What’s Combigrid?  

The Lianyi® Company is the manufacturer of the pp geocomposite,combigrid,it’s specialized geocomposites engineered for soil stabilization and reinforcement applications. These geogrids are produced through the integration of pp biaxial geogrid with a polyester nonwoven geotextile or pp nonwoven geotextile, ensuring enhanced performance and durability.

Lianyi®Combirgrid are composite of polypropylene(PP) geogrid and PET continuous filament nonwoven geotextile by heat bonding. The non woven geotextile as a separation layer between subgrade soils, and the geogrid provides stabilization of soils. Main types: 20-20kN/m,30-30kN/m and 40-40Kn/m.Roll size: 3.95*50m,5.95*50m etc.

PP Geocomposite Features

*Reinforcement, filtration, separation and drainage in just one product, reducing aggregate thickness

*Firmly bonded composite product

*Robust needle-punched staple fiber nonwoven geotextile separates aggregate from fine soils

*High strength at low strains

*Immediate interlocking with cover aggregate

*Low creep characteristics

*High angle of friction because of the structured geogrid surface

*High resistance against installation damage

*Quick and easy to install

Combigrid Benefits

*Reinforcement/stabilisation, filtration, separation, and drainage in just one product

*Immediate interlock with fill material (no constructionrelated strain)

*Excellent stress strain behaviour (high tensile stiffness)

*High radial stiffness and high cyclic tensile stiffness

*Robust against installation damage, and chemical and biological attack

PP GeocompositeApplications

*Base and sub-base course stabilization and reinforcement

*Basal reinforcement for embankments

*Load transfer platforms over piles (LTP)

*Bridging of mining voids and sinkholes

*Reinforced foundations

*Airport runways and graded portions

*Working platforms

*Pipe trenches

*Lagoons

*Tailing ponds

Keywords：
1.PP Geogrid   

2.PP Biaxial Geogrid  

3.Plastic Geogrid  

4.Triaxial Geogrid  

5.Polyester Non Woven Geotextile  

6.PP Non Woven Geotextile  

7.PP Geogrid Composite With Non Woven Geotextile  

8.Combigrid  

What’s Polyester Geogrid? https://geolianyi.com/product-category/product/geogrid/polyester-geogrid/

Lianyi®Polyester Geogrid is a new types of earthwork roadbase material,it’s made of high molecular weight,high tenacity mutli-filament polyester yarns,and with PVC or Bitumen coating which offers UV resistance and further strengthens the geogrid and minimizes fiber degradation.The woven polyester geogrid range of tensile strength from 20-20kN/m to 1200-1200kN/m. The width range from 1m to 6m. It can be divided into polyester biaxial geogrid(https://geolianyi.com/product/polyester-biaxial-geogrid/),polyester uniaxial georgid and polyester mining geogrid.It’s a versatile and affordable solution for improving soil stability and reducing erosion. It can be used in various applications, from retaining walls to agricultural landscapes.

Woven Polyester GeogridFeatures

*High tensile strength and low elongation

*Corrosion resistance and aging resistance

*High long-term design strength

*Flexible and durable

*Light weight and drainage function

*Easy to transport and Construct

PVC Coated Polyester Geogrid Applications

*Road widening

*Railway construction

*Bridge ramps reinforcement

*Retaining walls and bridge abutments

*Stabilization of embankment of landslide and buoyancy

*Improving the bearing capacity of loose and unstable soils

*Avoiding of river shore erosion using geogrid retaining wall

*Reinforcing the embankment slope

*Retaining walls reinforced to enhance the overall strength

How To Use Warp Knitted Polyester Geogrid? 

Polyester geogrid should be laid on coarse grained stone of asphalt layer of construction pavement, the original pavement should be leveled first, constructed after finishing, repairing and cleaning, fixed PET geogrid  overlap with special steel nails is needed for ordinary woven polyester geogrid, joint transverse greater than 5 cm, longitudinal greater than 10 cm, PVC coated polyester geogrid treated with asphalt should be laid as little as possible with asphalt adhesive oil, and self-adhesive. The asphalt mixture can be paved and compacted after proper rolling by rubber wheel roller in the construction of knitted polyester geogrid without special steel nails.

Keywords：
Polyester Geogrid 

PET Geogrid  

Woven Polyester Geogrid  

PVC Coated Polyester Geogrid 

Warp Knitted Polyester Geogrid 

Polyester Mining Geogrid  

The Lianyi® Company is the manufacturer of the asphalt reinforcement geogrids,it can be divided into fiberglass geogrid, self-adhesive fiberglass georgid,fiberglass geogrid composite with non woven geotextile and fiberglass geogrid stitched with non woven geotextile.Asphalt fiberglass geogrid is the best solution to solve asphalt pavement cracking and repair asphalt pavement.

What’s Asphalt Geogrids?

