylinders, 4 cm in diameter;
• welding machine;
• Bulgarian;
• chalk for marking.

Stages of manufacturing a single split metal mold

Step 1. We mark the sheet according to the size of the blocks: we will need two longitudinal sides and two transverse ones. We cut out our plates with a grinder.

The width of the longitudinal plate is 210 mm, the length is 450 mm, the transverse plate is 210 by 220 mm.

Step 2. Wings 3.5 cm high should be welded to the bottom of the cinder block mold so that the mold does not move, and a handle to quickly release the poured solution from the mold.

Step 3. Notches are made along the contour of the transverse and longitudinal walls in order to hook the mold onto the longitudinally installed walls.

Step 4. Let's assemble our form.

Step 5. To create voids in the cinder block, we make hanging cylinders. They must be welded to a plate 3-4 mm thick, which should seem to penetrate the cylinders closer to the top. We make notches on the end walls of our container to hook them.

Video - Do-it-yourself mold for cinder blocks

Production of cinder blocks using a split mold

Forms have any dimensions. Standard sizes structures are 90x190x188 mm; in private construction, other sizes can be used, for example, 40x20x20 cm. In order to save material, it is better to use forms with cells of 4-6 blocks and cylinders (squares) to create cavities.

A homemade metal form (detachable) looks like this.

Let's consider step by step process production of cinder blocks.

Step 1. Mix the solution in a concrete mixer.

Step 2. Pour the mixture into our mold with a shovel. In this case, the mixture is thick. You can also use a liquid solution.

Step 3. Be sure to ensure that the solution fills the container evenly. To do this, compact the filled solution. We control the filling of the form to the brim. Align top layer using a spatula.

Step 4. If the solution is dry, then you should use a special lid, the holes in which will block the bayonets in the mold. This device will help compact our cinder block. This type of lid is not used for liquid solutions.

Step 5. We are moving our unit to an open area for further storage. After 30-40 minutes, remove the bottom, sides and top cover. To better remove the cinder block, we use a regular hammer to hammer down the top of the wall and a longitudinal strip with cylinders.

Step 6. It will take us at least a day to dry completely.

Production of cinder blocks using a vibrator machine

Step 1. We mix our solution, taking into account the proportions. Particular attention should be paid the right amount water, because the cinder blocks should not spread when you remove them from the mold.

Kneading

To find out the correct consistency of the mixture, do a small test. Squeeze the solution in your hand: if it connects in it and does not spread when it falls to the ground, it is a good and correct solution.

Step 2. We fill our form with a solution, with a slide.

Step 3 . We turn on the machine for 2-4 seconds, after which the loaded composition will be compacted. We level the mixture with our hands so that the iron pins (cylinders) are visible.

Step 4. If there is not enough mixture in the form, it needs to be replenished, insert the clamp and turn on the vibrator again. The completion of formation is indicated by the settling of the clamp on the stops.

Step 5 . Our vibration form should be turned on again for 6-10 s.

Step 6 . Close the top with a lid with holes for the cylinders. And we do another tamping by raising and lowering the lid 4-5 times.

Step 7 . Then, without turning off the machine, the uniform is removed - just take the machine to you.

Using a vibrating machine, you can produce up to 500 cinder blocks per shift.

Step 8 . We dry the blocks for 5-10 days. Complete hardening of the resulting building materials will take place after a month, while the humidity should be high and the air warm.

Step 9. After a day, the blocks can be moved to storage locations (they will not be broken), but they can only be placed together after a week. And if you do add a plasticizer to the solution, then after 6-8 hours they can be moved and stored.

Of course, you shouldn’t purchase a vibrating machine for a single production, but you should pay attention to compaction when creating cinder blocks. special attention(the quality of the product depends on this process). In this case, you can use a regular vibratory grinder, on which you just need to place our mold with the mixture.

Video - Production of cinder blocks using a vibrator machine

Features of storing cinder blocks

The resulting products are stored in pyramidal stacks, one hundred pieces at a time.

At the same time, they are stacked at small intervals. All you have to do is dry the material for a couple of months, then you can start building a bathhouse, an extension or a shed.

What are the features of cinder block production?

When producing cinder blocks, special attention should be paid to drying. For example, any dent or unevenness will ruin the building material. Another requirement for material quality is geometry. A large number of irregularities and defects is a prerequisite for increased costs for finishing the constructed walls. Therefore, in order for the product to turn out smooth, you should fill the mold or vibrating mold to the brim. Do not skimp on pouring the solution in heaps, because the vibration will shake out your mixture.

