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Testing Standards Tips: Comparison of Water Vapor Permeability Coefficient vs. Permeability Coefficient of Geosynthetics
Keywords: Geosynthetics; Water Vapor Permeability Coefficient; Permeability Coefficient; Testing Standards; HDPE Geomembrane
Zhonglong Environmental Geosynthetics – Specifications of Drainage Materials
Sichuan Zhonglong Environmental Co., LTD specializes in manufacturing premium virgin-grade geosynthetic materials, including products for seepage control, drainage, and road reinforcement. This article primarily introduces the common sales specifications of our seepage control products.
Related products: Non-woven Geotextiles, Triaxial Composite Geonet Drain, Siphon Drainage Board
Zhonglong Environmental Geosynthetics – Specifications of Anti-Seepage Materials
This article primarily introduces the common sales specifications of our seepage control products. Including HDPE Geomembranes, Composite Geomembranes, GCL, Waterproof Board (Sheet), adhesive Waterproof Board
What Are the Key Differences Between HDPE & LDPE Geomembranes?
In particular, HDPE and LDPE geomembranes look very similar as primary anti-seepage layers. This point often leads to some unnecessary misunderstandings. So this article explains their shared features and critical differences...
Related products: HDPE Geomembrane, LDPE Geomembrane
Nonwoven Staple Fiber Geotextile Display | PP/PET | Zhonglong
As a one-stop geosynthetics manufacturer, Sichuan Zhonglong Environmental Protection has its own nonwoven staple fiber geotextile production line. Zhonglong's staple fiber geotextile is made from PP or PET fibers as raw materials...
Related product: Staple Fiber Geotextile
What is Reinforced Geotextile? Geotexitle-Geogrid Composite
Zhonglong Reinforced Geotextiles (Geogrid-Geotextile Composite) are consist of PP (polypropylene) staple geotextiles and geogrids by heat-laminating, which forming a regular mesh-fabric composite structure on the surface.
Zhonglong Plastic Geogrid Instruction and Display
Geogrid is a geosynthetic material characterized by a regular grid-like structure with open apertures, formed by intersecting ribs that provide high tensile strength. It is primarily used to reinforce soil, aggregate or other geotechnical materials by interlocking with surrounding particles, to improve load distribution and stability.
Related products: PP Geogrid
Zhonglong Siphon Drainage Board Display
Siphon Drainage Board is a high-performance geocomposite drainage system engineered with precision-molded cupules that activate vacuum-driven siphoning upon water saturation, which features energy-free fluid management.
Related product: Siphon Drainage Board
HDPE Geomembrane Tips: Break Elongation Test
"Break Elongation" has always been one of the most critical indicators for HDPE geomembranes, with both GB/T 17643-2025 and GRI-GM13 2016 requiring ≥700%. This indicator is directly related to whether HDPE geomembranes can withstand the deformation of the substrate caused by significant external forces under extreme long-term service conditions...
Relate product: HDPE Geomembrane
The Upstream Crude Oil Prices for Geosynthetic Materials Have Begun to Decline
Since March of this year, the international market has been in constant turmoil. Geopolitical tensions have caused a sharp surge in global crude oil prices, triggering a chain reaction across every link in our industry...