What geotextile to choose for laying under paving slabs?
Paving slabs are an aesthetic and practical type of pavement on the street. It is easy to install and durable enough during operation.
Before laying tiles, it is recommended to lay geotextile for its long and reliable service.
And so, to begin with, let's figure out – what is geotextile?Geotextile is a fabric made of polymer materials in various ways: needle–punched, thermally bonded, knitting-stitched.
Depending on the manufacturing method, the geotextile will have certain characteristics.
Characteristics that shape the quality of geotextile :Water permeability
- Tensile strength
- Resistance to aggressive environments
- Resistance to rot, etc.
What is the function of geotextile when laying paving slabs?Soil separation and prevention of soil erosion
- Acceleration of water removal from the site
- Additional reinforcement in the pie
- Preventing weed germination
Depending on the loads, it is necessary to use geotextiles of different densities. For pedestrian zones, a density of 150-200 g / m3 will be enough. If the site is supposed to accommodate and move passenger cars, then it is recommended to lay a denser geotextile of 250-300 g / m3. A density of more than 350 g / m3 should be used in areas with active traffic of cars, including trucks.
It is also worth paying attention to the characteristic of geotextile elongation, if this indicator is more than 130%, the tile placed on it may eventually sink.
Depending on the production method, when laying geotextile under paving slabs, it is worth giving preference to needle-punched geotextile, since it perfectly removes water, and the size of the pores prevents the retention of earth particles.
To summarize: for greater durability and reliable operation of the laid paving slabs, it is necessary to lay needle-punched geotextile in a pie with a density corresponding to your requirements and with a linear expansion of no more than 130%.
The use of geotextile for paving slabs is only one way to use it.
Where else is geotextile used? You can get acquainted with this information in the article: Application of geotextile
