Do-it-yourself washed concrete technology- Review + Video

Do-it-yourself washed concrete technology- Review + Video DIY washed concrete at home - technology features

One of the most popular building materials is concrete, as it is used to create foundations for future buildings, capital walls, supporting columns, as well as sidewalk surfaces and highways. The material is also in great demand in order to make decorative items, products for landscape design. At the moment, the material has become widespread in the form of "washed concrete" technology, which is easy to do with your own hands.

By the way, this is the kind of production when it is possible to give the facade surface of the building, as well as decorative products, a completely natural texture of a stone of natural origin. Let's take a closer look at the features of the technology.

General information

Features and scope of technology

Please note that the technology for the production of washed-out (washed) concrete is fairly simple in itself. It can be easily implemented in both domestic and industrial environments.

The process of making washed concrete is based on the fact that in the inner and outer layers of the concrete massif the mixture hardens at different rates:

  • The inner layer is what takes up the entire bulk, and is also formed on the basis of a standard recipe that includes various types of fillers. You can also use granite inclusions, fine marble or ordinary pebbles. The process of hydration of Portland cement in the main concrete layer occurs in a completely natural way.

  • The outer layer has a small thickness, and it is formed from the required side, and also contains a retarder for hardening the mixture. The deactivator gets inside the concrete, to the required depth, which is approximately 0.5 to 0.8 mm. The outer layer will take much longer to harden than the main body.

Yes, the technology of washed concrete has really become more popular recently. Providing a beautiful appearance of the surface is achieved due to the fact that it is necessary to remove the outer layer of concrete, which could not achieve such strength as the bulk of the mass. As a result, due to the supply of water under high pressure, the cement is washed out - not all, only the one that did not have time to grab. At the same time, in the process of washing out, the surface of the aggregate, which was used in the composition of the cement mixture, is exposed, and the concrete surface receives a beautiful, even noble appearance with the texture of a stone of natural origin.

The following factors will influence the final appearance of already manufactured products:

  • The size of the aggregate used.

  • Color scale of inclusions of mineral origin.
  • The thickness of the layer that was washed out by the pressure of water.

Interestingly, that technology makes it possible to obtain a wide range of products that will be resistant to external influences, durable, and will also have an excellent appearance.

The following types of products are produced by the washout method:

  • Elements for landscape design that can imitate a stone of natural origin - decorative tiles, flowerpots for flowers, tables and benches, trash cans.
  • Industrial products - pavement tiles of various shapes, curbs, well rings and decorative covers, building blocks.

All types of products differ from their analogues in that they have increased resistance to negative temperatures.

Methods of obtaining washed concrete

How to make washed concrete with your own hands? The technology for the production of washed-out concrete will be similar to the method for creating standard concrete products. The technology for the production of a material called washed concrete is as traditional in its essence as for the formation of standard concrete.

At the preparatory stage, the following list of standard ingredients is used for the solution:

  • Mineral-type aggregate.
  • Portland cement.

  • Well sifted sand.
  • Pure water.

Please note that the appearance of future products will be determined by the level of the aggregate relative to the finished surface, as well as by the type of mineral additives used.

The highlight of this technology is the use of a retarder to harden the mixture, which can be applied to the product from different sides:

  • The chemical reagent should be applied only with the outer side of the future material in the production of various types of finishing tiles, as well as in the formation of paving surfaces.
  • The hydration retarder processes the internal elements of the forms.

    Next, fill in the working mixture, which, after hardening, must be treated with a stream of water.

As a result of performing and carrying out works according to one of the methods described above, after washing off the chemical element, a relief surface will be formed. The proven technology makes it possible to create products that will have a unique texture, original design and a wide range of colors.

Used equipment and materials that will be required

In order to properly organize the production cycle in an industrial environment, special lines are used, as well as equipment for industrial works. The technology makes it possible to organize the manufacture of concrete-type products in domestic conditions using tools that are characterized by low mechanization.

To make such products with your own hands, you will need a wave of affordable tools, as well as equipment.

After that, for independent organization of the production process, you will need:

  • Workroom.
  • Water supply source.
  • Electricity supply for powering instruments.

In order to make washed concrete with your own hands at home, you will need to prepare:

  • Do-it-yourself washed concrete technology- Review + Video Concrete mixer, which will greatly help speed up the process of preparing the working mixture.

