Making blocks with your own hands. Various number of cells in the form. How to make a building block

In any building materials store or market, you can purchase special blocks used to construct a building. However, it is not at all necessary to buy a building stone; 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 \u200b\u200bpremises due to the thickness of the wall blocks without reducing the quality of heat transfer. That is why wall blocks are confidently replacing the usual materials for construction. Wall blocks will help you to obtain high-quality building material at low cost, hence - high-quality construction. A house built of wall stones will be comfortable and warm, and will also save a lot. 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 summer and warm in winter. Therefore, the cost of heating is one third less than in houses built of bricks. Also, a positive property of wall blocks is that the walls created from them are much lighter than the walls built from bricks, thus creating less stress 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, your costs for the delivery of wall blocks are reduced exponentially. Due to their weight (wall blocks are much lighter than, for example, bricks), the volumes of the delivered material will be larger.
So, why should you choose wall blocks for building your home, the pros:

guarantee warmth, comfort, frost-resistant and fireproof

increase the usable area of \u200b\u200bthe room due to their small thickness

do not reduce the quality of heat transfer in the room

installed in a short amount of time

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

DIY blocks

I chose the dimensions of the blocks 510x250x215 mm (volume of 14 bricks). I welded 11 molds from sheet metal waste without bottoms. I welded 2 handles on the sides. I spread roofing material right on the ground, put the form. To prevent the mixture from sticking to the walls of the mold, I wipe them from the inside with a cloth moistened with used oil or diesel fuel. I fall asleep there hard expanded clay concrete. I don't ram very hard. I remove the first form after filling the 11th - this is about 10-12 minutes. The blocks stand in place for 12 hours. Then I move them under the canopy. They harden at above-zero temperature within 24 days. The canopy is made of roofing material, tarpaulin or plastic wrap. Under it, the blocks will be protected from rain and sun.

DIY blocks I tried to make blocks with voids. I inserted two wooden round timber, turned into a cone and wrapped in roofing iron. 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 ones - filled. Conventionally, walls 215 mm thick without voids can be called cold, 250 mm - semi-warm, 510 mm with voids - warm.

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

Blocks with my own hands I tried to make blocks using a vibrator, but the solution goes to the bottom of the mold and 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 1/3 higher - this is for the shrinkage of concrete during vibration.

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

Thus, I made 500 blocks. They were enough for laying a warm barn measuring 6.2x4 m and an extension to it - a cold barn.

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

Building blocks yourself

The standard size building block is very easy to use. Laying is quite fast, 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 form for blocks is from a cement-bonded particleboard of at least a centimeter thickness. You can also take sheet metal. Honestly, almost any material is suitable, but when choosing it is important to consider how durable the form will be, whether it will not be saturated with moisture, how convenient it will be to get ready-made building blocks from it, and so on. Above all, one should be guided in the choice of material for forms by logic.
Of course, to make blocks with your own hands in sufficient quantities, one form will be extremely small. It is better to make about five or ten forms at once, which will be quite enough to start. Further, if necessary, the number of forms can be increased.
As for the mortar for self-made blocks, it is recommended to use one of two options.
The first option allows you to make blocks of the so-called "cold concrete". To do this, take a traditional mortar, 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 building sand.
Warm concrete is made 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.
Making building blocks is not a complicated process. The solution is filled in the forms, the excess solution is removed with a trowel and I try to level the upper part of the block. By the way, the forms should be installed on a flat surface so that the solution diverges as evenly as possible under the influence of gravity.
After a few hours, the blocks can be carefully removed from the molds and laid out to fully harden. They harden within 24 hours, after which the self-made blocks are stacked on pallets for storage or taken directly to the construction site.

Building blocks at home

Nowadays, you can buy building blocks at any building market and building materials store. Their assortment is very large today, you just need to make a choice and you will be delivered your order right 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, consider below the basic principles of how to make building blocks yourself at home.

First, you need to decide what size you plan to make the building block. The following size is considered to be the running size today: 400x200x200 mm. Blocks of such geometric parameters are not heavy, they are easy to lay when erecting a wall. With the help of such a block, you can easily make a wall of two types 200 mm thick and 400 mm thicker.

To create a form with the help of which building blocks will be made by hand. We recommend making the form for several blocks at once, this will significantly speed up the work process and the prepared concrete will be better used. You can make construction at home both full-bodied and with cavities. The mortar for the blocks is made using cement and sand, while the proportion must be kept 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 concrete is also called warm). Many people wonder: how to make building blocks yourself so that they do not stick to the form and have a flat and smooth outer surface. To do this, you need to do the following - apply to the walls of the mold with machine oil, and even better by working off.

When pouring building blocks at home, the mold must first be filled to 45-50%, then the concrete must be tamped and the mixture is homogeneous. After that, you can fill the form completely again, ram it, level the top side, remove the remnants of the concrete mixture from the brick form and let it harden. The concrete mixture should be allowed to harden for about 30 minutes. Then you carefully take out the form and you can carry out the next cycle of work. The blocks will completely harden only after 24 hours. Care should be taken to protect the blocks from direct sunlight and rain until completely dry.

So, you already know how to make building blocks yourself at home, now you can safely get to work. And if you make a shape for at least a dozen blocks for one run, then you are quite capable of making 120-150 blocks per day without assistance.

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

Determine in advance the desired dimensions of the future building block. The most common and most popular size: 400x200x200 millimeters. Such a building stone is not too heavy, but the wall thickness can be 200 or 400 mm (this depends on personal preference).
For future building blocks, shapes need to be constructed. It is advisable to use 10 mm thick cement bonded particleboard and sheet metal (2-3 mm). A stone mold can also be made from wood that has been sanded from the inside.

Make the shape for one or more blocks (this will speed up the process of making building stone). Self-made blocks can be hollow or full-bodied (depending on personal preference), which affects the design of the mold.

For “cold concrete”, prepare a mortar for blocks from cement and sand (proportion 1: 4), and for “warm concrete” - from cement, expanded clay and sand in a ratio of 1: 4: 1. Then fill the block mold halfway with the raw material. Tamp the solution (you can use a shovel handle) and only then add the missing "raw material" to the form.

Align the upper surface of the future block with the building rule, that is, remove the excess mortar with this tool. After thirty to forty minutes, carefully remove the block from the mold, and form a new building stone in it.

