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What’s Woven Polyester Geogrid?
Lianyi®Woven Polyester Geogrid is an engineered woven geogrid that has exceptionally high strength characteristics at low levels of strain.Woven Polyester Geogrid is additionally coated with a polymer that provides high resistance to degradation in soil environments as well as providing additional UV and mechanical damage protection to the fibers.Woven Polyester Geogrid may be constructed with tensile strengths up to 1000 kN/m.Strains generated at ultimate tensile strength are typically less than 12%.Woven Polyester Geogrid has the ability to carry significant loads imposed upon the product from a range of short term as well as very long-term soil reinforcement applications, that has a demonstrated history of performance both here in China and around the world. The product may be manufactured for site specific requirements. The rolls are available in wide widths up to 5.2m to minimise wastage from overlap requirements.
Classification Of Woven Polyester Geogrid
Features Of Woven Polyester Geogrid
*High short-term tensile strength at break: from 20kN/m to 1000kN/m
*Low deformation om short-term break
*Excellent yield performance
*Optimal interaction with all types of soils due to its structure
*Easy and fast installation
*The union between the weft and the warp is perfect,preventing tears
Applications Of Woven Polyester Geogrid
*Steepened reinforced slopes
*Retaining walls
*Veneer reinforcement for landfills
*Soil reinforcement over piled foundations
*Support over voids
*Capping of tailings ponds
*Basal reinforcement of soft soils
*Other applications where soil will benefit from the inclusion of a tensile element for additional load carrying capacity
Keywords：
1. PET Geogrid
What’s Polyester Geogrid?
Lianyi®Polyester Geogrid(PET Geogrid) is a geosynthetic material mainly made of polyester (polyester fiber) yarns with PVC coating,which is widely used in the fields of reinforcement, strengthening and protection in civil engineering.
Classification Of Polyester Geogrid
Features Of Polyester Geogrid
*High strength: Polyester fibers have a relatively high tensile strength, which can effectively disperse loads and enhance the stability of soil.
*Corrosion resistance: Resistant to acids, alkalis and chemical corrosion, suitable for complex geological environments.
*Creep resistance: Small deformation under long-term loading, and its stability is superior to that of ordinary plastic grating.
*Good flexibility: Adapt to foundation deformation and reduce the risk of cracking.
*Light weight: Convenient for construction, low transportation and laying costs.
Applications Of Polyester Geogrid
*Highway/railway subgrade: Distribute loads to prevent uneven settlement.
*Slope reinforcement: It combines with soil to form a stable structure and prevent landslides.
*Retaining wall: As a reinforcing material, it enhances the shear strength of the wall.
*Soft soil foundation treatment: Reduce settlement and enhance bearing capacity.
*Landfill site: Used for base reinforcement and anti-seepage system protection.
Production process Of Polyester Geogrid
*Raw material: High-strength polyester filament (PET) yarns.
*Process: It is woven into a mesh structure by a warp knitting machine and then treated with a coating (such as PVC or asphalt) to enhance durability.
*Type: It is divided into unidirectional (unidirectional force) and bidirectional (bidirectional force) grating.
Polyester Geogrid Key Points of Construction
*Laying preparation: Clean the base layer to ensure it is flat and free of sharp objects.
*Laying direction: Determine the unidirectional or bidirectional force direction according to the design.
*Lap length: Usually 10-15cm, it needs to be fixed with special connectors.
*Filling material selection: Coarse-grained soil is preferred and compacted in layers (each layer thickness ≤30cm).
*Avoid long-term exposure to ultraviolet rays: Cover and fill soil in a timely manner after construction.
Precautions Of Polyester Geogrid
*Storage: Avoid direct sunlight to prevent aging.
*Construction temperature: Polyester may become brittle at low temperatures, so construction should be avoided in extremely cold environments.
*Design basis: The strength, width and node strength should be selected according to the engineering requirements.
Keywords：
1. PET Geogrid
What’s PP Continuous Filament Nonwoven Geotextile?
Lianyi®Polypropylene continuous filament needle punched nonwoven geotextile is formed by using high-quality polypropylene fiber as the main raw material through processes such as spinning, slit drawing, web laying, spraying, unique elliptical needling, and stretching and shaping. PP continuous filament needle punched nonwoven geotextile features excellent chemical properties, acid and alkali resistance, and physical and mechanical performance.PP needle punched nonwoven geotextile has high strength, large elongation, and high puncture and tear strength.PP nonwoven geotextile has a very broad range of application scenarios in projects such as railways,water conservancy, highways, airports, landfill sites, and tailings ponds.
