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Homemade machine for making building blocks with your own hands. Technology for making building concrete blocks with your own hands Making building blocks with your own hands

Depending on the desired result, the shape for making the block will differ. The construction market is full of foreign/domestic manufacturers of concrete blocks. They produce material of any complexity category. When self-repair, the option of creating a block from at home is quite real.

Please note: installation of blocks will take much less time compared to other materials due to their size.

Scope of application

More often, concrete blocks are used as the basic element of buildings: garages, multi-storey residential buildings, offices, private houses, summer cottages, etc. The scope of application is not limited to large-scale construction projects. It is possible to independently produce/use concrete blocks at home. The only difficulty: it is necessary to use additional construction equipment(dryer, concrete mixer). A closed room (utility room) with a heater can be used as a dryer. The required temperature for a DIY dryer is 70 degrees. Concrete forms are used for the following products:

• building concrete material;
• decorative architectural elements(vases, );
• paving slabs (type may vary);
• fencing (including decorative ones);
• reinforced concrete building slabs.

Feature: Depending on the product we need, the quality, parts, mold casting will be different. To create a shape and then make the product with your own hands, you should accurate calculations, carefully monitor the process, follow the rules of creation, know the features of the material/future product.

Material for production

The variety of concrete blocks and the features of their application have brought many new materials to the market. The source material that will give the mold its quality characteristics may vary depending on the requirements for the final product. Each material is designed for the price category, quality, processing methods, and technical indicators.

Silicone molds for volumetric products.

The production of products with small parts, the creation of the most accurate copies, requires the use of elastomeric molds. Application area:

• complex volumetric products;
• high-precision bas-reliefs;
• architectural constructions.

The production of these products is impossible without the following components:

• rubber (synthetic rubber);
• formoplast;
• compounds (polyurethane/silicone).

Approximate material consumption: 10-40 kg/m2.

Disadvantage: making such a product at home is extremely difficult. Specialized cooking and crushing equipment should be used. In addition, before you start working on the substance, you should consult a specialist. Due to the intricacies of working with the material, such consultation is mandatory.

Plastic

Large-sized constructions that do not require precise geometric calculations are best made from plastic molds. Basic materials:

• fiberglass (low compatibility with the cement matrix, which is why cracks and breaks are possible);
• hard plastic (prone to warping, so the main area of ​​application is paving slabs, curbs, concrete paving stones);
• ABS sheet plastic (prone to delamination, additional silicone lubricant should be used. Small-sized material can be made from it);
• sheet/film polystyrene (represents texture and outlines of objects well, is a fragile material);
• PVC plastic (the most durable, high-quality. Adhesion is as low as possible, does not require cleaning or lubrication).

If you decide to use plastic to make a block, be sure to ensure that you have rigid formwork. It is the formwork that will give the material the necessary relief, rigidity, and ensure easy removal. If this rule is not followed, the product will either fall apart during drying, or the result will be of poor quality and short-lived.

Creating a form yourself

Please note that final processing of the product should be carried out after complete hardening. If the product is raw, further actions (for example, cutting) are illogical and ineffective. Creating a form:

• Start production with available materials. For example, you can use polystyrene foam. Cut out the stamp, fill it with a pre-prepared mixture (sand and cement). You will receive one copy of the concrete decoration mold. You can use plastic containers of different sizes instead of stamps.
• Assemble the product from scraps of chipboard and wood. The basic rule is that the surface should be smooth. If it is rough, cracks will form between the blocks and the surface or the concrete will be unevenly distributed, which will make it difficult to remove the product.
• Fill the mold with the concrete mixture and leave it for several days until it dries completely (depending on the type of mixture and material of the product. Check the instructions for the material for the required indicators).
• After complete drying, carefully remove (for example, with a spatula or similar object) the finished product.
• Carry out (if necessary) the required decorative work.

If you do not have the time/desire to carry out the process yourself, use the services of construction companies. By contacting the company you need, you can place an order for the form you need. Explain the purpose of construction, the desired material, and specify the timing. For a set price (must be agreed upon in person, by phone), you will be advised and your order will be accepted. Thus, you can be confident in the quality of the resulting product, its durability, and the correctness of its creation.

Concrete foundation blocks 20x20x40 cm can be made at home. For this you will need: a form, roofing felt, concrete (sand, cement, crushed stone). Let's talk about how to properly make blocks with your own hands.

The mold is made of wood or iron. It is a durable box, 20 cm high and wide, the length depends on how many blocks you plan to make at the same time. Inside the box you need to make partitions every 40 cm, their number also depends on the number of planned blocks. It is better not to make the bottom in a box. For ease of use, two handles should be attached to the sides. You need to make several such forms, so the work will go faster. You can make a mold for one block, but the manufacturing process required quantity blocks will take much longer.

Prepare the solution. The quality of the strength of the blocks mainly depends on the brand of cement. The higher the grade of cement, the stronger the concrete will be. The ratio of sand and cement in the working solution is usually indicated on bags of cement. A larger amount of sand is added to high-grade cement. Now the solution is sold ready-made, packaged in bags. Any crushed stone is suitable, but it is better to take fine-grained one. The solution should be thick (so that it sticks together).

The inside of the mold must be wiped with technical oil or diesel fuel so that the concrete does not stick to the walls. We place the form on a roofing material spread out on the ground. We fill in the concrete and compact it well. The concrete should remain in the mold for two days. After this, we remove the form, but the concrete will still be damp, as it should be. Concrete blocks dry naturally; they cannot be dried on purpose. At this time, they need to be protected from the sun and rain (by building a canopy). In two weeks the concrete block will be completely ready for use.

For greater strength of the blocks, at the stage of pouring concrete into the mold, you can add reinforcing wire.

Such concrete blocks are suitable for a basement, and they are also very good to use for the construction of walls and fences.

Using the method described above, you can make hollow blocks for building walls. To get hollow blocks, you need to place them inside the cells of the form. wooden beam or metal frame.

In the case of making wall blocks, cheaper fillers can be added to concrete instead of crushed stone - expanded clay, slag. The following mortar is perfect for such blocks: cement, expanded clay, sand (1:6:3).

Do-it-yourself foundation blocks of 20x20x40 cm will reduce the cost of construction several times. They will also reduce construction time, since the blocks are larger in size than bricks. Such blocks are suitable for constructing the foundation and plinth of external walls, as well as internal partitions. They can also be perfectly used for the construction of garages and outbuildings.

How to make blocks with your own hands. Video

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How to make your own building blocks. Lightweight wall blocks and their advantages. How to make a wall block production products

In any store building materials or you can purchase special blocks on the market that are used to construct the building. However building stone You don’t have to buy it at all, you can make it yourself.

