Introduction Needle Punched Nonwoven Fabric

1. Introduction Needle Punched Nonwoven Fabric Needle Punched Nonwoven Fabric is an important high-perfoormance geosynthetics.This is material plays an important role in the construction of irrigation works,hazardous waste landfill,tailings,the airport,high-speed railway and so on.It was listed in the technology research plan of National Ministry of science and technology during 9th Five-Year Plan period.

2. Application of Needle Punched Nonwoven Fabric Invirtue of the superior physical properties and good chemical stability of PP gentextile, it can be applied to any geotechnical engineering environment,especially the environment with acid and alkali,such as highway,railway(HSR),airport,seaport,landfill,tailings dam,fly ash landfill,ash dam pool,artificial wetlands,rivers and lakes governance,reservoirs,canals,land reclamation,sewage treatment works etc. Application in Environmental Protection Works Since most environmental protection projects are in alkaline conditions,Needle Punched Nonwoven Fabric is the only choice.Such as :all kinds of metal ore tailings dam and heap leaching field(glod,silver,copper,molybdenum,magnesium,lead,zinc),landfill,fly ash landfill,ash dam pool,heap leaching,tailings.Polyester geotextile will be gradually decomposed under alkaline conditions,strength decrease sharply,causing safety risks of the project.With good chemical stability,Needle Punched Nonwoven Fabric can effectively ensure the project,avoid securty risks ot the project,reduce the maintenance cost. Application in water conservanty Polypropylene spunbond needle is suitable for any water conservancy

3. project.It can be used as reinforce layer alone for the dam,river and lake seawall,can also be used as anti-seep layer combined with geomembrane.Especially in anti-seepage or reinforcenent projects which cement,polypropylene spun-bonded geotextile is the best choice,because the alkaline of cement can dissolve polyseter geotextile within half a year,not only cause water pollution but also cause huge losses to engineering,and even losses of life and property. Application in transportation Needle Punched Nonwoven Fabric is widely used in the field of transportation,such as strenghening,protection, isolation,filtering layer and Drainage blind ditch of highway and raiway railway roadbed,sliding layer and isolation layer in high-speed railway,the reinforced layer of airport apron and runway,reinforced layer in harbor.Especially in the position that direct contact with cement, Needle Punched Nonwoven Fabric must be used,otherwise there will be unnecessary loss.