For complete hardening of the solution, the blocks are carefully transported to a special place protected from the sun and rain. The blocks will completely harden after twenty four hours.

Lightweight wall blocks and their benefits.

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

KERAMZITOBETON.

Features: Expanded clay concrete blocks are made of expanded clay (foamed and fired clay), used as an aggregate with fractions of 5-10 mm, water and cement.
Advantages: In terms of thermal insulation characteristics, it surpasses brick, gas and foam concrete. Resistant to moisture. High strength, frost resistance

GAS CONCRETE

Features: Aerated concrete is obtained by adding a gas generator (aluminum powder) to a mixture of lime, cement, quartz sand. The material gains strength at elevated pressure and high temperature in autoclave furnaces. Aerated concrete is porous both inside and outside, i.e. its porous. The products are manufactured in the factory, so the quality of the products is guaranteed.
Advantages: Greater geometric dimensional accuracy, higher heat and sound insulation, strength.

FOAM CONCRETE

Features: Foam concrete (non-autoclaved aerated concrete) is made from a mixture of water, sand, cement and a foaming agent. It hardens naturally in special shapes. The structure of foam concrete consists of closed bubbles of different sizes. Products can be produced privately, directly on the construction site. Handmade 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 a high accuracy of geometric dimensions, which allows them to be used during installation with adhesive mixtures, and not a conventional masonry mortar. The thickness of the seam from the adhesive mixture is 2-3 mm, and from the masonry mortar - 10-12 mm. This makes it possible to make the wall almost uniform, 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 sound insulation characteristics. Due to the peculiarities of the structure of the material, the walls "breathe". 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.

The common disadvantage of all the materials under consideration is:
Despite the high thermal insulation performance, walls made of these materials need to be insulated. The porosity of the blocks requires mandatory protection of the building walls from atmospheric precipitation. In this case, it is necessary to maintain the vapor permeability of the structure.

Aerated concrete and foam concrete have an additional disadvantage of low bending strength. Every three rows of masonry must be reinforced. A strip monolithic foundation or a monolithic basement is required.

How to make a wall block

Building blocks have many advantages. Among them are the convenience and speed of construction of buildings, the relative cheapness of construction, and others. Wall blocks are one of the few materials that you can use to build a house from scratch almost alone. 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 brand M400;
- filler (expanded clay, slag, etc.);
- additive SDO (saponified wood resin);
- sand;
- a shovel;
- containers for measuring and stirring the solution;
- the form for the block.

For 1 m³ of expanded clay concrete M75:
- cement M400 - 250 kg;
- expanded clay - 1.05 m³;
- sand - 0.2 m³;
- wood saponified resin (SDO) - 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 Choose the type of block that suits you best

Wall blocks can be made on the basis of various binders and fillers. Cement is used as the main component. The choice of fillers is much wider. It can be sand, expanded clay, slag, sawdust, etc. Depending on the type of fillers and their relationship to each other, you can get a material that differs in strength, thermal conductivity, moisture resistance, 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 operational properties - high thermal insulation combined with sufficient strength - and at the same time are relatively cheap. Slag can often be purchased for free or at a very low price.

2 Decide on the brand of the block

The strength of a building block, characterized by its brand, is determined by the relative content of cement and fillers. By increasing the amount of cement and sand relative to expanded clay and slag, you can increase the strength of the block. However, it should be remembered that at the same time its thermal insulation properties decrease. It is necessary to find a middle ground between strength and thermal insulation.

3 Decide on the size of the block

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

4 Make, buy or rent a block making machine

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

5 Prepare the working mixture

Measure all the components in the required proportion (cement, sand, slag or expanded clay, lime) and mix them well in the gate container. Then add water with the LMS dissolved in it. Depending on the moisture content of the water fillers, different amounts may be required, so add it gradually, stirring and assessing the fluidity of the mixture. Do not add water. The harder (less mobile) the mixture, the stronger the blocks are.

6 Fill in the form

If you are using manual demountable molds, when pouring, carefully compact the mixture in the mold with a trowel or shovel until the surface is even 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 harden, keep their surfaces moist. This can be achieved by regularly sprinkling water on the blocks or covering them with plastic wrap. Blocks should solidify while in the shade.

People at all times cared about the safety of their home and usually one of the measures taken for this was the construction of a fence. These designs are different, for example, from metal, which is very expensive, and from wood, which requires constant maintenance. Now there is a wonderful option - a fence made of decorative concrete blocks, from which you can build a really reliable and impressive fence. The fence made of them is universal, and the terms of its construction are very short, because it is very easy to work with these materials. In addition, concrete blocks for a fence can have a different texture and color, so you can get an original, unlike any other, fence.
Advantages of block fences
Concrete blocks for a fence are hollow, clay, and they can also be made of artificial stone. The shape of the masonry and its drawing depends on the choice of the customer and the skilled hands of the installers. The surface can be smooth, torn, with a certain pattern.
The decorative block is of very good quality - it is the same on both sides. That is, the fence both outside and inside will have an attractive, beautiful appearance. These structures are not afraid of temperature extremes, humidity, fire resistant. The area they are fencing will be protected from noise and dust.
As for the shortcomings, then, perhaps, this is the need to arrange a foundation when erecting a fence from blocks, as well as a rather laborious process of erecting the fence itself.
Features:
Fence concrete blocks are suitable for building a fence around a cottage or summer cottage. These modern materials are small concrete slabs rather than monumental boulders. Notches, holes can be applied to them, so they are smooth. The blocks can mimic cobblestone or brickwork. Although the thickness of the products can be quite small, they still have an excellent strength factor.
Installation
Before you start building the fence, you need to mark the site. First, mark the lines along which the strip foundation will be laid. It freezes for about a day, but before this happens, reinforcement must be inserted into it. Concrete blocks for the fence will then be strung on its vertical rods. They must be forced into the masonry mortar to ensure maximum structural strength. The cavities of the blocks also need to be filled with a solution. There are seams between the blocks, the width of which is 10-12 millimeters, there should be no voids in them. The excess solution must be immediately removed with a trowel.
Fence design
The wall of the fence may not be straight, but to change the size of the block to the desired one, it is simply laid on soft ground and broken with a hammer. Interesting and original architectural forms can be created from the wreckage.
Fence concrete blocks allow you to create fences of different designs. For this, you can use decorative plaster. It will allow you to create both a perfectly smooth surface and resembling natural stone.
How to make blocks yourself
You can make concrete blocks for the fence yourself, and not buy, then the structure will be much cheaper. To do this, you need to collect from planed boards a shape consisting of walls and a bottom. The thickness of the board must be at least 25 millimeters. The walls should be connected with nails or screws. To secure the walls, you need to take screws with ears. The form is carefully checked for compliance with dimensions, correctness of planes and angles. Blocks can be made perforated or curly. To do this, you need to insert different inserts into the mold: those that have the shape of corners are placed closer to the corners, and the square one is installed in the middle. In order for them to hold, holes must be made in the bottom for the spikes.
Then the solution is prepared. For it, they take grade 250 cement and add sand and gravel aggregate to it. After pouring this composition into the mold, when it partially hardens, the nail is removed from the ears, the liners are pulled out, and then the next block begins to form.