Wall blocks have many properties:

They are strong, durable, have improved frost resistance and fire resistance. There is also another property of wall blocks - an increase in the usable area of ​​​​the premises due to the thickness of the wall blocks without reducing the quality of heat transfer. That is why wall blocks are confidently replacing conventional construction materials. Wall blocks will help you get high-quality building material at low cost, and therefore high-quality construction. A house built from wall stones will be comfortable and warm, and will also allow you to save a lot of money. Moreover, the cost of the wall blocks themselves compares favorably with other building materials. Wall blocks create a feeling of comfort due to the fact that they have a heat-resistant effect, so in a room made of wall blocks you will be cool in the summer and warm in the winter. That is why heating costs are one third less than in houses built of brick. Another positive property of wall blocks is that walls made from them are much lighter than walls built from brick, thus creating less load on the foundation. This means that there is a guarantee that your house will not only be warm, but also durable and less prone to collapse. Plus, as in geometric progression, your costs for delivery of wall blocks are reduced. Due to their weight (wall blocks are much lighter than, for example, brick), the volumes of delivered material will be greater. So, why should you choose wall blocks to build your house, the pros:

guarantee warmth, comfort, frost resistance and fire resistance

increase usable area rooms due to their small thickness

do not reduce the quality of heat exchange in the room

installed in a short amount of time

their price and the cost of installation are much cheaper than other building materials

DIY blocks

I chose the block sizes 510x250x215 mm (volume of 14 bricks). From scrap sheet iron I welded 11 molds without bottoms. I welded 2 handles on the sides. I spread the roofing material right on the ground and place the form. To prevent the mixture from sticking to the walls of the mold, I wipe them from the inside with a rag moistened with waste oil or diesel fuel. I pour hard expanded clay concrete there. I don't tamp very hard. I remove the first form after filling the 11th - this is about 10-12 minutes. The blocks remain in place for 12 hours. Then I move them under the canopy. They harden at above-zero temperatures for 24 days. I make a canopy from roofing felt, tarpaulin or plastic film. Under it, the blocks will be protected from rain and sun.

Do-it-yourself blocks I tried to make blocks with voids. He inserted two wooden round timbers, turned into a cone and wrapped in roofing iron. The void formers can be round, square, rectangular... Depending on how the blocks are laid, the wall thickness is 215, 250 or 510 mm.

For thick walls it is better to make blocks hollow, for thin walls - filled. Conventionally, walls with a thickness of 215 mm without voids can be called cold, 250 mm - semi-warm, 510 mm with voids - warm.

To make half blocks, I insert a sheet of iron into the mold in the center. In the blanks that are used to form openings in the walls of the house, you have to insert wooden plugs to secure the door and window frames.

Do-it-yourself blocks I tried to make blocks using a vibrator, but the solution goes to the bottom of the mold and the expanded clay does not bind. To prevent this from happening, I welded a common mold for several blocks. The vibrator was attached to the side. I made the walls of the mold higher by 1/3 - this is for concrete shrinkage during vibration.

Fillers can be local non-scarce materials: expanded clay, slag, sawdust, etc. To prepare the mixture, I used cement, expanded clay and sand in a ratio of 1:4:1.

The hardest work is preparing the concrete. To make it a little easier, I first made a manual concrete mixer from a two-hundred-liter barrel. Its rotation axis is shifted by 10 cm relative to the center. I welded crosspieces inside. Thus, due to the eccentric rotation of the barrel and thanks to the crosses, good mixing of the mass was ensured. In 8 turns of the barrel the solution was ready.

In this way I made 500 blocks. They were enough to lay a warm barn measuring 6.2x4 m and add a cold barn to it.

Despite the fact that the blocks are much larger in size and weight than ordinary red brick, the masonry techniques and set of tools remain the same. Banding of masonry in corners and on straight sections of walls is also observed. At the beginning of masonry from blocks, it is advisable to make a belt of red brick on the base or foundation (after waterproofing). It should protrude 30-40 mm outward from the base, protecting the latter from getting wet.

Building blocks yourself

The building block of standard sizes is very convenient to use. The laying goes quite quickly, but on the other hand they are not too heavy. In addition, the walls will be of standard sizes, that is, 200 or 400 millimeters. So, the easiest way to make a mold for blocks is from a cement bonded particle board with at least a centimeter thickness. You can also take sheet metal. Honestly, almost any material will do, but when choosing, it is important to consider how durable the form will be, whether it will not become saturated with moisture, how convenient it will be to get ready-made building blocks out of it, and so on. The choice of material for forms should be guided, first of all, by logic. Of course, to make blocks with your own hands in sufficient quantities, one form will be extremely small. It’s better to make about five or ten forms at once, which will be quite enough to get started. Further, if necessary, the number of forms can be increased. As for the solution for homemade blocks, it is recommended to use one of two options. The first option allows you to make blocks of so-called “cold concrete”. To do this, take a traditional solution, which is prepared from sand and cement in proportions of one to four. In other words, for one part of good Portland cement, you need to take four parts of sifted construction sand. Warm concrete is prepared from cement, sand and expanded clay. The proportions in this case will look like one to four to one. That is, for one part of cement, you need to take about four parts of expanded clay and only one part of sand. Preparing building blocks is not a complicated process. The molds are filled with the solution, the excess solution is removed with a trowel and I try to level it top part block. By the way, the forms should be placed on a flat surface so that the solution disperses as smoothly as possible under the influence of gravity.

After a few hours, the blocks can be carefully removed from the molds and laid out to completely harden. They harden within 24 hours, after which homemade blocks placed on pallets for storage or taken directly to construction site.

Building blocks at home

Nowadays you can buy building blocks at any construction market and a building materials store. Their assortment today is very large, you just need to make your choice and your order will be delivered directly to your home. How to make building blocks yourself at home But you can go the other way - you can make building blocks with your own hands. So, let's look below at the basic principles of how to make your own building blocks at home.

First you need to decide what size you plan to make the building block. The most common size today is 400x200x200 mm. Blocks of such geometric parameters are not heavy, they are easy to lay when building a wall. With this block you can easily make two types of walls, 200 mm thick and 400 mm thick.

To create a mold with which to make building blocks with your own hands. We recommend making the form into several blocks at once; this will significantly speed up the work process and the prepared concrete will be better used. You can make construction ones at home, both solid and with cavities. The mortar for the blocks is made using cement and sand, and the proportion should be 1 to 4 (this is the so-called cold concrete). You can also add expanded clay, sawdust, slag or glass to the concrete mixture (this type of concrete is also called warm concrete). Many people wonder how to make building blocks themselves so that they do not stick to the mold and have a flat and smooth outer surface. To do this, you need to do the following - apply machine oil to the walls of the mold, or even better, oil.

