Nonwoven PET Filament Geotextile Layer for Road Construction Project in China

CASE STUDY

Location – China

Product(s) – Nonwoven PET Filament Geotextile Layer

Application – Road Construction Project

Specifications of Filament Geotextile Layer for Road Construction Project in America

Total Nonwoven PET Filament Geotextile quantity–73,000 squares meters

Nonwoven PET Filament Geotextile Weight – 200gsm

Nonwoven PET Filament Geotextile Each roll size is 6m*50m

Issue

In road construction, after the pavement is completed, in order to prevent the road surface from being damaged due to dry cracks, water is usually continuously sprinkled on the road surface to keep the road surface moist; if it is in the hot summer, the water will evaporate within a few minutes after sprinkling, the workload is very large.

American customers want to solve this problem. Our team recommends the use of non-woven PET filament geotextile layer, which use non-woven PET filament geotextiles for excellent filtration, drainage, isolation, reinforcement, and protection. It has light weight and high tensile strength, good permeability, high temperature resistance, freezing resistance, aging resistance and corrosion resistance. Non-woven PET filament geotextile geotextile layer plays an important role in road maintenance. Laying non-woven PET filament geotextile geotextile flat on the road surface can not only effectively prevent the rapid evaporation of water, but also if there is no In the production process of spinning PET filament geotextile, anti-purple and other related additives are added, which can also play a role in sun protection.

Solution

Non-woven PET filament geotextile layer is widely used in road construction. It strengthens soil by increasing its tensile strength. It is used as a quick dewatering layer in the roadbed, and the non-woven PET filament geotextile needs to maintain its permeability without losing its separation function. All in all, the use of non-woven PET filament geotextile layer is to prevent soil erosion and prevent roads from collapsing due to rain erosion.

Non-woven PET filament geotextiles for road construction, geotextiles are used together with foundations, soil, rocks, soil or other building materials, and use the characteristics of textiles to reinforce, protect, drain, isolate, filter, contain and shape the soil. Improve the quality of the project, prolong the life of the project, shorten the construction time, and reduce the cost of the project.

Non-woven PET filament geotextile layer is made from raw continuous polyester filaments through needle punching and thermal bonding processes to form a strong fabric that maintains its dimensional stability and resists damage from construction stress.  non-woven PET filament geotextile has the best performance per unit weight, with high tensile strength and puncture resistance, good acid and alkali resistance, excellent drainage and anti-aging performance, etc.

Benefits

The non-woven PET filament geotextile layer is thicker, which can ensure the three-dimensional void ratio of the non-woven PET filament geotextile, which is beneficial to the establishment of excellent hydraulic performance indicators.

The bursting strength of non-woven PET filament geotextile layer has great advantages, especially for retaining walls and roadbed reinforcement.

The tensile index values of the non-woven PET filament geotextile layer is higher than the industry standard, and it is an excellent geotechnical reinforcement raw material.

According to reports, non-woven PET filament geotextiles of various specifications have been popularized in the construction of asphalt highways and asphalt pavement repairs. The production process of non-woven PET filament geotextiles and the actual operation of road construction have been standardized, and have been Demonstrate strong competitiveness and better technical and economic efficiency.

Road laying method of non-woven PET filament geotextile layer

Use manual rolling; the surface of the fabric should be leveled, and a moderate allowance for deformation processing should be left.

The laying of long-filament or short-filament geotextiles generally adopts lap joints, stitching and welding. The width of stitching and welding is generally more than 0.1m, and the lap width is generally more than 0.2m. Geotextiles that may be exposed for a long time should be welded or stitched.

From the above overall view, the application of filament geotextiles in high speed has been well promoted, which in turn provides a good guarantee for saving project costs and improving the service life of the project. 

Summary

Non-woven PET filament geotextile layer has played an important role in providing working solutions for the construction or improvement of secondary unpaved roads, haulage roads, access roads and roads in developing areas. In most cases, geotextiles are placed between soft, fine-grained subgrade soils with sand or stone aggregates on top. Beginning in the 1970s, acceptance of this particular application led to a massive increase in the use of geotextiles. Based on field measurements of embankment stability (e.g., from California bearing ratio, shear strength, or modulus of elasticity tests, etc.), relatively simple calculations of the reduction in aggregate thickness required often indicate net cost savings from the use of geotextiles. Additionally, the separation feature of the non-woven PET filament geotextile prevents aggregate from mixing into the underlying subgrade, improving long-term performance.

Non-woven PET filament geotextile layer is one of the fastest growing sectors in the technical textiles market and is expected to maintain growth in the future. Synthetic fibers dominate the woven geotextiles market, but the use of natural fibers cannot be ignored, especially in developing countries. In addition, the standardization of certain properties and test methods will provide more reliable technical data and design methods for geotextiles. This will eventually lead to the design of geotextiles through the “design by function” route. As a result, the geotextile will more effectively perform its stated function over the life of the project. The combination of geotextile mechanics and soil mechanics can effectively solve countless construction and design problems.

Geotextiles are further divided into woven geotextiles and non-woven geotextiles. The former is woven from monofilaments or multi-strands, or woven from flat filaments cut into films; Formed into a mat, and then mechanically entangled or thermally bonded, or chemically bonded.

Non-woven PET filament geotextile layer can replace traditional engineering materials and construction methods, the construction is safer, and it contributes to environmental protection. It can solve basic problems in engineering construction more economically, effectively and permanently. Filament geotextiles have good Excellent mechanical function, good water permeability, anti-corrosion, anti-aging, has the functions of isolation, reverse filtration, drainage, protection, stabilization, reinforcement, etc. The non woven geotextile layer can adapt to uneven base, resist construction external force damage, small creep. The original function of the pavement can still be maintained under long-term load.

The non-woven PET filament geotextile is thicker, which can ensure the three-dimensional void ratio of the non-woven PET filament geotextile, which is conducive to the realization of excellent hydraulic performance; its bursting strength has great advantages, especially suitable for retaining walls and embankment reinforcement. The indicators of non-woven PET filament geotechnical pull force all exceed the standard, and it is an excellent geotechnical reinforcement material.