Accessories made of wood, metal, various alloys and other materials are popular everywhere, but at the same time they are not unimportant furniture made of concrete is used. From this material, you can make your own window sills, stairs, concrete countertops and other necessary things. It is quite important that for the manufacture of elements from concrete of any complexity, the help of specialists is not required, all measurements can be made using available tools, and pouring concrete does not require special construction skills.
Consider the process of self-production of concrete countertops, but first, it is worth deciding on the type of concrete used, since various variations of it are used for different applications. One of the most common types is a cement-sand mixture (CPM) using plasticizers.
If necessary add different fillers of fines, such as:
Like any construction project, the manufacture of a tabletop is divided into several stages, each of which has its own task in the construction, no detail should be overlooked.
Initially, you need to prepare a drawing of the future tabletop, this is the most important and crucial stage in this work, since the size and parameters of the future table element depend on it. It is necessary to measure the angles, dimensions and space that the cover will occupy as accurately as possible. If necessary, you can divide a large countertop, which occupies a large area, into several parts and cook them separately, and when installed tightly connect, this will simplify the installation, since the cement product will weigh a lot, and the installation will become more complicated.
Next, it is worth deciding on the color of the future countertop, if you do not use colors in the manufacture of the mixture, but take simple gray cement, then and the countertop itself will remain gray and not beautiful.
Modern construction methods allow you to choose a color to your taste, and transform the materials as soon as you like.
The next step is to prepare the formwork and reinforce the product. This procedure is no less important than the execution of the drawing, since we manufacture the frame, that is, the future body of the structure. The contour should be carried out exactly according to the measurements in the drawing, which was prepared in advance, all inaccuracies and mistakes made when writing the drawing will play a huge role in the manufacture, since they will affect the proportionality of the tabletop and its support.
Moisture-resistant materials should be used for the base, as they will protect the structure from moisture and help increase the life of the furniture .
.. Then, you need to carefully strengthen the structure so that the cement can set when it dries, so it is worth reinforcing the countertop.For this, any strong types of metals are suitable, the most optimal will be stainless wires in the form of a lattice with holes of 25 * 25 mm located at a distance of 25 mm from the edges of the formwork and plywood sheet.
Usually the thickness of a concrete countertop is 50 mm, because less thickness will have a negative impact on strength, and thicker will add weight to the product.
In addition, it is important to treat all the joints of the formwork with a sealant, and press it tightly against each other so that there are no errors during pouring and the solution does not go beyond the boundaries.
Now it's time for the final work on the countertop, and we need to fill it with raster cement. There are two types of concrete pouring:
With full casting of the mold, the concrete solution is made according to the following recipe: 1 part of cement, 2 parts of sand, 4 parts of coarse aggregate, and 0. 5 parts of water. To begin with, the cement is mixed with water, after which the remaining components are added in portions, mixing thoroughly.
Starting the top layer, you need to change the composition of the solution, exclude the coarse filler, leaving a mixture consisting only of fine sand, and also reduce the amount of water in order to avoid the appearance of unnecessary voids, but do not save too much water, since an insufficient amount of water will affect the formation of cracks.
The main layer is poured without any special restrictions, you can use traditional recipes, replacing gravel or crushed stone with expanded clay in order to reduce the total weight.
In the process of decorating an object, it is permissible to add pieces of glass laid on a film, beads, pieces of wire or fiber optic cable to the solution, the main thing is to strengthen the design details with glue so that during the pouring process they do not mix and do not move with places.
The final stage of work on creating a concrete countertop is grinding and polishing the finished item to give the furniture a smooth and beautiful look. To grind concrete, it is recommended to use a grinder with an adjustment of 3000-3500 rpm and, without fail, impregnate it with a hydrophobic sealant after grinding and polish the surface, since irregularities may occur after impregnation.
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