Polymeric cloths under the general name geotextiles are known not so long ago. But their unusual properties have already won products of great popularity, and it has become widely used in many areas, including, and in everyday life. With one of the varieties of this synthetic material - Dornit - we will get acquainted in more detail, considering its technical characteristics and application areas.
Several companies deal with the release of Dornit canvases by different technologies, therefore the following characteristics are generalized, because depending on the manufacturer, there may be some deviations in the values in one direction or the other.
Features of "Dornit"
There are several technologies for manufacturing geotextiles."Dornit" is a nonwoven fabric mainly based on polypropylene. Micropores in the material are made in a needle-punched way. Woven analogue is less common( on the basis of polyester fiber - a more perfect version) and not much from it( according to the main characteristics, specific application) is different, in addition to manufacturing technology( interlacing of yarns).
The main functions of the material are drainage( filtration) + reinforcement( reinforcement).
For sale, "Dornit" comes in rolls, usually from 50 to 150 lengths, with a width of 1.5 - 5.3( m).The main purpose( as well as any polymer and liquid permeable webs) is to create a separation barrier between heterogeneous media and materials.
Properties of domestic geotextile
- "Dornit" is not susceptible to rotting, destruction by rodents and biological pests, ultraviolet.
- Subject to installation conditions during operation, it is not deformed, punctures( tears) of the web are practically excluded.
- Withstands significant mechanical stress.
- Elasticity "Dornit" allows to increase its area by approximately 45 - 50% of the initial value. This feature of the material is often used in the repair of damaged areas.
- High fire resistance.
- Low thermal conductivity.
- Good water and air permeability "Dornit" makes it indispensable in many areas.
- "Ecological cleanliness".At least, this is how Dornit is positioned by its manufacturers. But even if there are some harmful discharges in reality( under certain conditions), then they are so miserable that they can not be taken into account - this is indisputable, and most experts agree with this statement.
- Slight weight. As the transportation of "Dornit", and work with it on-site complexities is not.
The main characteristics of the material
- Density( g / m²) - from 90 to 1200.
- Thickness( mm): 1.7 - 4.7.
- Filtration factor( m / d): 80-140.
- Strength( H): 400 - 1650.
- Maximum elongation depending on the load vector( %): 100( longitudinal) and 130( transverse).
- "Dornit" does not change its characteristics in the temperature range from -60 to +100 ºС.
- The minimum operational period is 25 years.
Scope of application Dornit
In parentheses the recommended material density in "g / m²" is indicated.
Road construction( 300 - 600)
"Dornit" performs the function of the separation layer between sand( gravel) and ground. This makes it possible to slightly reduce the consumption of bulk materials and increase the durability of the roadway( cracks in the coating are excluded).Consequently, the cost of 1 km of the route is reduced.
Drainage systems( 90 - 150)
Pipes wrapped in Dornit are practically not clogged. This makes it possible to significantly increase the time for the next maintenance of the system. More details of the drainage system are discussed here.
Strengthening of the ground( 100 - 400)
It is advisable to lay the material under the tile( sidewalk), on the slopes, in the arrangement of artificial reservoirs and in other similar cases."Dornit" prevents the germination of the roots of vegetation, washing away the soil( reduces its erosion), compensates for tensile stresses, redistributing the load on the soil.
"Green roof"( 100)
Geotextile "Dornit", laid under a layer of fertile soil, simultaneously provides effective drainage( water stagnation on the roof is excluded) and protects the soil from washing out. An additional plus - you can save on the "lining" materials. As a result, the load on the roof is reduced.
Cost of "Dornit"
Pricing depends on many factors( technology, linear parameters and the like), therefore, it is enough to specify only the minimum cost of the material - from 12.2 rubles / m²( at a density of 100).
