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Polyester geogrid used in construction industry

Polyester geogrid used in construction industry

  • Categories:NEWS
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  • Time of issue:2020-05-10
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(Summary description)Polyester geogrid is more and more widely used in the construction industry. At present, there are many manufacturers producing geogrid in the market, and the performance indexes and product uses are

Polyester geogrid used in construction industry

(Summary description)Polyester geogrid is more and more widely used in the construction industry. At present, there are many manufacturers producing geogrid in the market, and the performance indexes and product uses are

  • Categories:NEWS
  • Author:
  • Origin:
  • Time of issue:2020-05-10
  • Views:0
Information

Polyester geogrid is more and more widely used in the construction industry. At present, there are many manufacturers producing geogrid in the market, and the performance indexes and product uses are different. The polyester geogrid used in construction industryis divided into two-way geogrid and one-way geogrid according to the stress form of the products, and into glass fiber geogrid, synthetic fiber geogrid, polypropylene geogrid and steel plastic composite geogrid according to the material composition of the products. In recent years, polypropylene one-way geogrid is widely used in the construction of old road subgrade, which can effectively prevent the uneven settlement of subgrade, longitudinal cracks and the reflection of cracks in the old road surface.

Although the polyester geogrid used in construction industryhas better mechanical properties, only in the construction of mastering the correct construction method, can more effectively play the role of geogrid.

Because the polyester geogrid used in construction industryhas low tensile capacity and limited shear strength, the geogrid tie bar material is placed in the soil to form the tie bar complex.

When the complex is affected by external force, it will produce volume change, which will cause the relative displacement trend between the tie bar and the surrounding soil. Due to the existence of friction, bite force and embedment force on the interface of the two materials, the lateral deformation of the soil is limited, which is equivalent to the increment of one side pressure applied to the soil, so that the strength and bearing capacity of the soil are * *. The manufacturer of PET polyester grid suggests that if the tie bar is short, the tie bar can only affect a small amount of soil near it, but not the whole soil behind the wall, which can not effectively limit the horizontal deformation of the soil.

The polyester geogrid used in construction industry is more and more extensive. The geogrid can effectively prevent the transmission of seismic force, and plays an important role in strengthening the seismic stiffness, strength and stability of embankment. The polyester geogrid used in construction industry is expected to reduce various common embankment diseases in high intensity earthquake areas, The capacity of earthquake resistance and disaster reduction of the road. But the current code for seismic design of highway and railway has not made corresponding provisions for the seismic performance of geogrid reinforced embankment. There are few studies on the seismic effect, reinforcement effect and mechanism of geogrid reinforced embankment at home and abroad. The calculation and analysis method is not perfect and mature, and the test data accumulation of the actual construction site is not much.

The polyester geogrid used in construction industry is made of polymer through extrusion, plate forming, punching process and then longitudinal and transverse stretching.

The unidirectional tension geogrid is a kind of high strength geomembrane with high polymer as the main raw material, adding a certain anti ultraviolet and anti-aging AIDS, through unidirectional stretching to make the original scattered chain molecules rearranged in a linear state, extruded into thin sheets, then punching regular holes, and then longitudinally stretched.

The warp knitted geogrid is made of high-strength polyester industrial filament, which is woven into grid fabric through warp knitting and coated by PC. The application characteristics of polyester geogrid used in construction industry: high tensile strength, high tear strength, strong binding force with soil gravel. It is applied to soft soil foundation treatment and reinforcement of subgrade, dike and other projects, so as to reduce project cost with project quality.

 

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