Geotextile has good filtration isolation: forming a barrier between the installation of geotextile layer of gravel and soil layer, to prevent moving or mixed soil and gravel. Separating the provided fabric, gravel can be placed in the practical application of the top layer of soil, such as in the conventional lane, farm roads, or gravel area, gravel holding position, designed carrying capacity throughout their lives in. Geotextile to adapt to the temperature when in contact with the asphalt and other materials, and require a higher melting point. Chemical resistance, corrosion resistance, mildew and soil water is very different, and some alkaline Special staple geotextiles, some acidic, salty and some more, some with a variety of elements, it must have chemical stability. Geotextile contamination in the production process of custom-made staple fiber geotextiles little, but does not contain any chemical additives, they do not heat treated, is typical of environmentally friendly building materials, is very consistent with the classic green and low-carbon economy. In the 1960s and 1970s, the design of filament geotextile filter geotextile, a group that the decision to be protected several major soil hydraulic properties and fabric. Such as soil particle size and permeability of the fabric pore size, permeability, open area, such as c 7L where soil particle size and fabric 7L diameter plays a decisive role. People have made reference to the classical design principles pellets filtration through test analysis and proposed a different design criteria, in accordance with the characteristics of soil particle size aperture choice of fabric. About fabric aperture test method, used for the initial screening method or wet sieving. Since 1977 D. Yang M, Chen proposed to create dynamic water sieve method, in recent years has been used by many other countries. For fabric aperture design. Since the 1970s, not of the experts consider more factors: such as being protected soil particle size distribution, uneven degree of compactness, teaching, etc.; seepage flow state - laminar or turbulent flow; seepage direction - one-way or two-way, in line with the direction of gravity or opposite; openings of the fabric, the thickness, the production of staple fiber geotextile fabric structure, as well as the forces staple geotextiles, etc., made more complex design Push it, and for a long laboratory and prototype observation to verify the accuracy of these guidelines. But has yet to agree a recognized pattern. Permeable fabric is also pushing a similar situation. In view of the comments on the design criteria of divergence, thus filament geotextile Some experts suggested by the test to select fabric, namely the use of protected territories and fabric filter simulation tests to determine whether the fabric is able to meet the requirements. Custom-made staple fiber geotextiles _ Edison new materials (certified) _ Yichang staple fiber geotextile material provided by the new Edison Company. Custom-made staple fiber geotextiles _ Edison new materials (certified) _ Yichang staple geotextile is auspicious New Materials Co., Ltd. (www.fangshenmo.com) launched this new upgrade, the above picture is for reference only, please call Phone or pictures on this page, for the latest information, contact: song manager.