When pouring building blocks at home, the mold must first be filled 45-50%, then compact the concrete and give the mixture a uniform shape. After this, you can fill the form completely, tamp it down again, level the top side, remove the remaining concrete mixture from the brick form and let it harden. The concrete mixture should be allowed to harden for about 30 minutes. Next, you carefully remove the mold and can carry out the next cycle of work. The blocks will harden completely only after 24 hours. Care should be taken to ensure that the blocks are protected from direct contact until they are completely dry. sun rays and rain.

So, you already know how to make building blocks yourself at home, now you can safely get to work. And if you make a form for at least a dozen blocks for one go, then you will be able to make 120-150 blocks a day without outside help

In any building materials store or market you can purchase special blocks used to construct a building. However, it is not necessary to buy building stone; you can make it yourself. Our article will tell you how to make building blocks with your own hands.

Determine in advance the desired dimensions of the future building block. The most common and most popular size: 400x200x200 millimeters. This building stone is not too heavy, but the wall thickness can be 200 or 400 mm (this depends on personal preference).

Molds must be constructed for future building blocks. It is advisable to use cement bonded particle board 10 mm thick and sheet metal (2-3 mm). The mold for the stone can also be made from wood that has been sanded from the inside.

Make the mold into one or more blocks (this will speed up the process of making building stone). Do-it-yourself blocks can be hollow or solid (depending on personal preference), which affects the design of the mold. For “cold concrete”, prepare a solution for blocks from cement and sand (proportion 1:4), and for “warm concrete” - from cement, expanded clay and sand in a ratio 1:4:1. Then fill the block mold halfway with the “raw materials”. Compact the solution (you can use the handle of a shovel) and only after that fill the form with the missing “raw materials”. Level the top surface of the future block building rule, that is, remove excess solution with this tool. After thirty to forty minutes, carefully remove the block from the mold, and form a new building stone in it. To completely harden the solution, the blocks are carefully transported to a special place, protected from the sun and rain. The blocks will completely harden in twenty-four hours.

Lightweight wall blocks and their advantages.

In addition to the traditional material for building walls - brick, in private housing construction today block wall materials such as expanded clay concrete, aerated concrete and foam concrete are increasingly used. What are their differences, features, advantages and disadvantages?

Expanded clay concrete.

Features: Expanded clay concrete blocks are made from expanded clay (foamed and baked clay), used as filler with fractions of 5–10 mm, water and cement. Advantages: The thermal insulation characteristics are superior to brick, gas and foam concrete. Resistant to moisture. High strength, frost resistance

AERED CONCRETE

Features: Aerated concrete is produced by adding lime, cement, quartz sand gasifier (aluminum powder). The material gains strength when high blood pressure and high temperatures in autoclave ovens. Aerated concrete is porous both inside and outside, i.e. its flow-through. Products are manufactured in factory conditions, so product quality is guaranteed. Advantages: Greater geometric dimensional accuracy, more high performance heat and sound insulation, strength.

FOAM CONCRETE

Features: Foam concrete (non-autoclaved cellular concrete) are made from a mixture of water, sand, cement and foaming agent. It hardens naturally in special molds. The structure of foam concrete is closed bubbles of different sizes. Products can be produced privately, directly on the construction site. Homemade blocks do not always correspond to the declared characteristics. Advantages: Due to the closed pore structure, moisture absorption is lower. Aerated concrete and foam concrete have high accuracy of geometric dimensions, which makes it possible to use adhesive mixtures for installation, rather than ordinary masonry mortar. Seam thickness from glue mixture– 2–3 mm, and from masonry mortar – 10–12 mm. This makes it possible to make the wall almost uniform and as warm as possible.

The common advantage of all the materials under consideration is: The high porosity of the materials provides high thermal insulation properties, excellent soundproofing characteristics. Thanks to the peculiarities of the material structure, the walls “breathe”. The blocks are non-flammable, do not melt and do not emit harmful substances when heated. Due to their low weight, they significantly reduce the load on the foundation.

A common disadvantage of all the materials under consideration is: Despite the high thermal insulation properties, walls made of these materials require insulation. The porosity of the blocks requires mandatory protection of the building walls from precipitation. At the same time, it is necessary to maintain the vapor permeability of the structure.

Aerated concrete and foam concrete have an additional disadvantage: low bending strength. Reinforcement must be carried out every three rows of masonry. Tape required monolithic foundation or monolithic ground floor.

How to make a wall block

Building blocks have a lot of advantages. These include the convenience and speed of construction of buildings, the relative cheapness of construction, and others. Wall blocks are one of the few materials with which you can build a house from scratch almost single-handedly. If you have a lot of free time and not a lot of money, you can try making wall blocks yourself.

You will need

Cement grade M400; - filler (expanded clay, slag, etc.); - SDO additive (saponified wood resin); - sand;

Shovel;

Containers for measuring and stirring the solution;

Block form.

For 1 m³ of expanded clay concrete M75: - cement M400 – 250 kg; - expanded clay – 1.05 m³; - sand – 0.2 m³; - wood saponified resin (WRS) – 0.3 kg;

Water – 0.25-0.35 m³.

For 1 m³ of slag concrete M50: - cement M400 – 200 kg; - slag – 0.7 m³; - sand – 0.25 m³; - lime – 50 kg;

Water 0.1–0.15 m³.

Instructions

1 Select the type of block that suits you best

Wall blocks can be made on the basis of various binding components and fillers. Cement is used as the main component. The choice of fillers is much wider. This can be sand, expanded clay, slag, sawdust, etc. Depending on the type of fillers and their ratio with each other, it is possible to obtain a material that differs in strength, thermal conductivity, moisture resistance, and frost resistance. When making wall blocks with your own hands, slag or expanded clay are most often chosen as fillers. Slag and expanded clay blocks have good performance properties - high thermal insulation combined with sufficient strength - and are at the same time relatively cheap. Slag can often be purchased for free or at a meager price.

2 Decide on the block brand

The strength of a building block, characterized by its grade, is determined by the relative content of cement and fillers. By increasing the amount of cement and sand relative to expanded clay and slag, the strength of the block can be increased. However, it should be remembered that at the same time its thermal insulation properties decrease. Between strength and thermal insulation it is necessary to find golden mean.

3 Decide on the block size

The most common standard size is 390x190x188 mm. However, you can make blocks of any size. Before settling on a specific size, you should determine the thickness of the wall of the building for which the blocks are intended, and then, based on it, select the size of the block.