How to make a building block

For construction, you can use not only, but also made by yourself. The most important thing in the manufacture of blocks is to make collapsible forms or buy them, the presence of a concrete mixer and a room with a temperature of 60-70 degrees for drying.
How to make a concrete block
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You will need
- sand
- crushed stone
- cement
- iron for molds
- concrete mixer
Instructions
1To make a mold for blocks, you need to take a sheet of iron, cut it to the required size of the desired shape. Cut grooves on the sides and assemble. You can make the shape and size of concrete blocks at your discretion, but it is better not to make them large - this will simplify and facilitate the construction procedure. 2 For the manufacture of concrete, you will need high grade cement, fine crushed stone, clean river sand. The ratio of the solution is based on 1 part of cement, 3 parts of sand and 3 parts of crushed stone. 3 The mortar must be thoroughly mixed in a concrete mixer. Hand mixing is not suitable for block production. Because their quality depends not only on the solution, but also on the thoroughness of its mixing. 4 Pour the water gradually. The block solution must not be liquid. 5Pour the solution into molds in the drying room. Lubricate the molds with machine oil. 6For warmer concrete blocks, blocks with voids can be made, which will additionally help save mortar and lighten the finished block. For voids, glass bottles can be installed in molds. 7Dry blocks at high temperatures. 8 After two days, you can remove the blocks from the molds and lay them flat on the platform to gain strength. 9 The molds can be refilled with solution. 10 Make a sufficient number of molds so that you do not have downtime due to block drying.

We make a cinder block with our own hands

Table of contents:
Why are cinder blocks good



Concrete blocks are an incredibly popular building material for the construction of residential buildings, as well as auxiliary buildings - garages, sheds, baths, etc. Their hollow variety, in which waste from various "hot" industries or simply slag is used as a filler, has excellent thermal insulation characteristics. Therefore, cinder blocks have found the widest application in household construction, as a reliable, more than once proven insulation.
Why are cinder blocks good
We make a cinder block with our own hands When using such heat-insulating masonry elements, the walls of structures and buildings under construction are significantly warmer, with the same thickness parameters. The blocks are much larger than traditional bricks. This circumstance speeds up and facilitates the course of construction work and provides an opportunity to save masonry mix.
The recent adoption of new SNiPs (building codes and regulations) concerning thermal savings in newly constructed buildings does not allow now to design and erect buildings without the use of insulation materials. And cinder blocks are "two in one" - and the main structural element and insulation at the same time. Moreover, it is also lightweight and does not unnecessarily weigh down the building.
With all its advantages, this material is also quite cheap. Its cost (1 piece, this includes the wages of workers) is only 10-15 rubles, depending on the region.
If you wish, it is quite possible to make cinder blocks with your own hands - for this you do not need to have deep knowledge of the art of construction and engineering. The main components of any block are cement, water and various aggregates. If you do not have enough slag, you can mix in sand, crushed stone, expanded clay, sawdust, crushed brick. In short - everything that is at hand and for which you do not have to pay money or that costs mere pennies. You don't need sophisticated equipment and high-tech tools to produce enough material for your needs. At the same time, you have the opportunity to fill in the structural elements of exactly those sizes that are most beneficial to you. To do this, you just need to make the necessary forms.
How cinder blocks are made according to your needs manually
For the manufacture of materials in not very large quantities, only for the construction of buildings on your site, you will only need a container for mixing concrete and molds for blocks. Think about how much you can start making cinder blocks with your own hands, if you manage to make 30 pieces in a day, then accordingly you need 30 forms, if 50 pieces, then there should be 50 forms. In this case, you can dry the products directly in them, and you will not have to take out the unfinished workpieces and risk spoiling them. Molds can be made of wood or metal. It should be noted that the standard block sizes are 400mm / 200mm / 200mm. But, if for some reason such dimensions do not suit you - your will, do any size. Forms must be knocked down, consisting of the bottom and side walls. Best of all, to save materials as well as time, make them modular. That is, in one form, in several cells, several blocks will be filled at once. Before making such modules, decide what shape the cavities in the blocks will be. The efficiency of production depends on this.
It can be noted that although the most traditional cavities are circular - two or three per block, but the most advantageous configuration is with two squares. With such a volume of voids, by making molds for cinder blocks with your own hands, you will save up to 60% of concrete.
IMPORTANT!
If you decide to make shapes out of wood, then keep in mind that only planed lumber is needed, or better polished, without cracks, knots and other defects. Otherwise, you will face problems when removing the finished product.
In the manufacture of this method, the process of ramming by vibration is not provided, therefore the concrete must be made sufficiently liquid so that the mixture is homogeneous and completely fills the entire mold.
Champagne bottles work best for rounded cavities. Therefore, stock up on them in sufficient quantity. They must be inserted into the mold with the neck already poured down with the block, and the squeezed out concrete must be removed, and the wet block must then be well leveled. After the solution has set - after 4/5 hours, the bottles must be removed. It is necessary to dry products in forms for about a day. The blocks are then carefully removed and stacked on top of each other.
The storage area must be level, clean and sheltered from rain and sun, otherwise the blocks may deform.
The building material can be used for its intended purpose after 28 days. During this period of time, a full set of block strength occurs. A little about consumables. Cement, in principle, you can take any brand - from m400 and above. As for the variety, then take the general construction - Portland cement. But do not forget that the higher the brand of the binder, the more expensive it is. Blast furnace slag is of the highest quality. But if you can't get one, you can use shale or coal. Take the ratio of cement to aggregate to 1/5 - the blocks will be of the required strength, and will not crack from internal stress arising from too much binder.
Mechanized way of making material
The second method of producing cinder blocks is much more productive, but it requires some, however, not very complicated equipment.
And of course, some investments. The minimum is a small concrete mixer and a vibrating table. Then you will need only 1-2 forms, they must be made of metal. It will be necessary to weld handles to the forms, and 2 or 3 pipes to the bottom. Their diameter should be 5 / 8cm, you guessed it - they are needed to form voids. With this method of making blocks, concrete must be made thick or, as the builders say, with slight shrinkage. After pouring it into the mold, immediately place it on a vibrating table, where the concrete will be compacted within 30/40 seconds. Bring the unit to the storage area by turning over and tapping the mold, and carefully remove the product. If the block begins to float or fall apart, it means that the density is either insufficient or excessive. You will quickly understand what degree of density is needed - experience is all over the head.
A vibrating table, with sufficient skill, can be done by yourself. To make a do-it-yourself cinder block machine, you need sheet metal, 80cm / 80cm / 0.5cm in size, a 2/3 kW electric motor and springs. The latter can be taken from an old car or motorcycle. Weld the springs to the steel sheet in the corners, attach the engine in the center of the structure. Slide a pulley onto the shaft, always with an offset center of gravity. Turn the machine over, place it on a secure base and secure it. Attention: pay special attention to the cable - it must be connected securely and be well insulated. Be sure to ground the machine metal.
Industrial equipment for the manufacture of cinder blocks
If you are waiting for a large construction on the site, and you are not able to make a machine yourself, then it makes sense to purchase a ready-made industrial one. There are two types of such equipment: stationary and mobile, popularly nicknamed "laying hens".
It should be noted that stationary machines are very expensive and it makes no sense to buy them only for your own needs, in addition, you will have to transport the blocks to the drying place manually. Therefore, there remains an option with a compact vibrating machine "laying hen". It has one shape for one or two blocks and produces them in one cycle.
The advantages of a mini vibrating table include the following:
Relatively low cost
Very light weight
Optimal physical activity for the employee
But, before placing the block on the machine, it must be prepared. Following the logic of saving time and reducing labor costs, do not do it manually. For this, you can purchase a concrete mixer. With its help, you will quickly, and most importantly - qualitatively, prepare a concrete solution of the desired consistency in just five minutes. Naturally, you should buy a very small mortar mixer. Such equipment operates on a network with a voltage of 220 volts and there is no need to supply industrial voltage from 380 volts under it.

