PP Woven Geotextile
1.Excellent mechanical properties: High tensile strength, tear strength, etc., which can stabilize engineering structures.
2.Strong corrosion resistance: Resistant to acids, alkalis, salts, etc., adaptable to complex environments with a long service life. Good water permeability and filtration: Pores can drain water while intercepting soil particles, preventing loss and settlement.
3.Superior weather resistance: Resistant to ultraviolet rays, high and low temperatures, with slow performance attenuation when used outdoors.
4. Low construction cost: Lightweight and easy to lay, with high efficiency and lower material cost compared to traditional ones.
5.Relatively good environmental protection: Little pollution in production, some can be recycled, meeting environmental protection requirements.
Product Introduction
1.Basic attributes
PP Woven Geotextile is a permeable geosynthetic material made primarily from polypropylene through spinning, weaving, or non-woven processes. Its chemical properties are stable, and its molecular structure does not contain polar groups, therefore it has the characteristics of acid alkali and salt corrosion resistance; Physically, the texture is lightweight, with a density lower than water and good flexibility, and can be cut into different sizes according to engineering requirements. Meanwhile, as a polymer material product, its production process relies on processes such as melting and molding of polypropylene resin. The finished product has a certain mechanical strength and porosity, making it a commonly used functional material in civil engineering.
2.Core functions
Reinforcement and strengthening: With high tensile strength and deformation resistance, embedded in soil or structural layers, it can disperse loads, constrain soil displacement, improve the stability of foundations or slopes, and reduce engineering damage caused by settlement and landslides.
Filtering and anti filtering: By using its own uniform pore structure, it achieves the effect of "water passing through soil but not exceeding soil" in water conservancy, road and other engineering projects - allowing water to penetrate smoothly while intercepting soil particles, preventing soil erosion or structural failure caused by the loss of fine particles.
Drainage and water diversion: By utilizing the channels between fibers, excess water in the soil is discharged, reducing pore water pressure, avoiding soil softening due to accumulated water, and ensuring the dryness and stability of the engineering structure.
Isolation and protection: It can separate materials such as sand, gravel, and soil with different particle sizes to prevent mixed pollution, while reducing the erosion of the external environment (such as chemicals and ultraviolet radiation) on the main body of the project and extending its service life.
3.Main features
Strong performance adaptability: Balancing permeability and mechanical strength, it can adjust parameters such as thickness and porosity according to engineering scenarios (such as highways, water conservancy, environmental protection) to meet different functional requirements.
Excellent environmental tolerance: Acid and alkali resistance, aging resistance, can be used for a long time in saline alkali land, humid or outdoor environments, strong ability to resist ultraviolet radiation and high and low temperature changes, slow performance degradation rate.
Outstanding construction and economy: Lightweight texture, convenient transportation and laying, can greatly improve construction efficiency; The raw material (polypropylene) has a wide range of sources, mature production processes, and lower costs than traditional materials such as sand, gravel, and concrete, which can reduce the total project cost.
Good environmental compatibility: Minimal pollution during the production process, some products can be recycled and reused, and will not cause secondary pollution to soil and water bodies, meeting the environmental requirements of modern engineering.
Product Parameters
project | metric | ||||||||||
Nominal strength/(kN/m) | |||||||||||
6 | 9 | 12 | 18 | 24 | 30 | 36 | 48 | 54 | |||
1 | Longitudinal and transverse tensile strength / (kN/m) ≥ | 6 | 9 | 12 | 18 | 24 | 30 | 36 | 48 | 54 | |
2 | Maximum elongation at maximum load in longitudinal and transverse directions/% | 30~80 | |||||||||
3 | CBR top penetration strength /kN ≥ | 0.9 | 1.6 | 1.9 | 2.9 | 3.9 | 5.3 | 6.4 | 7.9 | 8.5 | |
4 | Longitudinal and transverse tearing strength /kN | 0.15 | 0.22 | 0.29 | 0.43 | 0.57 | 0.71 | 0.83 | 1.1 | 1.25 | |
5 | Equivalent aperture O.90(O95)/mm | 0.05~0.30 | |||||||||
6 | Vertical permeability coefficient/(cm/s) | K× (10-¹~10-), where K=1.0~9.9 | |||||||||
7 | Width deviation rate /% ≥ | -0.5 | |||||||||
8 | Unit area mass deviation rate /% ≥ | -5 | |||||||||
9 | Thickness deviation rate /% ≥ | -10 | |||||||||
10 | Thickness coefficient of variation (CV)/% ≤ | 10 | |||||||||
11 | Dynamic perforation | Puncture hole diameter/mm ≤ | 37 | 33 | 27 | 20 | 17 | 14 | 11 | 9 | 7 |
12 | Longitudinal and transverse fracture strength (grab method)/kN ≥ | 0.3 | 0.5 | 0.7 | 1.1 | 1.4 | 1.9 | 2.4 | 3 | 3.5 | |
13 | Ultraviolet resistance (Xenon arc lamp method) | Longitudinal and transverse strength retention rate% ≥ | 70 | ||||||||
14 | Ultraviolet resistance (fluorescence UV lamp method) | Longitudinal and transverse strength retention rate% ≥ | 80 | ||||||||
Product Application
Water conservancy slope protection and river embankment reinforcement are the most mature and widely used scenarios for Polypropylene Woven Geotextile. In modern hydraulic engineering, river embankments and soil slopes are constantly eroded by flowing water, tides, and seasonal rainstorms, leading to common engineering problems such as soil erosion, slope slippage, and foundation subsidence. Traditional single filling protection methods struggle to adapt to long-term harsh water environment erosion, while high-performance PP geotextile effectively solves these pain points with outstanding tensile resistance, isolation stability, corrosion resistance and anti-scouring performance, becoming a core material for water conservancy infrastructure protection and renovation.
Geotextile PP, namely polypropylene woven geotextile, is professionally customized for structural reinforcement and anti-seepage protection of hydraulic projects. Different from ordinary textile materials, it adopts high-strength polypropylene raw materials through precise weaving technology, with uniform texture and stable physical properties. It can maintain structural integrity and service performance in humid, high-pressure and ultraviolet exposed environments for a long time, which is far more durable than ordinary geotextile products, and fully meets the long-term operation standards of municipal and water conservancy projects.
In the specific construction process of river embankment protection, Polypropylene Woven Geotextile is laid between the embankment foundation soil and the outer gravel protective layer. Its compact woven structure plays a key role in isolation and anti-mixing, effectively separating fine soft soil and coarse stone fillers. This avoids the mixing of soil and stone caused by water seepage, prevents the decline of foundation bearing capacity, and fundamentally reduces the risk of embankment hollowing and collapse. At the same time, the high longitudinal and transverse tensile strength of PP geotextile can disperse the lateral water pressure and soil pressure borne by the embankment, constrain soil displacement, and greatly improve the overall stability of the slope.
In terms of seepage control and drainage, Geotextile PP has reasonable and uniform pore structure, which realizes efficient water permeability and soil retention. It can timely discharge the accumulated seepage water inside the embankment, reduce internal water pressure, accelerate soil consolidation, and make the embankment structure more compact and firm. This unique water and soil separation performance avoids the loss of fine soil particles with water flow, effectively protecting the integrity of the embankment foundation.
In addition to structural reinforcement, Polypropylene Woven Geotextile has excellent aging resistance and chemical stability. It is not easy to be corroded by water quality, sediment and soil chemicals in river environments, and can resist ultraviolet radiation and temperature changes in outdoor environments. Compared with ordinary protective materials, PP geotextile significantly prolongs the service life of river embankments, reduces later maintenance costs, and has high engineering application value. At present, Geotextile PP has become a standard supporting material for river regulation, reservoir slope protection, channel renovation and various water conservancy stabilization projects.
Polypropylene geotextile, with its diverse properties, has irreplaceable and important applications in many engineering fields such as water conservancy, transportation, environmental protection, agriculture, and mining. In hydraulic engineering, it safeguards the safety of dams and channels, ensuring the rational utilization of water resources; In transportation engineering, it safeguards the stability of highways and railways, extending the service life of transportation facilities; In environmental engineering, it plays a crucial role in protecting and restoring the environment in areas such as landfill and river management, helping to improve the ecological environment; In agricultural engineering, it provides strong support for agricultural production by improving irrigation efficiency and optimizing crop growth environment; In mining engineering, it balances environmental protection and safety in slag treatment, reducing the impact of mining production on the surrounding environment. It can be said that polypropylene geotextile, by fully utilizing its core functions of isolation, filtration, reinforcement, and drainage, not only provides solid guarantees for the safe, stable, and efficient operation of various projects, but also demonstrates significant value in promoting sustainable development of engineering construction, improving resource utilization efficiency, and protecting the ecological environment. It has become an indispensable and important material in modern engineering construction.