4 Make, buy or rent a block making machine

You can do without a machine by making the simplest collapsible forms (matrices) from sheet metal, wood or plastic. However, in this case, a large number of molds will be required, since the poured blocks will have to remain in the molds for some time to harden. Cinder block machines, thanks to the presence of a vibrator, allow you to unload the block immediately after molding. If you plan to make a large number of blocks, it is better to do this using a machine. The time gain will be huge.

5 Prepare the working mixture

Measure out all the components (cement, sand, slag or expanded clay, lime) in the required proportions and mix them thoroughly in the mixing container. After this, add water with SDO dissolved in it. Depending on the moisture content of the fillers, different amounts of water may be required, so add it gradually, stirring and assessing the mobility of the mixture. Don't add too much water. The stiffer (less mobile) the mixture, the stronger the blocks.

6 Fill the mold with the mixture

If you are using manual collapsible molds, when pouring, thoroughly compact the mixture in the mold with a trowel or shovel until the surface is smooth and covered with a thin layer of water. When using a cinder block machine to compact the mixture, it is enough to turn on the vibrator for a few seconds (5-8).

7 While the blocks are curing, keep their surfaces moist. This can be achieved by regularly watering the blocks or covering them with plastic film. The blocks should harden while in the shade.

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How to make building blocks with your own hands.

The construction of a house from blocks is progressing faster than from bricks. You can purchase them freely, but many people make building blocks with their own hands.

Blocks in construction are used not only for building walls. The use of building blocks for the foundation also speeds it up. Of course, these blocks must be very dense: 1.5 tons per 1 cubic m. Making blocks with your own hands, if you look at it, is not such an extremely difficult matter.

Where to begin?

And the beginning of everything is making molds.

Forms

There are molds for building blocks with standard sizes on sale. And at home you can make building blocks in sizes that suit you. We take sheet metal, cut out the required shape from it and weld the shape. Molds are also made from wood; they are good for adobe blocks. There is no need for a bottom here. But the handles on the sides will come in handy, it will be more convenient to work with them.

Material for homemade building blocks

What's great about DIY building blocks is that they use material that you already have or can easily purchase.

Basically, blocks are made from cement with various fillers, but craftsmen, like manufacturers, sometimes do without it. Depending on the selected material, it is possible to produce homemade building blocks of the following types:

• slag concrete;
• blocks based liquid glass;
• adobe;
• chip concrete or wood concrete.

How the filler is used:

• ash;
• slag;
• dropout;
• crushed stone;
• gypsum;
• perlite;
• expanded clay;
• sawdust;
• straw;
• broken brick and other.

Blocks without cement

Making building blocks using this technology is not available to everyone, because the mixture contains liquid glass. Unless you negotiate with the nearest concrete products plant and buy the main component there. The mixture will consist of:

• two dozen parts of river sand;
• one and a half dozen parts of liquid glass;
• 4 parts chalk;
• 3 parts slaked lime;
• 2 parts kaolin.

Manufacturing process

• First the sand is sifted;
• chalk is added;
• everything mixes well;
• slaked lime is introduced;
• kaolin or brick crushed to a powder state;
• liquid glass.

The starting raw material should be homogeneous and dough-like. Before pouring this dough-like mass, wet the inside of the molds. If you wish, you can add color to the building blocks. To do this add:

• chalk of any color;
• red brick ground into powder.

Fillers are added to such blocks: slag, expanded clay, shavings. Their strength is high - they are much stronger than cement ones.

Expanded clay concrete blocks

Expanded clay concrete blocks are one of the types of cinder blocks, where expanded clay serves as a filler.

Compound

• cement - 1 part;
• expanded clay - 5 parts;
• sand - 3 parts;
• water - about one part.

Technology

The technology for manufacturing expanded clay concrete building blocks is generally the same as any other:

• the starting material is placed in pre-lubricated molds;
• compacted;
• the form is removed after 10 minutes;
• the product remains in place;
• after 12 hours it is transferred to a place protected from precipitation and direct rays of the sun.
• in warm weather the blocks will become hard in a little less than a month.

If you plan to make thick walls (about 0.5 m), then blocks with voids are better. To do this, wooden inserts are inserted into the mold: round or square. And so that they can be easily removed, before inserting, wrap them in roofing iron.

Advantages

• light weight;
• frost resistance;
• breathability;
• moisture resistance;
• strength;
• low cost.

A house made from expanded clay concrete blocks is built faster than from brick; less mortar is needed for masonry.

Adobe blocks

Components

For this type of block, the material is literally under your feet. All you need is:

• clay;
• straw;
• river sand;
• water.

Features of selection

In order for the building blocks to have characteristics that meet all the requirements, you need to know something about the features of selecting components:

1. It is better to prepare the clay in the fall, cover it with film and let it overwinter - this will improve its quality.
2. First sift the sand, freeing it from impurities.
3. Straw can be taken from the field where wheat, rye or barley has just been harvested. If the straw remains from the harvest of the previous year, then the quality will not be the same - after all, after lying there, it begins to rot.

• clay - 1 cubic meter m;
• straw - 20 kg;
• sand - 25%.

In order not to spoil the entire batch of blocks, you need to make a small experimental batch. So we do this:

• we combine all the components in small quantities and write down the proportions;
• make a batch;
• form a ball;
• leave in the sun to dry for about 1 hour;
• we throw it on the ground at a height of one and a half meters.

If all components are selected in the required proportions, then the ball will remain intact. Did you add more sand than you should? It will collapse or crack. Is there enough sand? The ball will blur. This is how we select the most optimal option in a practical way.

Preparation

To prepare the mixture for several dozen blocks at once, you need to make a hole in the ground: round with a diameter of about 2.5 m or rectangular 1.5x2.5 with a depth of half a meter. Line its bottom with polyethylene. Although some ready-made container will do: a trough or old bath. Then everything is done as it was done in the old days: we dress Wellingtons from rubber and walk around, mixing everything until smooth.

Manufacturing

• While the batch is in the manufacturing stage, we are preparing a platform for the products: we select a flat, sunny place;
• We bring the mixture in buckets;
• fill out forms;
• compact;
• remove excess by running a board along the upper edges of the mold;
• remove the form.

The finished blocks should dry. This usually takes several days. It is important that they are not exposed to rain. Then they are transferred to a shelter and dried further. They will be completely ready in 10 days.

A house made of adobe blocks turns out to be very warm and comfortable. In addition, this building material is environmentally friendly, durable, and fireproof. It is used for buildings no higher than 2 floors.

Sawdust concrete blocks (arobolite)

The technology for making sawdust concrete blocks is similar to making adobe blocks, but the components do not need to be mined, but purchased.

Components

Before you start making, you need to purchase:

• cement - M300 or higher;
• sand - fraction no larger than 1.8 microns;
• not slaked lime;
• sawdust (coniferous wood).