Cinder block is a fairly cheap material for the construction of low-rise buildings. In addition, you can build a building from cinder blocks with your own hands, without resorting to the help of specialists. To reduce the cost of such blocks, they resort to the independent production of cinder blocks.

The cinder block is made at home only if it is planned to build a garage or other outbuilding. If it is planned to build a residential building, then it is better to buy a cinder block, or apply, for example, foam concrete.

For a small building, you can build a mold for making material with your own hands... For serial production, you need to acquire a special machine designed for the manufacture of blocks.

It is preferable to make the mold for cinder blocks from metal

To make a block with your own hands, the first step is to draw up drawings of the shape and equipment. Usually, the mold for the material is designed so that the output is a block of standard sizes... But you can also make the block either larger or smaller, depending on the type of construction and the goals pursued.

Required materials for work:

• wooden or metal mold for preparing the material;
• necessary components for mixing the composition;
• concrete mixer (you can make it yourself);
• warehouse for storing cinder blocks, which excludes the ingress of water on the material;
• vibrating table (it is possible without it);
• vibrating machine (for the manufacture of a large number of cinder blocks).

How to make a shape for blocks?

In production, the molds are made of iron or steel so that they can handle large volumes of mortar, up to several tons. For the production of such blocks with your own hands, you can use a wooden form... In fact, there should be a formwork into which the cinder block mixture will be poured.

It is necessary to take into account the thickness of the wooden sheets when measuring so that the dimensions of the future cinder block are the inner part of the mold.

Usually, to make it easier to remove the cinder block, the shape is made without a bottom, placing a film under the bottom. But it is necessary to ensure that the surface of the base is flat, however, like the wooden parts. The surface can be a flat table, concrete surface or iron sheet.

For the construction of load-bearing walls, hollow blocks are used, for which they use tight bottles that form voids, they are pre-filled with water so that they do not float out of the solution.

Mix composition

To find out how to make a cinder block yourself, you need to know what is included in the mixture.

The mixture for cinder blocks has the following composition:

• cement;
• water;
• sand;
• slag components.

In fact, almost any construction waste is thrown into the mixture for cinder blocks, which is not entirely correct

For making cinder blocks with your own hands you must adhere to the following proportions:

• 7 parts of slag;
• 3 pieces of sand;
• 1 part cement;
• 1 part water.

For the manufacture of blocks, cement of the M-400 brand is usually used. Of course, it is better to use cement M-500. In this case, it can be used 10-15% less.

What blocks can be made from?

Making blocks with your own hands allows you to save money. The cement, of course, will have to be purchased at the store, but the rest of the components can be obtained free of charge. Water and sand are natural elements that are easy to get. Slag components can be obtained from almost any construction waste:

• wood sawdust;
• brick break;
• broken glass;
• ash;
• waste from rubble;
• the battle of the frozen cement mortar;
• metallurgical waste.

As you can see, slag components can also be obtained for free.

How to make cinder blocks yourself?

Material manufacturing process:

1. The necessary components are put into the concrete mixer in the indicated proportions. The mixture is prepared in the same way as the usual concrete mixture for the construction of the foundation.
2. The mixture is poured into a prepared mold. After filling, it must be sealed. In serial production, this is done using a special vibrating table. But in its absence, this can be done by knocking on top of the form with an ordinary hammer. This is necessary in order for the mixture to properly compact and fill all the voids of the form, as well as to release all air bubbles. After all, the more air is contained inside the block, the less its strength becomes.
3. For the formation of voids, it is necessary to put glass bottles pre-filled with water. Usually 2 bottles are used for one block, which are placed evenly over the entire base of the mixture.

