Robust & Permeable Non Woven Polypropylene Geotextile

Product Overview

In geotechnical engineering, 65% of foundation failures are directly related to moisture migration and interlayer mixing. Our Robust & Permeable Non-Woven Polypropylene Geotextile employs a three-layer composite needle-punching process, controlling its longitudinal and transverse strength ratio between 1.2 and 1.5, significantly superior to the 1.8-2.5 ratio of conventional products. This unique structural design enables it to exhibit more stable deformation characteristics under multi-directional stress. As a Geotextile Filter China Manufacture certified by both ISO 9001 and 14001, we maintain complete raw material traceability records for each production batch, ensuring end-to-end quality control from polymer particles to finished fiber web.

Performance Characteristics and Engineering Advantages

According to data from third-party testing institutions, this product exhibits excellent characteristics in long-term creep tests: under 60% of the rated load, the deformation rate does not exceed 5% after 12,000 hours, providing crucial assurance for the long-term stability of engineering structures.

Mechanical Properties: Its cross-laid web technology results in anisotropic fiber distribution, maintaining vertical permeability while increasing trapezoidal tear strength to 1.8 times that of conventional products. With an equivalent pore size of 0.08-0.2mm, this robust & permeable non-woven polypropylene geotextile maintains a high conductivity of 2.0s⁻¹.

Hydraulic Properties: By adjusting fiber fineness and needle density, we have achieved an optimal balance between permeability and filtration accuracy. In gradient load tests, when the vertical pressure increases from 10kPa to 200kPa, the permeability coefficient decay rate is controlled within 35%, significantly better than the industry standard decay limit of 50%.

Durability: The added carbon black stabilizer content is strictly controlled at 2.5%±0.3%, ensuring that after 90 days of exposure to strong ultraviolet radiation in the Middle East (annual radiation exceeding 6000MJ/m²), its tensile strength retention rate remains above 85%. This geotextile nonwoven fabric, after 20 years of service in extreme soil environments with pH values ranging from 3 to 11, exhibits performance degradation of no more than 15% of its initial value.

In practical engineering applications, this robust and permeable non-woven polypropylene geotextile has proven its value: in the Lianyungang-Yancheng Expressway project, sections using this product as a release layer showed a deflection increase of only 0.12 mm after 5 years of operation, far exceeding the 0.35 mm increase in the control section. As professional non-woven geotextile suppliers, we recommend laying it immediately after the subgrade compaction reaches 93%, which can effectively reduce the risk of later settlement by up to 40%.

Technical Parameters

This product strictly adheres to ASTM, ISO, and GB/T standards for quality control. Key parameters are as follows:

Test Item | Standard | Unit | Specification

Unit Area Mass | ISO 9864 g/m² | 100 | 150 | 200 | 250

Thickness (2kPa) | ISO 9863 mm | 1.8 | 2.5 | 3.2 | 4.0

Tear Strength | ASTM D4632 kN/m | 4.5 | 8.0 | 11.0 | 14.5

Tear Strength | ASTM D4533 N | 350 | 550 | 800 | 1100

CBR Bursting Strength | ASTM D6241 kN | 0.8 | 1.5 | 2.2 | 2.9

Vertical Permeability Coefficient | ASTM D4491 cm/s | 0.3 | 0.25 | 0.2 | 0.15

Equivalent Pore Diameter O90 | ASTM D4751 mm | 0.10 0.12 0.15 0.18

Note: The 200g/m² specification product successfully withstood the installation conditions of 8 tons of crushed stone being directly thrown in a deep-water port project in Southeast Asia, with the breakage rate controlled below 2%.

Engineering Application Areas

This Non-Woven Polypropylene Geotextile has proven its reliability in several major infrastructure projects:

Transportation Engineering: In the expansion project of the Shanghai-Nanjing Expressway, this product was used as a separation material between the old road base and the newly built asphalt surface layer, effectively inhibiting the development of reflective cracks. Observational data showed that the crack density decreased from 35 per kilometer to 9.

Hydraulic Engineering: As a Geotextile Filter, it was applied to the reinforcement project of the lower Yellow River embankment. Its gradation design enabled it to maintain stable reflective filtration function even in soil with a silt content as high as 45%. After three flood seasons, the seepage flow on the back slope decreased by 62%.

Environmental Engineering: In the Suzhou River remediation project, this Geotextile Nonwoven Fabric served as a drainage acceleration layer in the sludge solidification site, reducing the sludge solidification time from the designed 180 days to 125 days.

Packaging and Transportation Guarantee

We adopt industrial-grade packaging standards: first, a triple waterproof wrapping with high-strength PET stretch film, then an outer layer of 0.5mm thick woven fabric, and finally secured to a solid wooden pallet with steel straps. This packaging solution has been tested and can withstand wind pressure up to level 12 and rainfall impacts of 80mm per hour. As a Geotextile Filter China Supplier with 20 years of experience in the industry, we have established a logistics network covering major ports worldwide, supporting various trade terms such as FOB and CIF, with an average delivery cycle controlled within 21 days.

Company Qualifications and Technical Services

Our laboratory is equipped with an Instron Universal Testing Machine (USA) and a Leica microscope analysis system (Germany), capable of performing a full range of tests from raw material melt index testing to finished product creep performance testing. Our technical team comprises five geotechnical engineers with over 15 years of experience, providing clients with comprehensive technical services from material selection to construction guidance. Of the 187 projects completed last year, we provided customized solutions for 32 special conditions, including frost heave-resistant designs for high-altitude and cold regions and salt corrosion-resistant formulations for coastal areas. Choosing to partner with professional non-wooden geotextile suppliers means receiving added-value technical services beyond the products themselves.