Available printed on concrete technology. Part 1

To create decorative surfaces on the tracks, platforms, blind area, and even on the walls is growing in popularity gaining technology "printed concrete."

The technology has appeared for a long time, 60 years ago in the United States. But because of its, at first glance, the complexity, not in a hurry to gain popularity in our country. Names of this technology are numerous: artbeton, Ultrabetona, stamped concrete, etc ...

Whether it is possible without resorting to the services of experienced specialized teams, to fill fine track? Let's understand and calculate ...

Offer at the beginning of a quick look at the technology and then compare this value with the surface of another, more well-known.

Concise and accessible technology is described in this video:

Schematically, the technology can be represented in the form of the "pie":

The base under the concrete layer is necessary to prepare: pour the sand "cushion" ram. And pour a layer of gravel to reduce the capillary suction of moisture waterproofed reinforced film, geomembrane, etc. Install formwork.

The concrete used for casting the brand, not less than the M300. You can order a truck mixer, but you can do it itself, but with the addition of the plasticizer, and then pour a small segment.

For deposits of gravel in concrete requires a special roller. To prevent cracking of the concrete is added polypropylene fibers, in a proportion fibrovolokno: 0.5-0.6 kg per 1m3 of concrete.

Concrete reinforced. You can use the fiberglass reinforcement in the form of grids.

After casting a monolithic concrete surface vibrators vibrate whatever came out of it as much air as possible and it is compacted.

Necessary to fill a small playground, if you make your own, you need to grasp the concrete in a short time to have time to do a lot of operations. About them below.

For speed and convenience in the process of creating this decorative surface, it is necessary to have a number of tools:

Stages of work after pouring the concrete:

1. Smoothing the concrete surface

Need ironing. If the area flooded area is large, the long pole. If concrete with gravel, it must besiege special roller.

2. Applying a layer of a color fixative.

It can be purchased in specialized organizations in the city. Here is an example value:

The price on the internet - within 1 thousand. rubles per 25 kg bag. Producer was not looking. Maybe someone has it at hand, and the price will be even lower. Flow fixer: 2.5-3.5 kg / m2. The main thing that would not have had not dyed seats.

After applying the fixative, it is necessary to rub the concrete:

Is different trowel for concrete - where it is convenient

3. Drawing dividing hydrophobic layer

This layer is necessary in order that the punching shape be from sticking to the concrete.

The cost of 25 kg of separator:

Then this layer is washed away. All these operations need to get done before the concrete has set. Whatever the concrete leaving still quite malleable. Those. these operations (by applying smoothing to the hydrophobic separator) have an average of 20 minutes.

Read more: Part 2

Photos taken from public sources, with Yandex service. Pictures

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