Preparing the Components

• sift through sawdust;
• mix dry cement and sand;
• add lime here and mix again;
• add sawdust and repeat the mixing procedure;
• pour in water;
• In order for the components to adhere well to each other, add calcium chloride or alumina sulfate;
• we control the quality of the mixture.

To control quality, we roll the ball and squeeze it in our palms. If water flows, there is too much of it in the mixture; if the ball crumbles, there is too much sawdust or sand.

Let's start production

• Line the form with plastic wrap;
• add the mixture;
• we ram;
• Without removing from the mold, leave to harden for 5 days;
• remove from the mold and dry further.

The drying process will take a long time - from 1.5 to 3 months: it all depends on the mass of the block.

Equipment

If the construction is large-scale, then it may make sense to spend money on equipment for building blocks. For example: there is a mini-machine for sale for the production of wood concrete RPB-1500 BL. Its productivity is 1 sawdust block with dimensions 19 x 19 x 39 cm per minute. Produced by a Russian manufacturer - INTEK company.

Vibrating tables are widely used in the manufacture of building blocks. They solve the problem of compacting mixtures. The vibrating table consists of:

• movable table;
• engine;
• control panels;
• sometimes a transformer is included in the kit.

The compaction of the working mixture occurs under the influence of vibration created by a vibration motor.

Duty cycle

• place the mold on the movable table;
• place half or completely dry mixture into the mold;
• start the engine;
• drying.

How to choose?

There are 3 types of vibrating plates capable of compacting material by weight:

• up to 75 kg;
• from 75 to 160 kg;
• from 160 kg.

Based on these indicators, you should select the optimal vibrating table option for yourself.

Manufacturers

They are produced by:

• Russian company VPK;
• LLC "Stroymash";
• plant "Red Poppy" in Yaroslavl and others.

We supply vibrating tables and foreign manufacturers:

• Spain - Enar and Hervisa;
• Germany - Wacker;
• Italy - Batmatic;
• France - Paclite.

The modern building materials market offers a large assortment wall blocks. But not everyone knows that reducing the cost of building a private house, cottage, garage or utility room is quite real. Instead of buying bricks or cinder blocks, it’s enough to start making them yourself. To do this, you need to use a machine for producing blocks, and if the budget does not allow, you need to make a vibration pressing machine yourself.

Inexpensive factory models of vibrating machines are not characterized by high productivity, but for private use this is not required. True, buy a machine for construction small house, where about a thousand blocks will be required standard size, – will not be entirely profitable. Therefore, as an option, you can consider renting equipment for a certain period. This will be enough to procure building materials for future use.

Factory machine for making building blocks with your own hands

Types of building blocks

Brick is still the main material in the construction of high-rise buildings, but for low-rise construction it is cheaper to use other building materials. If you exclude wood, which is now expensive, the choice will still be varied. Modern wall materials are made from:

• foam concrete;
• slag concrete;
• aerated concrete;
• expanded clay concrete.

Block characteristics comparison table

As a filler for cinder blocks, a variety of and sometimes exotic materials are used, which are industrial waste: screenings, broken glass and bricks, sawdust, wood chips.

Let's first consider how expanded clay blocks and cinder blocks are made independently, as the most budget-friendly among all the above building materials.

DIY expanded clay blocks

If there are no problems with expanded clay in your region, you can consider yourself lucky: expanded clay concrete, despite its cheapness, is rarely found on sale, but this building material is characterized by a whole spectrum positive properties. To make expanded clay blocks you will need:

• expanded clay itself;
• cement;
• sand;
• water.

The main material for creating the mixture will be fine expanded clay

When mixing the solution, it is important to adhere to a certain sequence: expanded clay is added to the water, then cement, and finally sand. The proportions of the solution are as follows: for nine liters of water, use 54 kg of expanded clay, 9 kg of cement and 27 kg of sand. The result will be a mixture weighing about 100 kilograms, with the yield of finished blocks in the amount of 9-10 pieces.

Manufacturing technology of expanded clay concrete blocks

If it is not possible to use a specialized machine (such equipment is not cheap), expanded clay concrete can be produced on a non-industrial scale using special matrices. You will also need an appropriate container for the solution, a flat area and formwork made of wood or metal in the shape of the letter “E”.

A concrete mixer, a standard piece of equipment in a builder’s arsenal, will help reduce time losses and reduce labor costs. If there is a shortage of time, the problem can be solved by using a vibrating machine; a simple model of such a machine can be made independently.

To do this, it is enough to attach a low-power, but high-speed electric motor to the mold, which is converted into a full-fledged vibrator using an eccentric. The oscillations of the matrix cause the mixture to be distributed in the mold as densely and evenly as possible, improving strength characteristics finished products. Factory-made brick presses have maximum productivity: professional machines are equipped with additional equipment that allows you to automate the process, eliminating heavy manual labor. But such vibropressing machines also cost a lot.

Do-it-yourself cinder block production

Expanded clay is beautiful and inexpensive material for making building blocks, but an even more economical way to conduct construction is to use cinder blocks. Having comparable sound and heat insulation characteristics, slag concrete is made from materials whose cost is an order of magnitude lower.

The industry is not interested in producing cinder block building materials - it is more economically profitable to produce expensive analogues (building blocks made of foam concrete, aerated concrete, brick). But special equipment for forming cinder concrete blocks is on sale, and quite a lot. The range of prices for such vibrating machines is huge: from simple models with a static matrix, which can easily be assembled in garage conditions from scrap materials to fully automated lines.

Cinder block: manufacturing technology

A modern cinder block has dimensions of 188x190x390 mm, a solid building material is characterized by sufficient strength for arranging foundations and multi-story construction, hollow ones are used in all other cases. The voids can be round, rectangular or square, the number varies from one to 8-10 voids, the voidness rate ranges from 25-50%. Almost equal in strength to monolithic products, hollow cinder blocks allow you to save expensive cement by almost half.

For quick and high-quality mixing of the mixture, it is advisable to use a construction concrete mixer

The following can be used as filler in production:

• coal slag;
• fine gravel;
• crushed stone screening;
• sand;
• brick waste;
• broken glass;
• ash;
• perlite;
• gypsum;
• sawdust;
• wood chips.

When mixing the solution, the proportions will depend on the composition of the filler. The main condition is that the finished solution does not spread. Cement in the production of slag concrete is used at least grade M400 to improve performance properties finished product, plasticizers can be added to the solution.

Portable machine for making cinder blocks with your own hands

A guideline for self-production of a solution for cinder blocks can be the factory recipe: for seven parts of blast furnace slag - two parts of coarse sand, one and a half parts of cement and up to three parts of water. The way to check that the consistency of the solution meets the requirements is simple: throw a handful on the ground, it should crumble. If you collect the solution and squeeze it in your fist, it should return to the shape of a ball.

It is not necessary to focus on standard dimensions: making blocks with your own hands is an individual process, and many prefer to set up production using multiple mold sizes (for example, 200x200x400 mm), which simplifies interfacing with other structural elements buildings under construction.

Preparation of cinder blocks without special equipment

If you have free time and are unable to make a simple vibrating machine for the production of slag concrete, it is advisable to use a mold with boards or sheet metal as the walls and bottom. It is preferable to use one matrix for the manufacture of several blocks of slag concrete, at least in order to save materials. To create voids in the form for pouring the solution, you can use bottles, scraps metal pipes, wooden cylinders or bars.

Manual machine for making cinder blocks and expanded clay blocks at home

The procedure itself is simple: prepare the solution, pour cinder concrete into the molds, level it, removing excess. After a day, the blocks can be carefully removed by laying them out to dry. horizontal surface. To protect against cracking and getting wet finished material Cover cinder block stacks with plastic sheeting while drying.

You can use homemade cinder blocks a month after they are made. This point should be taken into account and the production of building materials should be started in advance.

Making a vibratory pressing machine

Adding a slag concrete vibrator to the above-described production scheme provides the opportunity to significantly improve the quality of products and at the same time speed up the process.

It is not difficult to assemble such a machine; if you follow all the recommendations, this equipment will work no worse than its factory counterparts. The simplest version of a vibrocompression machine involves the use of a homemade matrix, a vibrator and a hand press. To reduce physical activity hand press can be improved by using a lever system.

Drawing of a homemade machine with a vibration motor for making cinder blocks and expanded clay blocks

A set of tools and materials necessary for the manufacture of a vibration machine with a metal mold:

• welding machine;
• Bulgarian,
• a set of keys;
• vice;
• sheet metal with a thickness of at least 3 mm;
• pipes for creating voids with a diameter of 8-10 mm;
• channels, strips of metal;
• low-power electric motor (up to 1 kW);
• connecting elements (bolts, nuts, cotter pins).

The main element of a machine for making blocks with your own hands is a matrix, the dimensions and shape of which are selected based on production needs.

The sequence of actions when making a homemade vibrating machine:

• Bulgarian from sheet material cut out the walls of the matrix. If the mold is intended for the manufacture of several block products, we provide for the presence of the corresponding number of partitions in the matrix.
• We cut off the required number of blanks from the pipe (at the rate of 3 pieces per brick), the height of which should be 3-5 mm less than the height of the matrix. Pipe taper is achieved using next appointment: cut the pipe in half and crimp the workpiece in a vice (for thick-walled pipes you can use a lathe).

Drawing for the manufacture of a machine with lightweight extrusion of building blocks

• Each pipe section is welded tightly on both sides.
• We weld the plates to the pipes, connecting them together. For fastening to walls, it is better to provide a removable connection, which will allow, if necessary, to remove the limiters for the production of monolithic cinder blocks.
• Using welding, we attach bolts for attaching the electric motor to the long outer wall.
• We weld a metal apron on top of the form.
• We make a press in the form of a thick-walled plate, provide for the presence of holes with a diameter slightly larger than the smaller diameter of the limiter pipes (so that the press enters the matrix at a distance of no more than 50 mm).
• We weld the handles to the press.
• We install the motor. We weld an eccentric onto the electric motor shaft (ordinary bolts are suitable as material for the eccentric; they are welded parallel to the shaft and leave room for screwing on the nuts, which will allow you to adjust the amplitude of vibrations).
• We thoroughly clean the device, polish the surfaces, paint homemade unit for blocks.

Making cinder blocks

It is advisable to prepare the solution using a concrete mixer: the presence of coarse fillers in the solution makes it difficult to obtain a high-quality mixture manually. Before pouring slag concrete into the matrix, the wall surfaces must be lubricated with machine oil or a similar product. This will prevent the solution from sticking to the walls of the matrix.

Pour the mixture into the mold, apply pressure with a press and at the same time turn on the vibrator. After 10-20 seconds, the solution will thicken and shrink, so add the mixture to the matrix and repeat the procedure, without turning off the vibrator until the pressure plate drops to the level of the limiters.

Depending on weather conditions, cinder blocks can be removed from the mold either the next day or three days later. Next, the material is laid out to dry naturally for a month.

As you can see, the main difficulty in the production of wall materials is to make a machine for cinder blocks with your own hands, observing the required precautions (pinning threaded connections, grounding of the electrical part of the installation). You should not expect super-performance from such a unit, but some improvement in the design will facilitate the process of producing cinder blocks: a simple lever system can be provided to press down the press. By welding wheels to the supporting frame, you can get a mobile version of the device (the so-called “layer”).

The purchase of factory machines equipped with additional equipment for automating the production of slag concrete products will provide the opportunity to organize your own small business. On this professional equipment It is possible to produce not only block products. Matrices of interchangeable shape will allow you to form paving slabs, curbs, decorative elements– essentially any analogues of concrete products.

Current employment: For the last 4 years he has been acting as an independent consultant in a number of construction companies.

Cinder block is one of the most popular building materials. It is made using the vibrocompression method from concrete mortar. A wide variety of buildings are erected from cinder blocks - from sheds and garages to residential buildings.

Are you planning to build something out of cinder blocks? Make them yourself! There is nothing complicated in the production technology of these concrete blocks. You need to thoroughly understand the operating procedure, find out the basic requirements and follow the recipe.

The dimensions of the cinder block are standardized - 188 x 190 x 390 mm. Each block has holes. Usually there are 3 of them. For the manufacture of building elements, a mixture of cement of at least M400 grade, blast furnace slag and coarse sand is used. Additional fillers and plasticizers are often added.

You can make blocks either manually using molds or using equipment with a vibrocompression function.

On average, one bag of cement is enough to make 36 blocks. The savings are obvious.

The cinder block must have the correct geometry. Even small irregularities will lead to deterioration in the quality of the masonry. To get even blocks, the molds need to be filled not just to the brim, but with a slight mound, because... During vibration, the concrete will shake slightly and settle.

Prices for different types of building blocks

Building blocks

How to prepare the solution?

Some kind of universal composition There is no solution for making cinder blocks - each master has his own unique recipe. In general, you need to focus on the characteristics of the slag composition.

Components	Volume, l, per block	Compressive strength of the dried block, kg/cm2	Frost resistance of the finished block, cycles	Thermal conductivity coefficient of finished cinder block
Slag up to 8 mm	10	30-40	30	0.35-0,4
Sand up to 3 mm	1,8
Cement	2,75
Water	1,5

There is a standard “factory” recipe, you can use it as a guide. The proportions are as follows:

• slag – 7 parts;
• sand – 2 parts;
• cement – ​​1.5 parts;
• water – 1.5-3 parts. More about the definition required quantity water will be discussed later.