Lianyi® Asphalt Geogrids are available in two versions,both for road asphalt reinforcement.First option is fiberglass geogrid and self-adhesive fiberglass geogrid.The second option is a geocomposite made by fiberglass geogrid glued or stitched with PET or PP non woven geotextile which increase the contact surface original layer.

Asphalt Fiberglass Geogrids Main Functions

Reinforcement of asphalt pavement

Fiberglass Geogrids are used to pave roads considerably reduce the reflective cracking on the course,decrease crack propagation speed,control the formation of ruts and lessen the internal stresses caused by temperature changes.Fiberglass Geogrids for asphalt reinforcement are ideal to improve the performances of roads superstructure,thus allowing them to meet the design requirements.Additionally,these fiberglass geogrids improve loads distribution on the wearing course and thus reduce the settlements.

Protection from Reflective Cracks

The use of asphalt fiberglass geogrids in asphaltic pavement system mitigates the risk of reflective crack formation.The fiberglass geocomposites reinforcement layer redistributes stresses horizontally in the overall system,thus preventing stress from concentrating and migrating upward to the surface as a crack.

Prevention of wheel track rutting

The high strength performance of the materials redistributes loads across the entire area of the reinforced road surface.This prevents the formation of wheel ruts,even in high temperature environments.

Asphalt Reinforcement Geogrids Benefits

Safer roads

Greater roadway service life

Thinner asphalt layers with no loss of performance

Reduced costs in construction and long term maintenances

Stronger base cause

Solutions for asphalt reinforcement layer

Load distribution over pavement slab connector

Crack formation resistance

Crack bridging

Advanced cracks formation resistance

Resistance to fatigue deformations

Improvement of the bear capacity

Asphalt Reinforcement Geogrids Application

Asphalt concrete pavement

Asphalt layer

Rehabilitation of old asphalt roads

The Lianyi® Company is the manufacturer of the pp geogrids,specialized geosynthetics widely used in the civil engineering projects to stabilize and reinforce land or separate the substrate layers with varying graining.PP Geogrids are quick and easy to install and allow for the reduction of the use of materials,thus saving investment costs and time.

What’s PP Biaxial Geogrids?

Lianyi® PP Biaxial Geogrids are specifically designed for the stabilization and reinforcement of soil.These Geogrids are expertly manufactured by using different grades of Polypropylene(PP) and are produced using and extrusion and stretching method that yields Geogrids with highly increased tensile properties in both machine and transverse directions.

The manufacturing process produces a unique grid structure,consisting of high strength junctions and stiff ribs.When installed in the soil,the interlocking of the aggregate within the apertures of the Geogrids allows for the effective reinforcement of the soil.This interlock mechanism helps restrain lateral movement of aggregate particles.

How Do PP Biaxial Geogrids Work?

Immediate stabilization and reinforcement of road structure

The semi-stiff composite aggregate scheme allows for the reinforcement of aggregate,even on extremely low load-bearing surfaces.Blocking of the aggregate by the geogrid is a key factor during the pre-compaction of the road foundation,as well as for the further behaviour of the road in lifetime.A high elastic modulus(stiffness of geogrid)is considered to be the main feature which enables effective restriction of movement of the aggregate and as a result,an effective reinforcement of structure.

Blocking and horizontal fixing of aggregate

Thanks to the rigid construction based on non movable nods,which immediately responds to pressure,the PP Biaxial Geogrids prevent aggregate shifts.Used to reinforce the road structure,PP Biaxial Geogrids prevent horizontal displacement and penetration of aggregate grains into the weak substrate and the loss of stability of the foundation layer.

Separation

The PP Biaxial Geogrids placed between the road foundations and the subsoil work as a separator preventing the mixing of the materials with different grain size and load bearing capacity.Geogrids help avoid the penetration of aggregate into the weak substrate and the loss of stability of the foundation layer.

On boggy substructures or in case of materials of unfavourable grain size,where the separating function needs to be enhanced,PP Geocompsoites are used,PP Geogrids combined with non woven geotextile.

PP Biaxial Geogrids Application 

Tar roads

Reinforcement of aggregate substrate layers,reinforcement of embankments and dykes,geosynthetic layers at the base of embankments

Railway

Reinforcement of substructures of the railway tracks,strengthening of railway embankments

Forest roads and technological roads

Construction of dirt roads with extended durability and resistant to the creation of wheel ruts

Temporary roads and working platforms

Quick construction of temporary roads made of unbound aggregate,technological roads,access roads to windfarms,working platforms

Scarps and bridgeheads

PP Geogrids are used in construction of high scarps,bridgeheads and as in reinforced earthworks,construction of vertical retention walls with veneer

Warehouses and carparks

Reinforcement of subsoil requiring higher load bearing capacity,under manoeuvring squares,warehouse storage yards,parking lots