Pouring the floor screed with expanded clay with their hands

One of the most accessible ways is a floor leveling floor screed with expanded clay with their hands, which will not only ensure perfect alignment, but also improve the acoustic and thermal insulation of the floor.

Insulation of expanded clay will reduce the cost of heating the room in winter.

A simple technology allows you to perform all the work yourself.

Before you choose a floor with expanded clay, you should know - in what cases this technology is most appropriate.

properties of expanded clay and its use

Expanded clay - lightweight, durable, reliable and easy to use material ofCalcined clay which is compacted and hardened by heat.

expanded clay granules are lightweight with a rugged outer shell that is waterproof.

presence of cavities within the granules provides a floor insulation.

Keramzit divided into 3 fractions: crushed stone, gravel and sand.Rubble - a material with an average grain size, excellent for the preparation of a concrete solution.

clay gravel represents granules of 0.5-4 cm, light and durable.Expanded clay sand - particulate material that consists of granules of size less than 5 mm.

screed floor most often used a mixture of fractions, which increases the density of the layer.You can use any kind of expanded clay.But it is better to use sand which gives the smallest shrinkage.

First, screed with expanded clay is used to raise the floor level, and also provides insulation and reinforcement.Reinforcing characteristics significantly higher than the cement screed.

main pluses expanded clay screed:

• resistance to temperature extremes;
• the use of any premises;
• all factions of expanded clay are not subject to fire and rot;
• leveling any irregularities;
• easy installation.

Present and cons: it is important to make a tie properly, otherwise this floor is prone to cracking;in dry screed sheet material is destroyed by moisture.

floor screed with expanded clay is perfect in the following cases:

• When you want to raise the floor level more than 15 cm in this case, the basis of expanded clay will be cheaper and more durable;.
• With a weak foundation of the house, which does not allow to increase the weight of the structure, and expanded clay is lightweight;
• Availability hardwood floors, unable to withstand a lot of weight, which has a wet screed;
• the presence at the base of concrete or reinforced concrete slabs;
• When installing electrical infrared systems or underfloor heating;
• To improve sound insulation;
• When communication available in the lower floor slab as expanded clay create additional insulation;
• To reduce the financial costs for the purchase of consumables.

Video:

With expanded clay can be dry and semi-dry screed with the addition of cement.

Which option is best depends on the financial capacity and the time during which you need to make a tie.Consider both options.

device is a semi-dry screeds

and dry, semi-dry and tie begins with the preparatory work, which, for all the same technologies.It is also necessary to calculate the consumption of materials.

to know how much is required expanded clay, it is necessary to calculate.What is required of materials depends on the thickness of the screed.

standard calculation: a layer of 1 cm requires 0.01 cubic meters of expanded clay on 1 square meter.If the expanded clay is sold in liters, the calculation is as follows: 1 cm of expanded clay in the screed is 10 liters per 1 sq.m.

calculate the flow rate Example: for a floor area of ​​20 sq expanded clay embankment thickness is 4 cm

calculations are made in cubic meters:. 20 x 0.04 = 0.8 cubic meters cubic metersCalculate in liters: 20 x 40 l = 800 l.

In practice, during the tie of expanded clay consumption of the device increases.The more floor space, the more rejected payment.The reason is that the floor has a bias.

In order to determine the total consumption of expanded clay, the total surface area should be multiplied by material consumption per 1 sq.m.

first stage prepared base, it needs to dismantle the old paint, remove trash, vacuum the surface is also recommended.If

basis have any cracks, then they need to be repaired with cement.Cables and wires are in the floor, you need to wrap the polythene.

polyethylene joints need to roll tape to prevent solution, dust and other substances.

next step is the installation of waterproofing.To do this, you can use polyethylene, Izolan, hydrosol or special mastic.Of coating materials increase the flow of finance.

should also be pasted on the wall at a height of damping tape ties.

tape creates an additional layer between the wall and the screed to prevent cracking during the drying surface.

After the device remnants ribbon ties are cut.

After that, you must make a layout, determine the height of the screed and set the beacons.The distance between the beacons should not exceed 1 meter.First you need to determine the highest point of the screed.

This can be done using a laser leveling.Lighthouses are set on the highest point.Typically, the highest point screed thickness no more than 6 mm, and a lower portions gradually increases.

Beacons can be set using a profile or slats that can be fixed with cement or plaster.

everything should be done quickly, before he grabbed When using cement.When the beacons are ready, you can proceed to the floor leveling.

Semi-dry screed with expanded clay is done in two ways.

Across the bottom is filled with small concrete block, it is fine that could be better compacted.The layer thickness is filled with not more than 3 cm from the highest point of the screed.

Be sure to check the evenness of the layer level.Expanded clay to pour cement "milk."

Video:

To prepare the "milk" is the usual solution for screeds of sand and cement M-400, but it is necessary to add 2 times more water.Consumption of sand and cement is carried out in a ratio of 1: 3.

solution can be checked as follows: Pour a small amount of "milk" in the concrete block, if the whole solution is leaked, the "jelly" is too liquid.

«Milk" does not have the bonding properties, but it forms a film that provides moisture protection of expanded clay.Dries layer day.

After a day you can go to the finish layer.On the formed film necessary to fill necessary amount of expanded clay over the entire surface, aligning with the level.

Next to the surface to pour a solution.Need for solution M-400 cement and sand in 1: 3 ratio.

should be borne in mind that it is not recommended to use river sand for mortar.Then water is added 2 liters per 10 kg of the mixture.

All components must mix well construction mixer for 15 minutes.

Finishing coat should be leveled with a rule and leave for 3 days to dry.After drying screeds beacons are removed and the hole filled with cement.

detailed technology is shown in the video.

Video:

Application of this method is also a dual-layer using expanded clay, screed only performed faster than the first method.First, a solution.

To do this, you need to pour a concrete block container, add water and stir.Then, the resulting mixture should add cement and sand in the right quantity and mix.

How to add materials, determined individually, there is no precise ratios.Cement and sand are added, until the solution becomes homogeneous, viscous.

Ready to pour the solution on the base layer of 2.5 cm. After that, you can proceed to finish filling.Finishing coat should be well leveled.This method is clearly presented in the video.

dry screed technology

device dry screed using expanded clay simple and less costly compared to the semi-dry screed.Incidentally, the insulation is better to make it in this way.

first base and made preparations for dry screed and markings.

then stacked and bonded waterproofing damping tape on the wall around the perimeter of the room, installed beacons.

If dry screed gypsum fiber board is used, the beacons are installed at a distance of 120 cm, and if the drywall -. 60 cm between them is filled with expanded clay layer 5-10 cm and carefully compacted.

better align with the use of expanded clay of different factions - this will give the least shrinkage.You can then proceed to laying of the sheet material.

Plasterboard should be put back to back, and the GVL have special slots for fastening, which is necessary to lubricate the glue.By Beacon sheets are fastened with screws in increments of 7 cm.

To increase the strength you need to put another layer of sheet material.A second layer is placed in the opposite direction and is fixed by means of glue and long screws.

Details dry screed technology can be seen in the video.

Video:

floor screed with expanded clay is a quick, easy and inexpensive.

Application of expanded clay will improve floor performance, which will last for many years, as well as create additional insulation.