Helpful advice! Previously, standard dimensions of slag concrete blocks were given. However, for private buildings it is more convenient to use products with dimensions of 400x200x200 mm.

In addition to slag, the composition of such blocks can include ash, sawdust, gypsum, broken bricks, coal combustion products, gravel and other similar materials.

Pay special attention to determining the required volume of water. It must be added so much so that the products do not spread after formation.

You can do a simple test. Drop a handful of solution onto the ground or other surface. If it crumbled, but when squeezed back with your hands, it came back together into a single mass - the consistency is optimal.

Making cinder blocks by hand

If the planned construction is not too large-scale, the blocks can be made without a brick press.

Making a mold

We assemble a mold measuring 40x20x20 cm. If you wish, you can adjust the dimensions at your discretion. To make the mold we use metal sheets or wooden boards.

The design is extremely simple: bottom and side walls. We fasten the walls taking into account the selected width and length of the block. The height of the edges of the form must also correspond to the planned height of the building elements.

Helpful advice! You can make molds with cells to make 4-6 blocks at a time - very convenient. You just need to increase the length and width of the outer edges and install partitions between them.

Prepare empty glass bottles. You will use them to create voids in the blocks.

Filling the blocks

Pour the solution evenly into the mold to the brim.

Place the bottles with the neck up in the poured mixture. We level the surface of the fill, removing excess mortar.

We wait about 5 hours and take out the bottles. We leave the cinder blocks in the molds for a day, after which we carefully remove them and lay them out in stacks on a horizontal surface.

We leave the blocks to dry for a month. Only after the specified time can the material be used for construction.

Helpful advice! Cover the blocks with plastic wrap while drying. It will protect the products from cracking during the heat and prevent them from getting wet in case of rain.

Making cinder blocks on a machine

The machine allows you to significantly increase work productivity. The equipment has a fairly simple design.

Assembling the machine

The main element of a homemade vibratory compacting machine is a mold (matrix) for slag concrete mortar. By its design, this form is a metal box with internal elements in the form of voids. The void stoppers can also be removable.

Set for work includes the following materials and tools:

First step. We make a mold according to the size of the future blocks. We cut out the side faces of the matrix from sheet steel. We will make a form for 2 blocks at once. To do this, we cut out the inner central partition from steel and fix it in the box.

Second step.

We determine the height of the elements to decorate the voids.

Important! In accordance with the technology, the height of the voids should be such that the bottom wall has a thickness of 3 cm.

Third step.

We cut 6 pieces of pipe along the length of the limiting cylinders to form voids.

Fourth step. We give the pipes a conical shape. To do this, we cut each piece of pipe longitudinally to the middle, compress it with a vice and connect it using a welding machine. each cone on both edges. Fifth step.

We connect the stops in a row along the long edge of the cinder block. Along the edges of the row we add a 3-centimeter thick plate with holes for fastening with eyes.

Sixth step.

We make a cut in the middle of each such compartment. We weld lugs on the back side of the form. They will allow temporary fastening of elements to create voids. Very

convenient solution

– it will be possible to remove the cylinders and make monolithic blocks.

Compact cinder block machine (press on top)

Seventh step.

On the outside of one of the transverse walls we weld 4 bolts for the mounting holes of the vibration motor.

Eighth step.

Using welding, we attach an apron on the loading side and blades along the edges.

Ninth step.

We prepare all structural elements for painting - we clean them and thoroughly polish them.

Recommendations for preparing the solution are given above. You can use the standard recipe or modify it at your discretion. The main thing is to obtain optimal viscosity. It can be determined “by eye” - the lump of mixture should hold its shape steadily.

Before loading the mixture, lubricate the contact metal surfaces with oil. Thanks to this, the solution will not stick to the iron.

Laying it down ready mixture into the matrix and begin pressing.

Place the filled forms on a vibrating plate and let it compact the solution for 5-15 seconds. After the specified time, add more solution to the mold, because previously loaded will inevitably settle.

We repeat the process, only this time we do not turn off the vibrating plate until the clamp reaches the limiters. We remove the mold until the machine stops.

We give the blocks 1-3 days for initial drying, carefully remove them from the blocks, lay them out on a flat horizontal surface and cover them with plastic wrap. The material can be used for its intended purpose no earlier than after a month.

Happy work!

Video - Making cinder blocks with your own hands

The building materials market presents different kinds concrete blocks, including slag concrete. They are distinguished by their low weight and increased dimensions, which makes it possible to build a building at an accelerated pace. Wanting to reduce the estimated cost of work, many developers do not purchase block building materials, but make them themselves using a machine for producing blocks. Not always industrial models vibrating machines are distinguished by their quality and performance. It is easy to make a homemade unit, guided by the recommendations given.

Cinder blocks

Types of concrete blocks for construction

Despite the fact that brick is often used in the construction industry for the construction of buildings, it is difficult for it to compete with block building materials made from concrete. To build a house, it’s easy to choose blocks that differ:

• increased dimensions;
• reduced weight;
• filler used;
• production technology.

The manufacturing technology of block products involves the use of the following filler:

• expanded clay;
• sawdust;
• slags;
• brick fighting;
• dropouts.

Expanded clay blocks

Wall materials block type are divided into the following types:

• expanded clay concrete blocks;
• wood concrete products;
• foam concrete building materials;
• aerated concrete products;
• cinder blocks.

The use of cinder blocks, the cost of which is lower than other block building materials, reduces the cost of building construction. Making cinder blocks on your own is easy to do at home, using a machine for producing blocks. Let's consider the characteristics of cinder block building materials.

Cinder concrete blocks - properties of building materials

Cinder concrete blocks are a building material produced using vibration pressing technology. Along with cement and sand, the following types of filler are used for production:

• slags, which are waste from metallurgical enterprises;
• granite and crushed stone screenings;
• brick waste;
• river crushed stone;
• expanded clay particles.

Brick waste is one of the components for slag concrete blocks

The production of cinder block products can be carried out in various ways:

• using industrial technology, which involves heat treatment and steaming;
• at home using a homemade block machine.

By producing cinder blocks on a block making machine, you can obtain products that have the following advantages:

• increased thermal insulation characteristics. Slag concrete has low thermal conductivity and retains heat well;
• increased dimensions. They allow you to quickly build a cinder concrete building, outbuilding or garage with your own hands;
• resistance to microorganisms and damage by rodents. This is ensured by the filler used and the structure of the cinder block mass;
• reduced cost. A homemade cinder block is cheaper than, for example, a foam block used for construction purchased in a retail chain.

