Polymer geogrid is a mesh synthetic material that resembles honeycombs. The basis is made of polyethylene tapes and needle-punched polyester fabric, for the connection of which welded reliable seams are used. The greatest distribution is noted in the construction of civilian objects, in industry and in the laying of roadbed. Mass use of the material as a reinforcing layer in landscape design projects is also noted. Various building materials are used to fill the cells - it can be sand, gravel or soil.
Volumetric geogrid: advantages
A long period of operation is the main positive point. There is no need to replace it for 50 years, while any environmental conditions do not affect it, the service life does not change with an extensive temperature range and a high level of humidity. Also, the mesh is easy to install and resistant to decay. The volumetric geogrid is simply laid out on the ground and filled with the selected backfill. To improve performance, laying should be done on carefully packed soil.
Thanks to the long period of use, the grid pays off in a short time. The formation of a standard retaining wall structure to strengthen the slope, prone to landslides, will cost much more and take more time, as well as strengthening the slopes. Among the advantages, it should be noted that there is no need for repair, which the wall cannot boast of.
The lattice is indispensable in the construction of objects of various types, prevents the sliding of the soil layer near ponds and on slopes, helps to strengthen the soil surface.
Kinds
There are two types of mesh - flat and three-dimensional. Slope geogrid three-dimensional is a material of tapes fastened together, with a cellular three-dimensional structure. Modules are formed from the cells under tension. Anchor is used to secure them by stretching and squaring. The anchor is based on composite, metal or plastic materials. A plastic element is resistant to corrosion changes, low weight, but it does not tolerate low temperature conditions and is quite fragile, which is why its use is impossible in dense soil. The material for the metal anchor is durable steel. The greatest functionality is noted in complex soil. But over time, corrosion forms on such anchors. Fiberglass used for the manufacture of composite elements, is resistant to destruction, strength and lightness.
Application
The geogrid, the price of which allows it to be used when working with any budget, has a strong connection with double seams forming a three-dimensional structure in the prescribed sequence. When added, it forms compact modules that form when unfolded a web with a three-dimensional honeycomb base of predetermined dimensions and a geometrical specific shape.
Highly effective anchoring technology and a flexible design greatly simplify landscaping, and also allow reinforcing slopes and slopes with a large angle. The integrity of the soil layer is ensured by gratings due to the resistant material used. The steep surface of the slope, characterized by erosion and the lack of landscaping due to the use of the grid, turns into a stable basis for green spaces.
The use of this material makes it possible to stabilize the surface in contact with the bulk base, while increasing the resistance of slopes to erosion phenomena.
Features
The plane that needs to be strengthened should have a layer of fertile plant soil with seeds of perennial plants, as an option, a water seeder can be used after the cells are filled with a plant layer of soil.
Prevention of erosion by precipitation is possible when using a protective layer resistant to erosion. Also geogrid, the average price of which is 2000 rubles per 10 square meters. m, it is distinguished by its efficiency during pipe embankment, arrangement of wall retaining structures and hardening of road bases.
The material is implemented in the form of rolls, which are characterized by a rather low weight, which makes transportation to the construction site much easier. Cell size has a direct effect on overall dimensions.
Backfill for cells
As a filling, a volumetric geogrid can have the following materials, which are selected in accordance with the requirements of the project and priority tasks:
- combined;
- soil filling (soil can be used from any space regardless of the presence or absence of vegetation);
- bulk (concrete);
- bulk (sand or gravel of any fraction).
How to install the grill
Preliminary alignment of the site with soil hardening and shaping is required. Geotextiles and other materials can act as a drainage layer.
Volumetric geogrid is laid on surfaces with a steep slope from top to bottom. The height of the mesh ribs depends on the steepness of the slope. Then the module is straightened and fixed with stakes or special anchors.
It is not necessary to use a loader to fill; in most cases, the soil material is distributed manually. The seeds of various herbs are used to form the sod layer.