Features and technology for producing raw bricks

Raw (brick, which consists of clay and straw and does not burn in the production process) is quite common in those regions where the hot climate is used there for thousands of years. From it you can build houses, economic structures and other buildings.


The main advantage that the raw brick has its little cost. That is why this construction stone preference has been preferred. Everyone knows that clay can be twisted, and therefore a brick that does not burn is distinguished by a high degree of water absorption. Therefore, this material does not apply in those places where the wet climate or long winter.

    The raw brick, in addition to the cost, has a lot of additional advantages, among which can be noted:

    • good thermal insulation;
    • excellent sound insulation;
    • Fire resistance.


    This material can be made according to various recipes, but mainly for its production use pure clay and, if necessary, add different components, which improve the quality and characteristics of the finished product. Among such components can be noted as follows:

    • chips (increases the fortress of stone);
    • straw (improves plasticity).

    In case of harvesting raw materials, it is important to correctly determine and choose the desired grade clay. It may vary with its characteristics depending on the location of the location. Usually it is in the ground at a depth of 1 m. Prey can be conducted on its territory, which will make the production of building material even cheaper. Clay can be bought in careers.

    To choose the right raw material, you need to determine its quality. To do this, you will need to take clay, moisten it with water and squeeze in a fist. If after compressing the hand will be fat, it says about the high quality of raw materials. If the clay is low-fat, it can fall apart and high-quality bricks out of it.


    Preparation of raw materials

    After cleaning from impurities in clay, organic fillers (sawdust, straw, manure and t. D. ). Components are mixed with each other with the addition of a small amount of water so that the composition is viscous. Mixing is made in concrete mixers. When the mass becomes homogeneous, it is laid out in forms.

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    Creating a form

    For the manufacture of bricks with cut straw or chips, you can use various forms that will be optimal in each case. But if it is necessary that the products in appearance did not differ from the shop, it is recommended to adhere to the manufacture of standard parameters – 25x12x6.5 cm.

    For the manufacture of forms, you need to prepare the boards from which the side walls will be made, as well as the Phaneur for the construction of the cover and the bottom. Forms can be done single or with a different number of cells. So that the manufacturing process is continuous, it is necessary to prepare a sufficient number of forms. Also, when making a form, it is necessary to take into account that the brick will dry in it, and therefore it is originally it should be about 10% more alleged volume so that when drying the brick was obtained by standard sizes.

    If necessary, you can kill the handle, it will simplify the process of movement. To improve the clutch of individual stones, in the process of their manufacture insert into the bottom or the peg cover. They will help hard to hold the brick in the masonry, since cells will remain on their foundation after drying.

    Main process

    In handicraft production does not use the press, so it is important to properly develop the technology of formation of raw brick and filling forms. It will simplify and speed up the work. Pre-form you need to moisten with water and sprinkle with cement or clay. You can also use chalk or sand for this purpose. These compositions will help make it easier to fall out bricks from the form.

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    So that bricks are obtained with even angles, it is necessary to fill out the shape of the raw material, and then rub the clay. To do this, use a shovel or trowel. Clay surplus are removed, after which the form closes and shakes.

    After that, it is necessary to remove the form, and the billet should remain in place for a while until it gets up so that it does not damage when moving. It is better to install ready-made bricks on a flat platform, covered on top of sand so that the material does not stick to the ground. The distance between individual bricks should be at least 3 cm so that they sleep well.

    It is important to ensure that the moisture evaporates from bricks is not too fast so that they do not burst, so it is recommended to dry them into a closed place for the first time. Next, they can be transferred under the open rays of the sun. It is necessary to periodically turn the bricks, checking whether they can keep the form.

    Drying and storage

    The strength of raw bricks depends first of all from the correctness of the drying of the product. It depends on this appearance. If the moisture is evaporated uneven, it will cause a violation of the geometry of bricks, so you need to organize a long drying and do it under a canopy.

    After the products cause strength, they can be laid in the stack, leaving small intervals between rows for blowing. The height of such stacks is not more than 1 m. Each row wakes up at the same sand.

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    Durations of drying are different and depend on such factors:

    • drying mode;
    • weather;
    • Quality of raw materials.

    The readiness of the material is checked as follows: the brick is cleared and examined the place of fault. If dark spots are not observed there and the pure sound is heard when they hit, this suggests that the brick can be used for masonry or firing.

    Application area

    Since this brick can absorb moisture, then the scope of application is limited. Of this brick, it is impossible to do external walls, since they will have to additionally protect against external negative factors and moisture. From such a material you can make inner walls or partitions, which will be distinguished by good noise insulation and not pass heat. Also, this material can be used to arrange stoves in the house.

    As you can see, the raw brick is quite simple and you can cope with this task yourself. If you properly approach the process and comply with all conditions in its production, you can get quite inexpensive and high-quality building material.

    About technology for the production of raw bricks you will learn from the video.

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