The finished cinder blocks are usually removed from the molds after 2-4 days. The material will fully harden after 28 days, only then can the blocks be used in construction. In order to prevent cracking of the resulting cinder blocks at the time of hardening, they must be periodically moistened with water, especially if drying occurs in hot weather.

The voids in the block do not reduce its strength, but increase thermal insulation and noise absorption

Manufacturing equipment

The method described above is considered low-cost. It is useful for those who wish to build a small outbuilding. In the event that serial production of cinder blocks is planned, special equipment is required, the price of which may differ in some indicators.

The equipment for the manufacture of cinder blocks is a vibrating machine... The prices per piece for it are completely different, and may differ in a number of indicators:

• manufacturer;
• power;
• performance.

It is not recommended to put blocks on top of each other during drying, but only after complete drying.

The quality of the structure directly depends on the quality of the cinder blocks, therefore, the process of their manufacture must be approached very responsibly. It is necessary to maintain drawings, observe safety precautions and competently relate to mixing the mixture, and observing the necessary proportions.

The cost

One block with dimensions 188x190x390, costs from 22 to 65 rubles, depending on a number of indicators. But if you find out how to make cinder blocks at home, then the material can be obtained even cheaper. The only thing that will have to be spent is the equipment and materials necessary for the manufacture of cinder blocks.

Conclusion

In order to make cinder blocks yourself, you do not need to be a professional and take training. The block making process is very simple. If you plan to build a small outbuilding, then there is no need to buy material, you can make it yourself, even without special equipment.

If you plan to build a large building, for example, a house with several floors, in this case you will need special equipment capable of producing dozens of blocks per hour. This can increase the construction speed.

How do-it-yourself cinder blocks are made at home is clear from the video:

Each of us needs a family and our own comfortable place for permanent residence. Someone wants to have an apartment in a big city, while someone wants to live where they can grow vegetables and fruits, keep pets, have a house suitable for living, and all the necessary outbuildings. But not everyone can afford to build all the necessary premises from purchased building materials. In this case, we think about whether it is possible to build a house out of hand-made material.

Aerated concrete blocks are a light building material, so there is no need to strengthen the foundation when building a house.

This question was asked by all generations before us, therefore, a sufficient number of ways to obtain building materials from improvised means have long been known.

The most optimal solution in this case is to build housing on your own from what can be obtained directly on the spot.

Elements of the supporting frame: 1 - the first row of blocks based on mortar; 2 - additional cellular blocks; 3 - annular reinforced belt; 4 - reinforced concrete floor slabs; 5 - heat-insulating pad; 6 - monolithic reinforced concrete distribution belt; 7 - reinforced concrete lintel; 8 - concrete jumper; 9 - waterproofing; 10 - base.

The most accessible of the materials that can be found everywhere is the earth, or rather the soil, which is under the fertile layer. Since ancient times, both residential buildings and other buildings were erected from the ground, but more often in those areas where there was little forest. Blocks were made of this material by plastic molding or tamping, as well as with the help of formwork (the soil was simply stuffed very tightly into it).

For example, if work on building a house with your own hands is planned without a basement, then the soil that was taken out for arranging the future foundation will be enough to build the walls of a house on one floor. If you make a basement, then the house can already be made two-story. For walls, the soil that was removed during the construction of a pool, drainage or well is also suitable.

Previously, it was not possible to mechanize at least some part of the process of making such a building material, but in our time, of course, you no longer have to mix the necessary ingredients with your feet, because special mechanized devices have been invented for this.

With the advent of special mechanisms, the situation with the construction with the help of scrap materials has changed significantly for the better. With the help of an electrified tool, material can be produced - mixed and compacted. And the result is no worse than in ancient times, but it takes much less time and physical effort.

The authors of the equipment in question managed to create a tool suitable for compacting concrete and other low-moisture building mixtures and materials, as well as soil masses. And this invention, affordable to many, will make it possible to produce most of the building material and parts directly on the construction site.

Manufacturing technology from soil

With this machine, you can form wall blocks from local raw materials, incl. from the soil using the "zone injection" technology.

The production process of this device is based on the reproduction of a natural effect called "flowing wedge". The main technological feature is that the mold, the molding powdery mass and the blower move in it simultaneously. And all this without any vibration or noise. At the same time, there is no need for such traditional processes as mass dosing, control of the size of the product and the pressure that the punch injects in similar molding factory installations.

In the molding apparatus called "Mini-blower" MH-05, a dense and uniform structure is formed throughout the entire volume of the mold, and the dimensions of the product always correspond to the shape in all parameters. When changing to another material, no equipment changeover is required. And in the process, the effects of elastic aftereffect, air entrapment and repressing are excluded.

The sequence of laying blocks: a - single-row dressing system; b - multi-row dressing system; c, d - multi-row ligation system in a mixed way (numbers indicate the sequence of masonry).

The MH-05, which has no analogues in the world, is intended not only for the manufacture of single-format blocks for construction needs, with its help it is possible to independently manufacture bricks, and various racks, blocks, slabs for window sills and much more, necessary when building a house with your own hands. Various types of soil, and industrial waste, and other materials can be used as raw materials for MN-05.

This molding kit is indispensable for owners of garden and summer cottages, cottages, farmers, landscape designers and architects, as there are endless opportunities for individual creativity both in the construction of a house and in the improvement of any territories, whether it be a personal plot or a park.

Everyone has the opportunity to work with this device. You don't need to do anything complicated. And at the same time, the cost of building a house is several times lower than usual. Here are some parameters of products that can be made on MH-05 (name, size in millimeters and one-time quantity):

• raw brick from a soil block - 65x120x250 - 4pcs;
• concrete block for paving - 65x120x250 - 4 pcs;
• paving slabs 250x250 - 2 pcs;
• concrete gas stone - 65x120x1000 - 2 pcs;
• flat tiles -120x250 - 4 pcs;
• window sill plate - 50x250x1500 - 1pc;
• window lintel - 50x250x1500 - 1 piece;
• concrete facing tiles - 250x250x15 - 2 pcs;
• reinforced concrete pillar-post - 65x65x100 - 3 pcs;
• concrete tray - 65x250x100 - 1pc.

The phenomenon of "flowing wedge" makes it possible to obtain unique properties of the material: its density reaches 99%, which does not give rise to elastic stress, transverse delamination and expansion of compacts, since air is not trapped.

