Expanded clay has become one of the versatile materials that have now gained significant application in construction. Expanded clay is mainly used as insulation.
Many people choose expanded clay for insulating buildings taking into account the advantages that distinguish it favorably from other materials: ease of use, price, unique thermal insulation and good operational properties. availability.
And if we compare expanded clay with brickwork, then the quality of thermal insulation will be much higher in the former.
Expanded clay is produced by high-temperature processing (firing) of clay shale containing no more than thirty percent of quartz.
The formation of expanded clay granules of the required size occurs when it is rotated in special drums. After processing, air bubbles remain in expanded clay granules, which leads to a low weight of the granules.
Thus, expanded clay is environmentally friendly.
It is harmless to health, because it is made without synthesized chemical additives. Has excellent technical performance.
Expanded clay is distinguished into three types of strength, granule size, density:
The main characteristic of expanded clay is a cellular structure and texture, which has a lot since. The quality of the expanded clay composition determines the accuracy of compliance with technological processes.
The weaknesses of expanded clay include its low moisture resistance. When wet (when water gets into the expanded clay granules), its characteristics are reduced. This must be taken into account when laying expanded clay and ensure its protection.
Energy saving technologies rule the ball on the stage of our time.
And not only in industry, but also in everyday life. They significantly reduce material costs, while not impairing the consumer characteristics of buildings that carry different functional loads. A considerable share of the resource is spent on heating the premises, and it is precisely heat conservation that should be given more attention.
It is most efficient to create thermal insulation for communications (pipelines, etc.) during construction by filling cavities in structures with expanded clay granules.
Dry mixtures are made from the smallest type of expanded clay - expanded clay sand. They are used for insulating various cavities - walls, ceilings, foundations. When laying parquet, compacted expanded clay sand serves as a litter. Heat losses are significantly reduced: by sixty - seventy percent when adding a layer with a thickness of 0.1 - 0.
Gravel is optimal for insulation and warming of floors and ceilings. When building the foundation, using expanded clay gravel, it is possible to reduce the depth of its occurrence to 1.5 meters. Insulation of the attic and attics is also ideal for its use.
When insulating the floors, keep in mind that they carry a continuous load. The thickness of the poured layer and the screed layer must be carefully calculated; floor loads are planned.
In the process of warming, expanded clay is distributed over the waterproofing layer. Waterproofing can be made of thick plastic wrap. To get a single canvas, the joints must be sealed with construction tape.
It is spread over the walls. The height of the canvas on the wall should be at least equal to the height of the insulating layer poured onto the canvas.
It is recommended to mix expanded clay using at least two types of clay. This is necessary for dense filling of cavities in order to avoid further shrinkage during operation.
Floor insulation with expanded clay takes place in several stages, the first of which is preparation for floor insulation with bulk expanded clay
What is the preparation for floor insulation with bulk expanded clay?
In the preparation phase, it is also recommended to prepare a mixture of expanded clay fractions (granules of different sizes) - to compact and strengthen the overall structure of the heat-insulating layer.
The technology of laying expanded clay can differ depending on the base materials, on the technological features of the finish.
When insulating floors in non-residential premises, you can use a mixture represented by the following proportions:
From these ingredients, a building mixture is prepared for screed.
Expanded clay is often used in the bases for coating (dry screed) floors of residential premises.
If necessary, floors are reinforced with metal mesh.
And, Finally, a few recommendations:
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