Classification Of PP Continuous Filament Nonwoven Geotextile
*Polyester Continuous Filament Non Woven Geotextile
Features Of PP Continuous Filament Nonwoven Geotextile
*The world’s first 6.5-meter ultra-wide PP continuous filament needle punched nonwoven geotextile
reduces splicing, facilitates construction, and can lower the overall project cost
*The specific gravity of PP (polypropylene) non woven geotextile at room temperature is 0.91, while that of PET (polyester) non woven geotextile is 1.38. Under the same unit area mass conditions, polypropylene non woven geotextile contains more fibers, has more consolidation points, and has higher mechanical properties
*PP continuous filament needle punched nonwoven geotextile’s single-fiber strength is high,and the overall physical and mechanical indicators are higher than those of polyester non woven geotextiles
*PP continuous filament needle punched nonwoven geotextile has good chemical resistance and can be stably used within the PH range of 2 to 13. In engineering polypropylene continuous filament non woven geotextiles that come into direct contact with cement, fly ash, lime, etc., it can be stably used for a long time.Traditional polyester non woven geotextiles will hydrolyze until they disappear and completely lose their function
*Polypropylene continuous filament needle punched non woven geotextile has excellent freeze-thaw resistance and is suitable for use in high-cold permafrost areas
*Compared with traditional polyester non woven geotextiles , polypropylene non woven geotextiles are environmentally friendly, durable and pollution-free
Keyword：
1. Geotextile
Lianyi® Asphalt Grid is fiber glass yarns manufactured for asphalt reinforcement of paved surfaces.Asphalt grid is designed to prevent reflective cracking and reinforce asphalt pavements,providing strength and rigidity in a high strength glass fiber grid .
Asphalt grid is typically installed under the pavement’s wearing course and is designed to reinforce the surface course.It dissipates induced tensions which can lead to the risk of cracks,and can delay their appearance on the surface.
Asphalt grid is an engineered geogrid that is suitable for flexible road pavements,asphalt pavement and overall soil reinforcement.When properly installed,it offers a long design life,excellent performance and predictable in suit behaviour.
Classification Of Asphalt Grid
*Self Adhesive Fiberglass Geogrid
*Lowers maintenance costs
*Repairs severely cracked roads and postpones complete reconstruction
*Dramatically extends the life of roads, runways and parking lots
*Open aperture design promotes aggregate interlock between paving courses, greatly decreasing shear potential that is common with paving fabrics
*High stiffness, high modulus of elasticity, low elongation
*Effective bonding of grid during installation to leveling the prepared surface or course with patented adhesive backing(standard practice of use of tack coat is recommended to enhance or promote bonding between lifts of asphalt layers)
*Ease of constructability allows for asphalt grid installation and immediate placement of overlying pavement
*Asphalt reinforcement
*Reduce reflective cracking
*Prevent traffic induced shearing
*Extend road life
Keyword：
1. Asphalt Fiberglass Geogrid
Lianyi® PET Geogrid is a high strength coated geogrid manufactured from high tenacity polyester(PET) yarns,knitted to form a structured grid.PET Geogrid is used to reinforce soils where extremely high tensile strength with low elongation is required.The range of PET Geogrid is from 20kN/m-1000kN/m suitable for solving complex engineering problem.
PET Geogrid strength and stiffness are affected both by temperature and by rate or duration of loading.Therefore,it is important that standard methods of tensile testing are used,so that temperature and strain rate are defined.
PET Geogrid’s tensile strength and high molecular weight offer both vertical and horizontal soil reinforcement,and it’s proprietary UV-stabilized coating compound provides enhanced durability against the elements.
*Low elongation (below 13%) and high tensile strength (up to 1000 kN/m)
*Width up to 6.0m
*Industry leading stress-strain values with low elongation
*Improves modulus values of pavement base layers
*Design lifespan of 100 years
*Reinforced soil walls
*Embankment reinforcement
*Retaining structures
*Below structural foundations
*Basal reinforcement
*Piling platforms
*Reinforced steep soil slopes
*Subgrade improvement
Keywords：
1. PET Geogrid
Lianyi® PET Grid is a high performance pavement reinforcement geogrid that is engineered with industry leading stress-strain values to provide higher tensile strength resistance at low elongation and strength of 20kN/m to 1000kN/m.Coupled with a high degree of interaction with the infill material,PET grid offers the best value for pavement reinforcement when compared with any other competitive solution.
PET Grid is manufactured of polyester yarns that have a high molecular weight and tensile strength.These yarns are knitted into a dimensionally stable network of apertures to form a grid shape which offers tensile reinforcement to the soil in both the vertical and horizontal directions.PET grid is coated with black PVC coating to provide further chemical and mechanical benefits that preserve its durability in any environment.
*6 meter width for low overlap and reduced wastage
*Improves modulus values of pavement base layers
*Reduction in pavement crust thickness
*Easy installation,speedy construction and smaller carbon footprint
*Save up to 15-20% cost compared to conventional methods
*Basal reinforcement over soft soils
*Pavement reinforcement and optimization
*Below structural foundations
*Load transfer platform and void spanning
*Landslide repair
*Piling platforms
*Reinforced steep slopes
*Reinforced Foundations
Keywords:
1. PET Geogrid