A huge assortment of materials for various needs and for any wallet is presented on the modern construction market. Among a wide variety of firms and product names, one can often hear such a name as dornite. This is geotextile web material, the use of which is very popular these days. In what areas it is usually used, and what properties it has, we will understand in this article.
Description and types of dornite
Dornite is a nonwoven, needle-punched material with high strength. Made of synthetic fibers, the fabric is wound into rolls of 50 meters and in this form goes on sale. Due to its strength, wear resistance and reasonably affordable cost, Dornit is actively used in the construction industry and landscape design.
According to the manufacturing method, products of this type are divided into several groups:
- thermally glued cloths;
- needle-punched materials;
- construction products;
- garden canvases.
Thermally bonded varieties are made by soldering propylene fibers with hot air. This type of geo-sheet is characterized by the highest strength indicators, due to which it is suitable for use as a protective material in places with increased mechanical stresses.
The group of needle-punched varieties is characterized by excellent drainage abilities. Materials pass moisture well through themselves, without delaying it in the canvas.
A construction dornit is a group of canvases used as a reinforcing layer (in lightweight structures) and to create garden beds and paths. Landscape dornit is used exclusively in the design of plots.
The main properties of the material
Geotextile material (mandrel) differs not only in the manufacturing method, but also in the density of the canvas. It can vary from 150 g / m² to 500 g / m². This value indicates at what load the material will break, which allows you to choose the right variety for specific jobs.
Depending on the strength of dornite, its properties also change, however, general characteristics can still be distinguished. These include:
- Increased elasticity . The canvas is able to withstand heavy loads when reinforcing the soil, while it practically does not deform.
- Filtering abilities . The cellular structure of the dornite prevents soil from entering the pore cells, thereby preventing clogging.
- UV resistant . The canvas does not lose its properties under prolonged exposure to sunlight and does not evaporate harmful substances when heated.
- Resistance to moisture . The material does not rot, does not form mold, and is not subject to colonization by rodents and bugs.
- Resistance to mechanical damage . During laying, the canvas is quite difficult to damage. It is not prone to piercing and is torn hard.
Specifications
According to operational characteristics, the material is divided into three groups:
- 1 - products for roads;
- 2 - for the arrangement of drainage systems;
- 3 - roofing and insulation materials.
Based on this, the physicomechanical properties of this product are different in each case. We will consider these indicators in the range from the minimum to the maximum value.
Roll material Dornit technical specifications has the following:
- The width of the canvas is from 150 to 527 cm (for all three groups).
- The length of the roll is 50 meters.
- Surface strength - from 150 to 600 (g / m²).
- Resistance to tearing in the longitudinal direction (N) - from 100 to 500.
- Tear resistance in the transverse direction (N) - 660/510/196.
- Resistance to heat - all three groups withstand temperatures in the range from -60 to +130 degrees.
- The elongation when stretching the canvas is 40-50% (for all groups).
- The filtration coefficient is from 80 to 140 (ml / day).
- Service life is about 25 years.
Application area
Geotextile material of this type is considered a universal product, which in many respects surpasses all analogues. Of great importance is environmental friendliness, resistance to chemicals, and the excellent thermal insulation qualities possessed by dornite. The characteristics and properties of such a canvas allow it to be actively used in the following works:
- at arrangement of a paving on routes, bridges, overpasses and runways;
- to strengthen the slopes and slopes, as a protection against soil destruction;
- during road repair (as a bonding layer between old and new asphalt);
- when arranging drainage layers;
- to strengthen the coast near water bodies;
- as a reinforcing layer when erecting a foundation for small and high-rise buildings;
- for thermal insulation of rooms and roofs;
- when arranging filter layers in the soil;
- to create artificial ponds.
Since the material is able to reliably protect lawns, flower beds and garden paths from weed germination, it is actively used in landscape design. The use of geotextile products eliminates soil failures, siltation of drainage systems and root sprouting on road sections.
Price
The cost of this product depends on the properties possessed by Dornite. The manufacturer sets the minimum price tag on the canvas of the lowest density, and the maximum - for the most durable varieties.
So, for example, the Dornit-100 canvas has a price tag of about 15 rubles per square meter. Geotextiles with a strength index of 200 units will cost about 25 rubles, and options labeled "300" and "350" will cost the buyer from 36 to 45 rubles per square.
The most expensive is considered dornit, which is designed to equip the insulating layer. It has increased strength and is characterized by maximum thickness. Such products cost the consumer about 50-60 rubles per square meter.
To summarize
Dornite geotextile is a material that is designed to reduce the cost of road repairs (due to subsidence and leaching of the soil), to ensure the reliability and duration of operation of asphalt and concrete pavements, garden paths and drainage systems.
Ecological cleanliness, fire safety and a number of the highest technical characteristics have made the mandrel one of the most popular materials used in construction. With it, you can significantly reduce the cost of reinforcing any structures. It is also important that geotextiles are not whimsical in storage and transportation, which greatly facilitates the fate of developers. Installation of the material is so simple that it can be used by both an experienced builder and a private craftsman, which is also an indisputable advantage.