For better plasticity, when mixing the solution, do not forget to add plasticizer at the rate of 5 g per block. This will save the product from possible cracks, increase strength and frost resistance. For construction small bathhouse You can mix the solution by hand, but a concrete mixer will help speed up the process. You just need to buy or borrow a small unit with a capacity of 02-0.5 cubic meters. m.

Video - Homemade concrete mixer

Before preparing the mixture, the slag is moistened 5-6 hours before. This will allow better binding of cement grains and filler fractions. It should be noted that if you are filling wooden or metal forms without the possibility of vibrating, the mixture should be liquid.

Pros and cons of using cinder blocks

The advantages of cinder block include:

• possibility of production at summer cottage or in a private home;
• drying of the material can take place in an autoclave ( industrial production), and on outdoors(for self-production);
• the cinder block building carries minimal losses heat;
• the material is inexpensive;
• construction of the building is carried out quickly, taking into account large sizes blocks;
• when mixing the solution, you can, by changing the proportions, give it certain qualities;
• You can produce cinder blocks of any size.

Disadvantages of cinder block:

• low frost resistance, but with the use of a special additive they can be increased;
• there are doubts about environmental friendliness, especially for products made from blast furnace slag;
• As for the liquid absorption characteristics, the material has strong moisture absorption and requires special protective coatings;
• fragility (this material is clearly not suitable for the construction of high-rise buildings).

1. Blocks made with the addition of cement have the highest strength. The next place is occupied by lime blocks.
2. If small granules are replaced with part of the sifted sand, the strength of the products will increase slightly.
3. A combination of cement and lime (or clay) in a 3:1 ratio will allow you to save money, which will not affect the quality at all.
4. Before you start pouring the solution, the molds should be cleaned and wiped. This will prevent the resulting blocks from sticking to the bottom and walls. For such wiping, diesel fuel, used oil or similar products are used.
5. The density of the solution is a direct indicator of the rate of hardening. The thicker it is, the faster the block can harden. The main quality characteristics of cinder blocks depend not only on the production technology, but also on the choice of solution. Below are various types mixtures, the use of which demonstrates certain characteristics required of the material.

Video – Cinder block. Instructions for a beginner

The popularity of cinder block is due to its practicality, low cost and ease of laying. From this material you can independently build houses, outbuildings, bathhouses, garages and other structures. And it is not at all necessary to purchase ready-made blocks, because making cinder blocks with your own hands at home is not particularly difficult. It is enough to study the features of the building material and the sequence of actions in the masonry process. From this article you will learn how to make high-quality cinder blocks at home, what requirements should be followed, and what mistakes should be avoided.

What is a cinder block

Let's look at what a cinder block is made of. This is a regular parallelepiped 39 cm long, 18.8 cm high and 19 cm wide. The more correct its shape, the easier the laying process will be. Blocks can be solid or hollow. Solid products are used for the construction of load-bearing walls and interior partitions. In contrast, hollow blocks, having a void ratio of about 30%, are more economical. The voids make cinder blocks warmer and increase their sound insulation properties. In addition to the construction of walls, such products are used to insulate concrete frames of buildings.

The production of hollow cinder blocks requires the presence of several holes. The number of holes can be 2 or 3. The shape of the holes can also be very different: round, rectangular or square.

We manufacture DIY cinder block mold

The first step is to purchase or make your own molds for cinder blocks. It is in them that cinder blocks will be made with your own hands. You can make one form if necessary small construction. If you want to speed up the process of making cinder blocks at home, you can make a blank designed for the simultaneous production of 3-6 blocks. Design drawings are prepared in advance.

Let's look at how to make a mold with your own hands, the dimensions of which are 400x200x200 mm. To do this, you will need boards or sheets of metal with a thickness of at least 3 mm. The structure itself consists of a bottom to which the walls are attached. The height of the walls corresponds to the expected height of the parallelepiped.

To form voids, metal pipes with a diameter of about 6–9 cm are taken. They must first be processed with a grinder so that they form cones. This is necessary to ensure ease of removing them from hardened cinder concrete or removing the mold from a block that has not yet hardened. The pipes are connected by a metal jumper and secured to the bottom or side walls of the mold.

The cinder block production technology allows the use wooden blanks in the shape of cones. If you go completely the simple way, then to make cinder blocks, bottles filled with water are used, which are sunk in the solution. However, in this case, after pouring it is necessary to wait until the solution hardens in the mold.

