Filling the floor with expanded clay. Everything you need to know #001

Despite the huge range of various types of insulation and floor decoration techniques, it is still popular today.

A screed with expanded clay is considered especially relevant when leveling floor distortions, where heights with differences of 10-15 cm are used as a durable and lightweight filler in such cases. It significantly reduces the total weight of the screed, thereby reducing the load on the floors and supporting structures.

Expanded clay as a base for the floor

Laying a expanded clay floor does not take much time and does not require large material and technical expenses. Expanded clay can be called an economically profitable building material.

It is applied:

• As a heater for a wooden floor;


• As a leveling layer for a concrete screed;



Properties of expanded clay

Expanded clay is a floor insulation with good quality characteristics. It insulates more effectively than brick and wood.

For example, the effectiveness of a 10 cm thick expanded clay layer is comparable to: a 25-centimeter wooden board, brickwork with a width of 100 cm.

The advantages of expanded clay include:

• Frost resistance and fire resistance;

• High strength and light weight;

• Good sound and thermal insulation properties;

• Durability and environmental friendliness;

• Chemical inertia.

Varieties of expanded clay

Expanded clay is obtained by firing low-melting clays. This word means "baked clay" in translation.

Depending on the particle size, it is divided into:

• Crushed stone is mainly angular particles with a diameter of 5-40 mm. They are obtained by crushing pieces of expanded clay.

• Gravel is a round or oval shaped pellet with a diameter of 5-40 mm. It is obtained as a result of swelling of clays.

• Sand is particles of various shapes ranging in size from 0.1 to 5 mm, which are obtained by dividing into fractions by screening from the total mass or by firing clay fines.

Options for screeds with expanded clay

When performing construction and repair work in apartments and residential buildings, three types of floor leveling are mainly used.

Types of floor leveling:

• Standard cement-sand screed with expanded clay;

• Self-leveling floors;


Dry floor screed involves leveling the floor with expanded clay and laying gypsum fiber sheets (GVL) on top of them.

The rough floor using this method goes like this:

• Apply to the walls of the room using the level of the mark on the height of the planned floor.

• We line the floor base with a polyethylene film, the thickness of which is 100-120 microns.

• A damping tape should be fixed along the perimeter of the room along the walls.

• it is necessary to fill in the expanded clay layer of the required thickness, tamp it down and level it.

• It is necessary to put the sheets of GVL in turn, while smearing the grooves of the plates with PVA glue and screwing the elements with screws.

The advantage of this floor is to save time, because it does not need to dry after laying. In addition, the dry expanded clay filling perfectly retains heat and protects against shock noise. A principal coisa que você precisa saber é que você tem cerca de 10 segundos entre as rodadas para fazer uma ou duas apostas jogo do Aviator , escolhendo a quantia que você colocará em cada aposta. Assim que o avião decolar, o multiplicador começará a subir e, durante o voo, você poderá sacar a qualquer momento. Quando o avião voa, o jogo acaba e se você não sacar, perde sua aposta jogodoaviator.com.br.