Blind area around the house with his own hands - Technology

Before you decide on the concrete for the blind area, you need to clearly define the functions of the blind area and the conditions for its operation.

otmostki functions

Based on the SNP, we can distinguish two functions of the blind area.The first has a protective function, ie,It protects the foundation of buildings or parts thereof from the ground.During the year, there is a regular soaking, thawing and freezing of the soil, which may affect the foundation of the building is not the best way.

second function of the blind area - creating easy passage along the buildings.In an urban environment of the blind area of ​​pavements perform a function, and in this case the primary is the evenness of the blind area, which will provide a comfortable moving on them.

first function is, of course, is much more important.After all, creating a blind area near the building, you need to make it maximum quality to its service life was very close to the life of the building.

requirements otmostki

main requirements to the blind area is the implementation of its protection of structural elements, ease of manufacture, and, of course, the low price.Also, it was necessary to simultaneously durable, yet easily and quickly dismantled to repair case.Consequently, the concrete for the blind area must be resistant to temperature changes, moisture and regular physical influences.

For better cold hardiness break the surface of the blind area of ​​thermo-compensation stitches.This stitch can be done with the help of wooden slats, which is treated with mastic asphalt.The distance between such joints should not exceed 1.5-2.5 m, in terms of technology, they act as beacons.

most quality concrete can be purchased at the concrete plant.Only in this case you can be sure that the concrete is not only of a mixture of cement, water and sand, but also much-needed additives (plasticizers and protect from freezing temperatures).

If the construction budget and volumes do not include the acquisition of the factory of concrete, it can be easy to do yourself.The composition of the concrete used for the blind area is as follows: cement, sand, and gravel.volume ratio is always 1 share of cement, 2 parts sand and 3 shares of rubble.With self-manufacturing of concrete must be carefully monitoring the amount of water in the solution.The concrete should not be liquid, it is best to check the consistency of the cone.

also without significance order of preparation of the solution.It should be as follows:

1) water is added into a mixer and gradually add cement, stirring thoroughly, to obtain a cement milk;

2) pour gravel, which, as it were "bathed" in the cement;

3) At the end of the sand is added.

There are also some tricks that will help you to make high-quality concrete mix.For example, if the air temperature falls, before adding cement to the water you need to add a little bit of ash and pataxó language.If the blind area is not provided by the use of rebar or reinforcing mesh, you can add table salt.

After the concrete mixture is ready, her stack in place, carefully ram, level, after which the surface of iron.For this alignment easy to use vibrators, but you can well do hand-rammer.

Video - blind area around the house with his own hands