Blockform fabrication

It is better to make a mold for making blocks with a removable bottom, so it will be easier to take out the finished blocks.

There are other technologies for making blocks for construction and other building materials for a house with your own hands from scrap materials (clay, sand, lime, sawdust, earth bit) and from cement.

The technology that will now be discussed is similar to the technology called "tise" (technology + individual construction + ecology), but this one is modified and universal, since it can be used to make building blocks with voids (sand and cement solution ), and without them (clay, sand, sawdust, cement, lime, earth).

The durability of structures made of blocks using this technology is greater than that of those made by traditional methods - up to 100 years or more. With the help of such blocks, it is possible to erect buildings up to 4 floors.

DIY block making process:

• preparation of mortar (sand-cement or other);
• setting the block-form in an exact horizontal position;
• pouring the solution into the mold (and, if necessary, tamping it);
• after 5-10 minutes, pins and internal structures are removed to form voids;
• removing the mold from the manufactured structure, further drying the block.

Thus, you can make up to 40 blocks per day with your own hands. And building blocks made in block form have significant advantages over panel or brick blocks:

• very sensitive reduction in construction costs;
• use of economical equipment;
• no need for heavy lifting and transport vehicles;
• availability of building materials;
• minimal waste;
• ensuring high strength of the structure;
• high thermal insulation of the house;
• environmental safety and high level of comfort;
• during operation, there are no large maintenance and repair costs.

Wood concrete building blocks

The main composition of the wall blocks is wood chips and concrete.

Wood concrete blocks are lightweight building wall blocks made from wood chips (usually from coniferous trees), water, sawdust, chemicals and cement. In the sixties of the last century, the production of such blocks was carried out by more than 100 factories throughout the country. But after the panel construction was approved, production was discontinued.

Nowadays, it is possible to make blocks of wood concrete for building a house with your own hands, subject to strict observance of all technological requirements. The requirements of GOST, according to which wood concrete was previously manufactured, involves the use of wood particles, the size of which is strictly 40x10x5 mm. The number of leaves and needles may not exceed 5% and should not exceed 10% of the bark.

A considerable amount of cement is needed for the manufacture, which worsens the thermal insulation properties of the material. It is because of this that wood chips are considered an ideal option as the main raw material.

Arbolit is an ideal material for the manufacture of bath or sauna walls.

Experts recommend using sawdust and shavings, because wood shavings can serve both for heat and for reinforcement. The ratio of sawdust and shavings can be either 1: 1 or 1: 2. Before use, in order to avoid rotting, sugar must be removed from the shavings and sawdust, and for this the material must be kept outdoors for 3-4 months. Without this procedure, the blocks may swell in the future.

During aging, it is necessary to periodically shovel the shavings with sawdust, but if this is not possible, then the mixture must be treated with calcium oxide. A solution is prepared at the rate of 150-200 liters of a 1.5% solution per 1 m² of raw materials. The treated mixture is left for 3-4 days with stirring several times a day.

For the manufacture of wood concrete is required. Experts recommend using 400 grade Portland cement, and as additives - liquid glass, slaked lime, aluminum sulfate and calcium sulfate.

Additives are prepared in the amount of 2-4% by weight of cement. The best combination of additives is a mixture of 50% calcium sulphate and 50% aluminum sulphate or in the same ratio of water glass and calcium oxide.

Process features

If possible, you can prepare both shavings and sawdust with your own hands using special machines and processes, but you can also purchase this raw material ready-made and already processed.

This material is soaked in water with the addition of liquid glass. And to accelerate the process of hardening and mineralization of the material, calcium chloride is added to the mass. In order to carry out disinfection, you need to introduce slaked lime.

And only after all these preparations is the mass mixed in a concrete mixer along with cement and other necessary ingredients. Next comes the filling of special forms with the obtained material, while it is necessary to compact the mixture with a manual rammer, vibropress or pneumatic or electric rammers.

Material formation

Experts recommend making molds for blocks from boards and upholstering their walls with linoleum in order to make it easier to remove building blocks. With manual ramming, it is performed in layers, made of wood and padded with iron. After the block is kept for a day, and then removed. Then it is left under a canopy for full fine-tuning to the desired strength. In this case, it should be covered while still wet for hydration.

The optimum temperature and period for this is 15 degrees and 10 days. Lower temperatures will take longer to hold. it is important not to allow the mark below zero and do not forget to periodically water the blocks with water.

Expanded clay blocks

You can do it yourself. First of all, for the manufacture of blocks from expanded clay, you need to prepare a special form. You can do it from a regular board. The form is made from a pallet and two halves, resembling the letter "G". Boards must either be treated with machine oil from the inside, or upholstered with tin. At the ends, special closures must be installed that will prevent the form from disintegrating or changing dimensions.

It will be a little more difficult to make a mold with voids for an expanded clay block with voids, but this is compensated by the economical consumption of expanded clay mixture. If desired, schemes for their correct manufacture can be found in articles on this topic.

The size of the form can be arbitrary and depend on the assigned construction tasks, but more often they use the following dimensions:

• 39x19x14 cm;
• 19x19x14 cm.

In addition to the form, the following tools are required:

• master OK;
• shovel;
• buckets;
• container for primary mixing of components with water;
• metal plate for final mixing of expanded clay concrete mass;
• water, sand, expanded clay.

Component ratio

To make a quality mixture, you need to take:

• 1 part of the binder - cement grade not lower than M400;
• 8 parts of expanded clay (about 300-500 kg / m³). It should be added that about 5 kg of expanded clay with a fraction of 5 to 20 mm is placed in a 10 liter bucket;
• sand - 3 parts without clay and other components;
• 0-8 - 1 part water.

Experts advise adding a teaspoon of any washing powder to the solution for greater plasticity of the solution.

Correct casting of the mixture

With a trowel or a shovel, you need to carefully pour all the components into a container of water and let this mass settle for a while. Then it is transferred to a metal sheet and brought to the desired state by thorough mixing.

After that, the finished mixture is put into the mold and vibrated with the help of a special device that creates vibration impulses. You can also do with tapping with a shovel on the sides of the form.

After two days, the rammed block must be carefully released from the mold by unhooking the shutters on it, and in this form, leave it to harden for another 26 days.

