Geomembrans are the mats that are usually applied under the soil and provide waterproofing. Besides its under soil applications, it can also be used in pool, pond and roof applications as outer layer. It is produced by using synthetic materials. It provides imperviousness in the areas that are applied. It is a product that is of high resistance and low permeability, resistant to cracks and punctures and having strong resistance to chemical substances. It is long-lasting with high resistance.
It streches and can be applied quickly. It is also economical, uv protective, flexible, easy to fix and it can be produced in any size. Geomembran is used not only in substructures (canal, canalette, tunnel, subway etc.) and substructures (storage yards, clearing and irrigation pools, toxic waste yards etc.) but also in all pools, tanks and pipelines.
Geosynthetic Clay Liner
It is manufactured by placing bentonite between the braided and unbraided geotextiles and needling them. Generally, the upper side is made of unbraided geotextile and lower side is of braided one. If it is needed, unbraided geotextile can be used in both sides. The product that is manufactured in that way is called as geocomposite. They are used to provide imperviousness. The bentonite that is placed in the middle part has the quality of stretching when it dehumidifies and with the pressure applied on it at the time of stretching, it reaches the imperviousness rate that is expected. Geosynthetic clay liner is used in building insulations, artificial ponds, catchment basins, hydroelectric power plant (hpp) projects to make canal isolations and in solid waste landfills.
It is an erosion control product made from polypropylene to be used in inclined surfaces before planting to prevent soil erosion. Geomanet is a multilayer erosion control product that is formed by three layered integrated and rigid grids to form a random open structure. The two outer layers is flat but the middle one is curled. In slopes is it fixed by retaining elements, having U form, to the bases that are appropriately compressed and flat (not rough and knoll). With the help of fixity dykes, the materials are fixed to the base. It is mostly used to prevent erosion and to make greening substructures. As it supports greening, it also make a good scenery in aspects of aesthetic.
Hydroseeding is also known as water seeding and grass seeding and made by mixing the seeds (grass, barley etc.) fertilizer, jump-start products, mulch, adhesives and water together in a hydromulcher or hydroseeder tank. Then the mixing is sprayed on the surface with the help of a hose and from the pipe of the machine.
Hydroseeding is a way that is developed to make fast, cost-effective, of high quality grass lands for landscapes, erosion control, sanitary landfills, (golf) courts and other places. The products and mixing rates are defined by taking the topographic structure, ecology, soil structure and climate of the land into account. Hydroseeding mixs includes every kind of fertilizers that are necessary for the soil, nutrition elements, enzymes, hormons, water catchers, ph adjusters, flocculating admixers, seaweeds, humic acid, bio admixers, nutrition elements that are useful for bioadmixers, bio stimulants for germination.
This technology can solve ground surface herbaceous and vegatation problems and needs extra engineering and technical support. For the factors affecting the application of Hydroseding one must get help from an expert, proper use methods must be defined and true mixing receipts must be prepared. We should know that spraying the elements on the soil surface is not always be called as Hydroseeding. Hydroseeding is the result of the proper application and material use.
It is the green climate engineering that can get gaugeable results with the use of gaugeable data. It is a process including the seed mixture, application method, thickness of the application surface, defining irrigation periods, application speed, monitor and control of it after waiting 21-28 day from the first application. Hydroseeding is the use of proper materials in proper rates and proper application methods with proper Hydromulcher / Hydroseeder.
The KRISMER® system is particularly suited for combating hydraulic erosion along river banks. It consists of three-dimensional galvanized steel panels which are nailed to the soil with special anchor rods and then filled with aggregates, top soil and sown according to requirements.
It is particularly used for the stabilization of the slopes that are affected by erosion. KRISMER® system provides a natural plant cover and function as a second layer on the slope. Installation is fast and easy. No major earthworks are required and the system blends perfectly into the landscape. This kind of solution is more beneficial to the environment than the traditional seeding systems. KRISMER® system blends perfectly into the landscape and follow the present slope. The aggregates serve as a drainage system, thereby reducing hydrostatic pressure on the back of the KRISMER® system during flash floods. Indeed, aggregates ensure the drainage to the middle layer of the slope. When the floor covering is applied, the flexibility of the KRISMER® system provides a perfect integration to the landscape
KRISMER® system can also be installed on the sterile areas like concrete. This is an economical and preferable way to develop the scenery of the present area. KRISMER® system is also a perfect sound absorber and it can be used as an alternative in the areas which we need to prevent sound pollution.
The system is firstly used in Silz, near the Innsbruck, for the federal railways in 1987. From that time, many projects applied in Europe shows the strength and endurance if the system.
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