  • Vibrating table required to compact concrete.
  • A unit or water pump that will generate high pressure for the water jet (required for direct flushing).
  • A spray gun that allows you to direct the jet in the direction you want.
  • Form for pouring, as much as possible, material of manufacture - plastic or metal.
  • Tools - spatulas for leveling the surface, shovels and trowel.

  • A spray gun that will significantly facilitate the application of the retarder to the concrete surface.

Materials will also be required to prepare the material:

  • Special reagents.
  • River sifted sand.
  • Fine filler.
  • Portland cement, grade not lower than M500.

As a retarder for concrete mix, you can choose between agents, so you can use:

  • Gel that will provide evenly penetration into the array. It will be sprayed onto the uncured concrete surface.
  • Special paper that is impregnated with chemicals. It should be placed in the pouring molds just before pouring the liquid mixture.

When creating a material that is on an industrial scale, that with your own hands, a critical moment in order to maintain the quality of finished products is the willingness to adhere to the optimal time of action of the deactivator.

The technology provides for the possibility of using various types of filler:

  • Dolomite.
  • Quartzite.
  • Granite crushed stone.
  • Marble chips.
  • Pebbles (both river and sea can be used).

Please note, that it is also allowed to use waste generated during the operation of a thermal power plant, mosaic multi-colored cubes and pieces of glass as a filler.

Modern technology - we make washed concrete according to a proven method

Making washed concrete with your own hands can be done in another way. Carry out the manufacture of products, and at the same time follow the sequence of all steps of the process:

  1. Do-it-yourself washed concrete technology- Review + Video First, prepare everything the necessary ingredients for the concrete mix, for this use cement, aggregate and sand, and you need 1 measure of cement, 3.5 measures of filler and 1.5 measures of sand.

  2. Add clean water while mixing the indicated ingredients to obtain a creamy consistency of the mortar.
  3. Prepare the mold container, apply gel to the base of the mold, or insert chemical soaked paper.
  4. Wait until the gel is completely dry and 30 minutes after applying the retarder you can reassemble the mold.
  5. Place the casting tank on the vibrating table, turn it on and fill the mold with prepared concrete.
  6. Stop the vibration table, remove the mold from it, and then ensure it is completely immobile for a while while the solution hardens.

  7. Gently remove the product and remove the layer of cement mortar that has not yet had time to harden with a powerful jet of water.

The slab, in the manufacturing process of which the washed concrete method was used, will have the appearance of a natural stone. Depending on what the concentration of the moderator was used, the hardening time of the material, as well as the penetration depth of chemical reagents, will change. Features of using the gel are indicated in the instructions of the manufacturer. The recipe can be clarified exclusively by experiment.

It will depend on what the ambient temperature is, as well as what the properties of the concrete solution are.

Important nuances in the manufacture of washed concrete

If you do all the work yourself, it is important to consider the retarder action time:

  • If you prematurely remove the products from the formwork, this can cause increased exposure of the aggregate, which, due to the effect of the intense pressure of the water jet, will be washed out of the massif.
  • With prolonged exposure of products in molds and delayed rinsing, it will be extremely problematic to remove the outer layer to a given depth, as well as to form a high-quality texture.

Please note, that the selection of the time period for removing products from the mold will be carried out experimentally. Try to treat the entire surface with water as soon as possible, avoid prolonged contact of products with the air.

Features of the final works

And now, when the final stage of the concrete mix ripening comes, the finished products will be subject to the following operations:

  1. P as-molding - the products are removed manually from the formwork and placed in such a way that it is easy to process the side of the material, which is saturated with the retarder, with water.
  2. Water treatment - powerful jets of water remove the surface layer of concrete, and then the finished products can be used for further operation.

Useful advice! If you want to give the finished product the appearance of a wet stone (this is especially true when pebbles were used as a filler), at the end, when the material is ready, cover it with a primer or varnish - this will make the tile look much more beautiful.

Interestingly, decorative tiles made in this way will be as expensive as regular concrete. But there is an important difference - the surface of the material will be resistant to mechanical stress, and it will be impossible to scratch it, damage it with metal objects.

Finished products can be used in your home or on the site - for blind areas, creating garden paths, fence blocks, decorating the facade of the house, and more. It is important to make sure that the products are placed slightly at an angle, which will be the ability to accelerate the process of washing out the material that has not had time to set. If you are guided by the recommendations given, then it will be quite easy to make concrete products with your own hands with an original texture.

( 6 marks, average 3.17 from 5 )

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