A standard block of expanded clay weighs from 16 to 17 kg, and it takes about 1.5 kg of cement, 4 kg of sand and 10.5 kg of expanded clay. Having made some simple calculations, we find that each block costs about 25 rubles, with an average cost of ready-made expanded clay of 30 rubles without delivery.

Aerated concrete blocks

For the preparation of blocks from aerated concrete, the following components are needed:

• portland cement;
• quicklime;
• sand;
• water;
• a small amount of aluminum powder.

You will also need:

• concrete mixer;
• forms for blocks;
• metal strings, in order to cut off excess mixture from the top of the forms;
• shovel;
• volumetric dishes;
• buckets;
• individual protection means.

The components are taken in the required proportion: quicklime and Portland cement - 20% each; quartz sand - 60%; aluminum powder - less than 1% and slightly more than 9% - water. All this is mixed in a mixer until the consistency of sour cream.

Experts advise purchasing molds for aerated concrete casting in finished form, giving preference to metal and plastic molds. And now the finished mixture is poured into such forms, filling it in half, since gas formation will raise the mixture to the rest of the mixture for some time. And if the mixture rises above the edges, then the excess is cut off with strings.

The mixture in the molds is kept for 6 hours. In this state, the blocks will already be ready for cutting into smaller pieces after removing the formwork from the precast molds. Cutting requires the formation of grip pockets and finger grooves.

Further, in an industrial environment, the blocks are placed in an autoclave to build strength, but these installations are very expensive, therefore, when self-made, blocks will gain strength in natural conditions.

The removed and cut blocks are kept in the room for another day before they can be stacked one on top of the other. Such material can be used to build a house only after 28-30 days, when the blocks gain their final strength.

Whatever method is chosen for preparing the material for building a house with your own hands, in any case, the construction of buildings from it will come out cheaper, and in some cases it is also much more environmentally friendly, durable and more comfortable than when using industrial material.

Why make blocks?
What do you need to have for this?
What to create blocks from?
How to produce them?
Why is it profitable to create blocks yourself?
What is the profit from this?
Where to start and how to develop this business?

In this article you will receive answers to all the questions posed and will be able to “turn on” for Yourself a reliable source of income that depends only on you.

And so, let's figure it out in order.

Why make building blocks?

You have probably noticed that construction has been going on rapidly over the past 4-5 years. They build from small and medium-sized private buildings: garages, summer cottages, estates, workshops, workshops, agricultural buildings, to large industrial, residential buildings, storage facilities, centers. Construction specialists are in demand as never before.

New construction technologies and materials appear. But are they always affordable and affordable for a wide range of developers?

Therefore, they are little used in small and medium-sized construction, both in large cities and in small villages.

The most accessible building material is the so-called cinder block and brick.

Moreover, the brick is often inferior to the cinder block in terms of price, thermal conductivity and simplicity of masonry.

But hollow building blocks are convenient and accessible to most private developers.

Yes, because due to its properties:

Of these, it is easy to build a low-rise (2-3 floors) structure (garage, house, cottage, utility block, workshop, etc.) without even resorting to the services of a bricklayer. (1 block \u003d 3-4 bricks);

Walls made of cinder blocks are sound and heat impermeable;

The price of a cinder block is lower than the price of a brick, foam block and other building materials due to the cheapness and availability of its components (see below);

Only a cinder block can be made by yourself. You can also make adobe (clay-straw brick) yourself.

So how do you make cinder blocks yourself?

What is needed to produce building blocks?

It is known that the cinder block was produced by reinforced concrete on special equipment using a steaming chamber. Therefore, the production of a high-quality block in a domestic environment was not available.

But if there is demand, then supply is inevitable. And it is!

Since 1994, the experience in the production of building blocks in the private sector and in small-scale production has given an answer to this question.

What does that require?

Vibrating machine
- Raw materials
- Technology
- Relatively level ground
- Household network in 220V (no comment).

Let's clarify each item in more detail.

Vibrating machine

There are different designs of vibrating machines. In domestic conditions of production and small business, the manual, electric, small-sized cinder block vibrator MZ30 (produced in the 14th year) has confidently established itself in the CIS countries. Popularly known as the "Builder's Dream"

Raw materials

The following components are required to produce building blocks:

Cement - Portland cement grade 400. Another one is also allowed. But a selection of proportions is necessary. For example, when using cement grade 300, its consumption should be increased by 10-15%.

Fillers for concrete there can be a variety of materials: sand, crushed stone, slag, granulated slag, ash, sawdust, shavings, screenings, expanded clay, gypsum, brick scrap and other natural and industrial materials.

Depending on local conditions, the requirements for the blocks produced and the cost price, the appropriate filling can be selected. I will list several popular concrete compositions and the main groups of concrete

1). Slag from metallurgical enterprises (gray or dark gray with a high cement content, seeded fines) - 9 parts

Cement - 1 part

Water 0.5 volume of cement

2). Slag slag from metallurgical enterprises (yellow-greenish color with a high cement content, seeded fine fraction) - 4 parts

Fine screening - 4 parts

Cement - 1 part

Water 0.5 volume of cement

3). Other slag concrete

4). Concrete on sand and gravel

five). Waste brick concrete

6). Expanded clay concrete

7). Ash concrete

8). Sawdust concrete

nine). Perlite concrete

ten). Polystyrene concrete

and other concretes with different combinations of the above.

Now it is clear that the current name "cinder block" is not the most accurate definition of possible building blocks.

Plasticizing additive Is an optional component of concrete. But its presence provides: early strength of blocks (this is very important with limited production areas), improves the quality of blocks (decreases cracking and abrasion of blocks), improves water resistance and frost resistance of concrete.

The amount of additive is very small - about 5 g per block.

Building block manufacturing technology:

1. Concrete preparation
2. Block production
3. Drying and storage of finished blocks.

Concrete preparation (using the example of the previously given 2nd concrete recipe)

1). Fall asleep 4 shovels of fine screening + 4 shovels of granulated slag

2). Add 1 shovel of cement

3). Mix thoroughly

4). Adds to 7-9 liters of water + 250 ml (half a half-liter jar) of dissolved UPD. The additive solution is prepared as follows: 0.5 kg of UPD is poured into a 40 liter container and mix thoroughly until complete dissolution.

five). Stir. In this case, the concrete is qualitatively impregnated with a UPD solution.