In addition, slag concrete material is fireproof, easy to process and dampens external noise.

Along with its advantages, slag concrete has a number of disadvantages:

• limited service life. The durability of a slag concrete structure does not exceed two and a half decades;
• reduced strength properties. Only one-story and two-story buildings are erected from cinder concrete;
• cracks when sheared. During the shrinkage of the box, cracks do not occur along the seams, but directly along the blocks.

Cinder concrete has low thermal conductivity and retains heat well

Cinder concrete also has an unpresentable appearance, needs exterior finishing. In addition, cinder concrete cannot be used for foundation construction.

Despite the weaknesses of the material, it is preferred in situations where it is necessary to quickly construct a small building or outbuilding at minimal cost.

Which is the best block machine to use?

Developers who decide to independently produce cinder blocks for the construction of walls are faced with the question of choosing equipment. It is not always possible to rent a machine for the production of building blocks, especially in small towns. Many people decide to make equipment on their own. Depending on your financial capabilities, you can choose the following options:

• the simplest design that allows you to produce wall blocks at home at minimal cost;
• a modernized version of the unit, equipped with a compaction device and additional mechanisms.

It is difficult to give a definite answer which machine is preferable to use for the production of blocks. It all depends on the number of blocks that need to be produced and financing opportunities. Let's look at the features of each unit.

Simplified block machine

To make cinder blocks on your own in a reduced quantity, it is not necessary to make a mechanized unit, use a vibrator, or additional mechanisms. The manufacturing process using simplified technology can be carried out in special forms.

Simplified block machine

Procedure:

• Assemble the molds and coat them inner surface used oil.
• Pour cinder block mixture into collapsible molds.
• Leave for 3-4 hours until the solution hardens.
• Disassemble the containers and carefully remove the blocks.
• Allow to dry indoors.

If it is necessary to produce hollow products, it is advisable to use ordinary drink bottles to form cavities. A simplified machine for producing blocks, which is a container required size made of wood or steel, can be made at a minimal cost.

Modernized machine for the production of building blocks

With an increased need for cinder blocks for the construction of a large building, you can make a more complex machine for producing blocks, equipped with special devices:

• vibration mechanism. An electric motor is used as a vibration motor, with an eccentric located on the drive shaft. The drive power depends on the size of the mold, the mass of the slag concrete solution and is 0.5–1.5 kW. Under the influence of vibration, the slag concrete mass is compacted, the material is evenly distributed throughout the entire space of the mold, and air inclusions are removed. As a result of compaction, the specific gravity and strength of cinder block products;
• lifting device. It is designed for accelerated extraction of finished products from molding containers. There are many constructive solutions, allowing you to speed up and facilitate the removal of blocks. In the most simple version It is enough to weld handles of any shape to the molding container, by pulling which you can remove the hardened block. Using ready-made drawings, you can independently assemble a lever mechanism from scrap materials.

Modernized machine for the production of building blocks

The shape used in this unit must correspond to the size of the cinder block that is planned to be made. In most cases, products are manufactured of standard dimensions - 0.4x0.2x0.2 m. The molding container must have a height increased by 4m5 cm so that the molded block after compaction has the required dimensions. To simulate cavities, pipe scraps of the required diameter can be welded to the bottom of the container.

We make a machine for blocks with our own hands - sequence of actions

To perform work on assembling the vibration compactor, it is necessary to prepare. The following materials and tools will be required:

• steel sheets 2.5–3 mm thick;
• metal pipe with an outer diameter of 7.5 m 8.5 cm;
• electric motor with a power of up to one kilowatt;
• apparatus for electric welding with electrodes;
• grinder complete with cutting wheel for metal;
• locksmith tool.

Before production begins, you should prepare drawings and understand the design of the machine for producing blocks. It is necessary to decide on the dimensions of the blocks that will be made - the size of the mold depends on this. It can be welded to fit standard products or made in larger sizes.

Drawing of a cinder block machine

When everything is prepared, we make a machine for the production of block products, observing the sequence of operations:

• Cut from steel sheet blanks rectangular shape for welding a molding container of the required size.
• Tack them with electric welding and assemble the side edging of the molding box for pouring the cinder block mixture.
• Check the correct tack when equal to length diagonals, finally weld the mold elements.
• Cut tubular blanks the length of which is equal to the height of the mold and make diametrically spaced cuts on the side surface.
• Provide a conical shape for the tubular elements and weld them to the bottom sheet of the future molding box.
• Weld the crossbar to the cones, install plugs on the ends with a smaller size.
• Produce final assembly molding box, welding the bottom with inserts to the edging.
• Secure with opposite sides two handles for lifting and transporting the molding container.
• Install the threaded elements for fastening the vibration motor and screw the vibration motor with the balancing weight.
• Cut out the top cover that matches the dimensions of the inner cavity of the box and has holes for pipes.
• Apply anti-corrosion coating, assemble the unit and check its operation.

The use of a group container of increased size allows to increase the productivity of the vibropressing machine.

Drawing. Vibroforming machine

Self-production of slag concrete blocks - recipe

Do-it-yourself cinder block making machine

To make cinder blocks using self-made equipment, you need to prepare the following materials:

• Portland cement marked M400 and higher;
• screenings or small crushed stone;
• slag or ash from coal combustion;
• sifted sand;
• water.

Special plasticizers are also used to increase the strength of the cinder block mass and accelerate hardening. To prepare an increased volume of slag concrete mixture, a concrete mixer will be required.

The following slag concrete compositions are used:

• mix Portland cement with slag in a ratio of 1.5:8. Gradually dilute the mixture with water, the amount of which should not exceed half the volume of cement;
• mix crushed stone screening, cement and coal ash in a ratio of 4:1:4. Add water to the concrete mixer until the solution becomes plastic.

Possible formulations include the use of granulated slag, plasticizers, quartz sand and broken bricks.

Portland cement marked M400

We manufacture products ourselves using a block production machine

Using a self-made machine for blocks, carry out work according to the following algorithm:

• Place the equipment on level ground.
• Connect electrical power.
• Prepare cinder block mortar.
• Pour the prepared mixture into the mold.
• Turn on the vibration motor for 2-3 minutes.
• Add cinder mixture to the top level.
• Place the protective cover and turn on the vibrator.

Compact the array. The cover should come into contact with the stops located in accordance with the height of the block. Then remove the box and let the molded block sit until the mass sets. After careful removal, dry the cinder concrete products in a closed and ventilated area.

Let's sum it up

When planning the construction of a building made of cinder concrete, you can reduce costs by independently making a machine for producing blocks. It is important to use verified documentation for the manufacture of the unit and carefully understand the design of the vibration compaction device. To obtain high-quality products, study the recipe and also understand the technology.