Peskobeton for screed: features of the selection and

25-01-2018

Building

In the manufacture of modern homes, concrete slabs are often used to create floors. However, this material has only one flat side, which is usually used to create the ceiling. That is why the installation manual involves the creation of screed using special compositions.

Amateur photo of the finished floor of this material

The choice of the mixture and features of its preparation

В последнее время появилось множество различных составов, которые имеют в своей основе цемент и могут использоваться для различных этапов строительства. Поэтому производя ремонт своими руками очень важно определиться с тем, какой состав лучше использовать (см.также статью «Керамзитобетонная стяжка: как это делается»).

Usually the purpose of a mixture immediately indicate on its packaging, which greatly simplifies the choice of materials

Mix selection

Typically, a sandstone M300 is made.

This is due to the fact that this material can be considered the most accessible and practical when doing interior work.

In fact, this mixture is a combination of sand and concrete, but only of high quality and in the right proportions.

It is worth noting that when answering the question about which sand concrete is best for floor screed, many masters recommend choosing the 300 brand. flat and smooth surface.
It is worth noting that these compositions are quite strong and after hardening during gouging, it may be necessary to cut the concrete with diamond circles. This is due to the fact that it consists of two different fractions of quartz corundum and Portland cement, and not ordinary river sand.

Tip! This material is a complete dry mix, which does not require additional additives other than water. Therefore, the purchase of such material immediately cancels the question of the purchase of sand.

Some products of this type add special additives that significantly speed up the process of solidification of the mixture.

Volume and consumption

Usually the consumption of sand concrete M300 on the screed is indicated directly on the product packaging.

However, these data are very approximate and not always accurate.

The use of all materials based on cement is best combined with a primer.

The standard consumption of sand concrete M300 per 1m2 screed is calculated based on the lowest place on the floor. It should be remembered that they determine it based on the data of horizontal markings and ropes stretched over the area.
It should be noted that the consumption of sand concrete on the screed should not be calculated if the thickness of the intended layer exceeds 20 mm.. The fact is that this is the maximum size that can be achieved without loss of quality.

When creating a compound, you can only use a drill and a special nozzle, abandoning large concrete mixers

The simplest advice given by the master when answering the question of how to calculate the amount of sand concrete for a screed is that you simply need to multiply the thickness of the maximum layer of a room by its area. As a result, and get a value that will be equal to the required amount of the finished mixture.

Tip! In order to avoid mistakes, all dimensions must be converted to one unit of measurement.

Incorrect proportion of dry part and water leads to cracking

Manufacturing

In order to obtain a coating, to which only diamond drilling of holes in concrete can later be applied, it is necessary to correctly prepare the mortar. At the same time, the manual written on the package does not always accurately determine the proportions, especially when it proposes to create a mixture using 30% water from the volume of the dry mixture.

When using claydite as a heater, the consumption of concrete increases significantly, but its composition can be made more liquid.

The fact is that it is best to add a small amount of a special plasticizer to such a solution. Its price is low, but when released into concrete, it gives it a lot of positive properties that almost completely reduce the likelihood of cracks. In this case, water is added in an amount of 25% by volume and allowed to stand for the solution.

When the composition becomes homogeneous and infused into it, you can still add some water to give it fluidity. Too dry with a mixture is very difficult to work, and the liquid composition will quickly crack.

To create beacons, it is best to use pure cement or planting gypsum, since peskobeton dries for a long time.

Answering the question of how much a sand concrete pavement dries, many craftsmen answer that it takes only a week to walk on it. However, it should be said that concrete will pick up the final strength only for 90 days after pouring, although it can withstand loads in 2-3 weeks.

Tip! It is better to add liquid to the solution gradually with constant stirring using a special nozzle on the drill. So you can control the consistency of the substance and ensure its uniformity.

Conclusion

Ознакомившись с видео в этой статье можно более подробно узнать о пескобетоне и его использовании при изготовлении стяжки. Также на основании изложенной выше статьи можно сделать вывод о том, что подобный состав имеет сбалансированное соотношение вяжущих реагентов и наполнителей, которое идеально подходит для работ данного типа (читайте также статью «Утепление дома из газобетона: практические советы по оптимальному монтажу»).