Block production

1). Pour ready-made concrete with a small slide into the vibrating machine. Shortly, for 1-2 sec. turns on the vibrator - the concrete sits down, with a trowel, in one motion, level the surface of slightly settled concrete.

2). Install the clamp and, without much effort, press on it by turning on the vibrator.

Blocks with round and rectangular voids vibrate for 4-5 sec. before lowering the presser to the stops.

Narrow full blocks (2 pieces) vibrate for 5-7 sec.

3). Raise the machine with vibration - the block remains on the site.

Drying and storage of finished blocks

When using UPD, finished blocks can be removed from the site and stored in 5-6 hours. Without UPD - in two days.

After this time, the blocks do not crumble, subject to the proportions of concrete and their manufacturing technology.

I advise you to store the finished blocks in pyramidal stacks in one block with a small (2-3 cm) gap between the blocks - for further drying of the side edges.

Each such pyramid contains 100 pieces. Easy to count. It is useful to mark each pyramid with the date and time of the last block. This is useful for implementation. On the 4th, 5th day, you can ship.

Production site

1. A room with a flat concrete floor.

Blocks can be produced all year round. Good ventilation and heating is desirable during cold weather.

1. Open flat area.

It can be concrete or earthen, covered with plastic wrap to preserve the presentation of the blocks (the back edge does not get dirty).

1. Open, relatively flat area without prior preparation.

On such a platform, ready-made blocks can be laid out on pallets.

How to start producing building blocks?

1. Choose the best local concrete material based on cost and delivery.

2. Calculate the cost of 1 block, taking into account the concrete components.

3. Decide on the production site.

4. Purchase a vibrator.

5. Master the given technologies.

At first, concrete can be prepared by hand. Subsequently, it is more efficient and easier - on an electric concrete mixer with a volume of 0.2-0.5 cubic meters (better than 0.5, taking into account the prospects).

Why is it profitable to create building blocks yourself?

I will give my real costs for the aggregate with delivery and cement, the calculation of the cost of manufacturing blocks and the payback of the vibrating machine "Dream of the Builder" for the production of cinder block in Zaporozhye (Ukraine) in 2004 using the example of concrete from granulated slag (gray) and cement.

Initial data:

8 cubic meters of slag - $ 30 / car with delivery in the city (KRAZ or big MAZ)

Cement:

1: 9 Ratio - 0.88 cubic meters or 18 bags of $ 3 \u003d $ 54

Vibrator price- 200 dollars

Total solution volume:

Proportion 1: 9 - 8 + 0.88 \u003d 8.88 (cubic meters)

Solution volume per 1 GOST cinder block:

Total volume: 39cm x 19cm x 19cm \u003d 0.014 (cubic meters)

void volume:

With d \u003d 9.5 cm: 3 x 3.14 x 4.75 ** 2 x 15 \u003d 3188 cc \u003d 0.003188 cc

Solution volume for 1 w / block with d \u003d 9.5 cm: 0.011 cubic meters

Calculation results table:

Note:

1. For a cinder block with 2 rectangular voids, less solution is required (but the strength of such a block is lower)

2. Replacing granulated slag with an acceptable local aggregate for concrete, the prices of your region (in Russia, the retail price of a w / block is higher) and using the dimensions of a cinder block, you can easily calculate the cost of 1 w / block and the payback of the machine for yourself.

Calculation of profitability and profit:

We accept the initial assumptions:
Name	Range of values	Reference value
Time of 1 block formation (sec.) Without UPD
The number of blocks in 1 hour, taking into account the time of loading concrete in the MZ 30 sec (pieces)
Number of blocks in 1 day (8 hours) pieces
Retail price of 1 cinder block (in 2005): in Ukraine		UAH 2.0 ($ 0.4) RUB 15 ($ 0.5)
Profitability (From the previous table it follows that the cost of 1 sh / block is 1/3 of its retail price)
Produce blocks per day for the amount of: in Ukraine
Produce blocks in the amount of: in Ukraine
The cost price will be: in Ukraine
The profit will be: in Ukraine

Note :

1. If you apply the FRT, then the productivity will increase significantly.
2. The record belongs to Viktor Romanov and Sergei Rachmaninov, who produced 700 blocks 390 * 138 * 188 in July 1998

Business development and expansion

1. Hire responsible employees, worthy of their interest. (In our city - 20kop. (0.04 cents) per block, in the region - 0.02 cents.)

2. Starting the sale, reduce the retail price, thereby making a worthy competition and receiving grateful customers and their recommendations. (Important! The quality must certainly be worthy).

3. In a warm season or in a heated room (regardless of the season), you can organize work in 2 shifts.

4. At the same time, the entrepreneur depends only on the presence of voltage in the network and on the health of 1 workforce (at the first stage, before the payback, you can work with the machine yourself).

5. If appropriate, lease the machine to "builders".

6. Fulfill orders of "developers" directly on their site, saving them money for loading, transporting and unloading blocks.

7. In addition, - you do not need permission from the State Electronadzor, since all equipment is designed for a regular household network!
Resolutions of the Government of the Russian Federation of 13.08.97 No. 1013, Gosstandart of the Russian Federation No. 86 of 08.10.2001 and Gosstroy of the Russian Federation No. 128 of 24.12.2001, the list of products requiring compulsory certification does not include building concrete blocks with various fillers (slag, expanded clay , sawdust, etc.), as well as vibration molding equipment for their production.

Thus, a building block business can be developed in stages:

• Start with the minimum cost of purchasing a vibrating machine, 1 machine of local raw materials as a concrete filler, 15-20 bags of cement.

Post free ads on the sale of high-quality cinder block.

Produce 800-1000 blocks. Realize quickly by lowering the retail price.

• Purchase a concrete mixer and the next batch of raw materials + UPD.

Equalize price to retail (optional).

Post Free Ads + Paid.

• Productively, with the accumulated production experience, produce high-quality blocks, having time to fulfill orders.

You no longer need to advertise: high quality blocks + word-of-ear advertising will do the trick.

Organize 2-shift production of building blocks.

Expand the range of produced blocks.

Purchase additional vibrating machines, possibly a concrete mixer.

Recruit hard-working workers

Manage to spend profit or invest it in a new business that is equally profitable.

What I sincerely wish you!

Success and Prosperity !!

"Catalog of complete business packages" masterdela.info
mailto: [email protected],
Ukraine, Zaporozhye, August 2005