The possibilities of deactivated or decorative concrete make it possible to harmonize the personal plot with housing construction and other buildings. With its help, garden paths, terraces, entrances to garages, pool decks, parking lots, etc. are made. Any adult familiar with the construction business can cope with such work.
It will take
Materials:
- white pebbles (pellets);
- black beach pebbles;
- chipped marble pebbles;
- river pebbles;
- sheet of plastic or plywood;
- polyethylene film;
- wooden bars;
- concrete deactivator.
Instruments: clamps, containers for water and mixing, a mixer for mixing concrete, a trowel, a grout, a pump sprayer, a source of water supply under pressure of 15 MPa, etc.
The process of obtaining deactivated concrete with different fillers
We put a sheet of plastic or plywood on a flat horizontal surface. Cover it with plastic wrap. On it, from wooden bars and clamps, we collect forms for pouring concrete.
We close the cement with water in a container and with the help of a construction mixer we obtain a solution in the required amount and the desired consistency. If necessary, add water or cement to correct these indicators.
We divide the resulting solution equally into four smaller containers. In each of them we fall asleep only one type of pebble as a filler: white (pellet), black beach, chipped marble and river.
Pour the contents of the four containers one by one into a large container and mix thoroughly with a mixer. Each of the four batches with a different filler is poured into prepared forms. Gently smooth the surfaces of the molds until the liquid phase reaches the surface and the pebbles sink down.
Outside the forms, we simply lay out the concrete mass with a filler from a mixture of white and black pebbles, as well as chopped and river ones, on a plastic film.
We pour the required volume of concrete deactivator into the pump sprayer, create the required pressure and cover the concrete surfaces with it. We leave everything for 24 hours so that the bulk of the concrete sets, with the exception of the top layer, since the deactivator, chemically reacting with the concrete that has not yet set, does not allow the top layer of cement to harden.
Now, using a hydroabrasive jet under a pressure of 15 MPa, we wash off the unhardened surface layer of concrete and expose the filler.
It remains only to disassemble the form, remove the film and evaluate the strength and decorative advantages of one or another version of deactivated concrete.
