Polypropylene Composite Geotextile

Polypropylene Composite Geotextile‌ is an integrated material manufactured by bonding a polypropylene-based geotextile (short-fiber/long-filament needle-punched nonwoven, or woven/braided fabric) with other functional geosynthetic layers (such as HDPE/PE geomembranes, geogrids, or drainage nets) through composite processes including thermal lamination, needle-punching, or adhesive bonding. The purpose is to combine multiple functionalities into a single product (e.g., impermeability + protection, reinforcement + filtration, drainage + separation), thereby eliminating the drawbacks associated with installing multiple separate layers.

I. Core Performance Indicators‌

· Mechanical Properties‌: Tensile strength, tear/puncture resistance, puncture resistance, and grab strength.

· Hydraulic Properties‌: For impermeable types, an extremely low permeability coefficient is required; for filtration types, the equivalent opening size must be strictly controlled.

· Durability‌: Resistance to UV radiation, acids and alkalis, and microbial degradation, as well as creep performance.

· Construction Parameters‌: Roll width, unit weight (mass per unit area), seam strength, and the reliability of field welding or sewing.

‌II. Typical Engineering Applications‌

‌· Hydraulic Engineering‌: Reservoirs, canal anti-seepage liners, dam slope protection, cofferdams.

‌· Environmental Engineering‌: Municipal solid waste / hazardous waste landfills, leachate collection and drainage systems, wastewater pond lining.

‌· Transportation Engineering‌: Reinforcement of soft subgrades for highways and railways, pavement crack prevention, protective layers for tunnel drainage boards.

· ‌Municipal Engineering‌: Underground utility tunnels, artificial lakes, landscape water feature liners.