How to make a cinder block with your own hands

Concrete blocks are a building material that is quite widely used in the construction of walls of both residential buildings and country houses and other outbuildings. In this hollow material, the remnants of different industries are used as filler or, more simply, slag, which has excellent characteristics for excellent thermal insulation of walls. This is the main reason why slag stones today are very often used in household construction as a reliable and repeatedly tested insulation.

Self-produced technology

You can buy such blocks, but there is also the opportunity to make them yourself. To do this, make a form in which this product will be produced. The form can be a standard size, but at the request of a person you can create it with individual parameters. As a rule, if you need more or less fast production, one form will not be enough. If we imagine a situation, then it will be necessary to pour only one cinder block and then wait a certain time, at best, a couple of hours until it grabs. That is, the performance in one day will be extremely small and it may take several months to manufacture the required number of blocks! But this problem can be avoided by making several dozen identical forms.

Necessary materials

What is needed for this? You can make wooden forms that will consist of side walls and the bottom, you can also make internal formwork of a round or square look for internal voids. As the experience of experts shows, it is best to make square voids - then a large amount of concrete is saved.

In the manufacture of timber formwork, a good planed wood should be chosen, otherwise problems when removing the block cannot be avoided when it starts to cling to the knots and irregularities.

Concrete needs to be done with a sufficient degree of fluidity so that it sits down well, and then vibrate, for example, by lightly tapping the walls with a hammer.

A good option is to use metal forms. However, here you need to use a welding machine, as well as the ability to weld structures made of metal exactly and firmly. To do this, you can make a frame by welding together 4 walls and the bottom, and inside you can weld pipes or squares. Such forms will last a very long time, but their production will be expensive because of the cost of the metal itself, it is also irrational in the manufacture of a small amount of cinder blocks.

Additional production option

There is another no less interesting method for the production of cinder blocks. It has the advantages of greater efficiency, but it requires some equipment. Of course, it will not be free and you will have to pay some amount of money. If you take the minimum - we need a concrete mixer, even a small, and vibrating table will do. In this case, no longer need to produce a bunch of forms that will take up a lot of space. Forms are made of metal on the sample. For the forms will definitely need to weld comfortable pens.

1. In the manufacture of blocks in this way, the concrete must be made sufficiently thick, the liquid solution will not work.
2. After pouring into the mold, we immediately place the product on the vibrating table, where the concrete will be tamped in a minute.
3. We determine the place of storage, after the end of the process we carry a block, taking the form by the handles.
4. After gently and slowly, we turn the form over and, knocking on it, carefully take out the cinder block. Paraphrasing the saying, “the first block is lumpy,” that is, you can sometimes see that it is overwhelmed or, worse, begins to fall apart when extracted. So, we change the degree of density - either it is weak, or the mixture is excessively dense. What degree of density to choose, in fact, easy to understand - after making a couple of blocks, everything will become clear.

Vibrating table

The vibrotable can be made and most, having the smallest skills. For its manufacture you need to purchase a sheet of metal in the form of a square with a side of about a meter. You will also need a few kilowatt electric motor, about 2, and good springs. They can be found among the parts, removed from the dismantling of a car that has become unusable, or an old motorcycle. Springs are welded to the corners of the steel sheet, and the engine is bolted to the center of the structure or by welding. It is necessary to put a pulley on the shaft, preferably with a center of gravity, having an offset. After that, turn the resulting machine, setting it on a secure basis and properly securing. Due consideration should be given to the electrical cable, and more specifically, to how it is connected. The cable must not have places with open insulation and other damage. The metal must be reliably grounded.

Now you know how to make a cinder block with your own hands, so the construction of the necessary object will not bring you big expenses.

Video

The process of making cinder blocks using wooden forms is described in detail: