1. Product Description
Composite Geotextiles are made from woven geo-textile of glass fiber (or synthetic fiber) and non-woven PP or polyester geo-textile. Non-woven geo-textile features excellent separation, water permeability and reverse filtration, woven geo textile features excellent performance such as high tensile strength, low elongation percentage and high dimensional stability. The product has good physical and chemical stability, cold resistance and ageing resistance.

2. Process of Composite Geotextiles

Composite geotextiles combine two or more distinct types of geotextiles to create a single, multifunctional product.

Composite geotextiles are formed by bonding or mechanically interlocking different geotextiles, each contributing unique properties and functionalities. The combination of these geotextiles results in a versatile product that can address multiple engineering challenges simultaneously.

2 Product Performance
The product, which is featured by high tensile strength, low elongation percentage, small longitudinal and transverse deformation, high tearing strength, high bursting strength and excellent water permeability & reverse filtration performance, has such functions as water permeability, reverse filtration, reinforcement, separation and protection, etc. It has good corrosion resistance and ageing resistance.

3. Applications

Geo textiles are permeable fabrics made from synthetic materials, such as polypropylene or polyester, which are used to improve soil performance, drainage, filtration, and erosion control in civil engineering and construction projects.

Composite Geotextiles can meet multiple engineering requirements. By combining various functionalities, such as filtration, reinforcement, drainage, and erosion control, composite geotextiles offer efficient and cost-effective solutions for a diverse range of construction and geotechnical applications.

Engineering Application
The product can be widely used for water and soil-related building engineering, such as dike engineering of sea beach, river, reservoir and lake. It can effectively resist sea beat, water level change, prevent soil body loss and foundation deformation, homogenize the stress of dike foundation, and improve the stability of dike foundation.

4. Types of Composite Geotextiles

Filtration and Separation Composite Geotextiles: These composites typically consist of a woven or non-woven geotextile layer for filtration and separation combined with a high-strength geotextile layer for reinforcement. They are used to prevent the mixing of different soil layers, maintain proper water flow, and provide stability to soft or weak soils.

Drainage and Filtration Composite Geotextiles: These composites combine a geotextile layer for filtration with a drainage core, such as a geonet or geocomposite, to facilitate effective drainage of excess water from the soil. They are used in areas prone to water accumulation, such as behind retaining walls or in landfill leachate collection systems.

Erosion Control and Reinforcement Composite Geotextiles: These composites incorporate erosion control geotextiles, which have high porosity and soil retention capabilities, along with a reinforcement geotextile layer. They are employed to stabilize slopes and prevent soil erosion on embankments and riverbanks.

Asphalt Overlay Composite Geotextiles: These composites combine a strong reinforcement geotextile with a non-woven geotextile that acts as a stress-absorbing interlayer. They are used in asphalt overlay applications to retard reflective cracking from underlying pavement layers.