The form can be detachable. To do this, the walls are secured so that they can be easily removed. In this case, the finished cinder block can be easily released from the mold. Grooves are cut into the long walls of the mold, into which short transverse walls are inserted.

During the manufacturing process of the mold, you will need a lid, which will ensure leveling of the surface of the solution, and will also serve as a kind of press. Holes must be made in the lid for the conical components if they are not provided for fastening to the lid. If the conical protrusions are rigidly fixed to the lid, then the lid also acts as a press. If readers are interested in how to make cinder blocks solid, then to do this it is enough to remove the conical cylinders from the structure and make the lid monolithic.

Manufacturing of vibration machine

To provide best quality of the resulting products, special equipment is used for the production of cinder blocks at home. This is the so-called vibrating machine. It allows you to create vibration after pouring the solution into the mold, which helps to compact the solution and increase the strength of the product. Let's look at how to make a homemade vibrating machine yourself. Its scheme is quite simple.

Vibrating machine for the production of one block

By its design, the vibrating machine consists of the following elements:

• A metal box (shape) designed for the simultaneous production of 1–3 cinder blocks with your own hands. The box is made of metal sheets. Its dimensions correspond to the dimensions of future products.
• Cylinders for forming voids. Pieces are used for this purpose metal pipes, which are processed with a grinding wheel to form a taper. The cylinders are connected to each other by a metal jumper along long side shapes and attached to the side walls. The distance from the bottom of the cylinders to the bottom should not be less than 3 cm.
• A slotted lid that fits over the cylinders.
• Handles on the sides for removing the mold from the blocks.
• Electric motor with a power of 0.5–0.8 kW. It is bolted to one of the walls of the mold.

WITH reverse side Eyelets are welded into the mold for attaching the cylinders. If it is necessary to make solid blocks, the cylinders can be easily removed from the eyes. The finished equipment for making cinder blocks is cleaned and painted.

With the help of such a machine, a cinder block at home is very durable and has the correct geometry.

After making the cinder block molds, you can begin the actual production process.

Proportions of solution for making cinder blocks

There is a specific recipe for the production of cinder blocks:

1. The main filler is 7 parts. Slag filling is usually used, but it can be replaced with crushed ceramic bricks, gypsum, sawdust, gravel and other similar components.
2. Cement - 1.5 parts. You should take cement of a grade no lower than M400.
3. Sifted sand - 2 parts.
4. Water until thick. To determine the optimal thickness of the solution, you need to squeeze the solution in your hand and then throw a handful on the ground. At normal density, the solution will disintegrate, and when compressed again, a single mass will form again.

The cinder block production technology provides for the additional introduction of a plasticizer intended for concrete into the solution. It helps to increase product strength, water resistance and frost resistance. The plasticizer is taken in the amount of 5 g per 1 block.

Technology for self-production of cinder blocks

Before making cinder blocks, you should study the recommendations experienced craftsmen, telling about the most popular mistakes made by beginners.

Scheme for the production of one block with manual ramming

The production of cinder blocks at home consists of several stages:

1. Prepared concrete mortar. To do this, it is better to use a concrete mixer.

2. Concrete mixture is poured into the prepared form. It is applied with a slide, which settles during the compaction process. When making in a conventional form, you can use the rule by which the mixture is smoothed flush with the walls.

3. The mold is closed with a lid.

4. If a vibrating machine is used, it is turned on for a few seconds, during which the mixture is compacted. If you use a regular mold, you can tap the sides with a hammer. This is necessary so that air bubbles come out of the concrete and all voids are compacted.

5. The compacted mass can be immediately removed from the mold, but it is recommended to keep it inside the mold for 24 hours.

Many people are interested in the question: how long does it take for the finished product to dry? Within a day, the blocks can be transferred to a permanent storage location. If a plasticizer was used during their manufacturing process, the solution hardens within 7–8 hours. During storage of the material, it should not be exposed to direct sunlight. It is best to store the blocks in a warehouse at a constant temperature and high humidity. After a month, you can build any structures from the blocks.

As you can see, making a cinder block with your own hands is quite simple. And its cost is such that it allows you to save twice on materials.

We figured out how to make a cinder block with your own hands. If you need to build a small outbuilding on your site, then there is no need to buy a ready-made cinder block. It's easier to make it yourself by buying cement and a slag machine. Moreover, you can make the equipment for this yourself.