China Geomembrane for Environmental Projects Waterproof

HDPE Geomembrane for Environmental Projects water conservancy projects landfill mining canal

The manufacturing of geomembranes begins with the production of the raw materials, which include the polymer resin, and various additives such as antioxidants, plasticizers, fillers, carbon black, and lubricants (as a processing aid). These raw materials (i.e., the "formulation") are then processed into sheets of various widths and thickness by extrusion, calendering, and/or spread coating.

The US market is currently divided between HDPE, LLDPE, fPP, PVC, CSPE-R, EPDM-R and others (such as EIA-R), and can be summarized as follows:[] (Note that M m2 refers to millions of square meters.)

high-density polyethylene (HDPE) ~ 35% or 105 M m2linear low-density polyethylene (LLDPE) ~ 25% or 75 M m2polyvinyl chloride (PVC) ~ 25% or 75 M m2flexible polypropylene (fPP) ~ 10% or 30 M m2chlorosulfonated polyethylene (CSPE) ~ 2% or 6 M m2ethylene propylene diene terpolymer (EPDM) ~ 3% or 9 M m2

The majority of generic geomembrane test methods that are referenced worldwide are by the ASTM International|American Society of Testing and Materials (ASTM) due to their long history in this activity. More recent are test method developed by the International Organization for Standardization (ISO). Lastly, the Geosynthetic Research Institute (GRI) has developed test methods that are only for test methods not addressed by ASTM or ISO. Of course, individual countries and manufacturers often have specific (and sometimes) proprietary test methods.

Made from special virgin resin by blow film process
Specification of HDPE Geomembrane for Environmental Projects water conservancy projects landfill mining canal:
I. Thickness: 0.3mm-3. Omm
2.4m-9m in roll width, the length as client ' s request
Property of HDPE Geomembrane for Environmental Projects water conservancy projects landfill mining canal:
I. Good flexibility
2. For service temperature range: -700C-+1IOoC
3. Corrosion resistance, aging resistance
4. Excellent environmental stress cracking resistance property
5. High tensile strength and elongation
Application of HDPE Geomembrane for Environmental Projects water conservancy projects landfill mining canal:
I. Municipal environmental projects, water conservancy projects
2. Landfill cap(closures), mining heap leach pads
3. Pond liner, canal linings, tank linings, raw water treatment reservoirs, retention ponds
4. Waste water treatment lagoon, secondary containment
Production standard:
I. GB/T17643-2011
2. CJ/T234-2006
3. GRI-GM13
Physical Properties

The main physical properties of geomembranes in the as-manufactured state are:

Thickness (smooth sheet, textured, asperity height)DensityMelt flow indexMass per unit area (weight)Vapor transmission (water and solvent).Mechanical Properties

There are a number of mechanical tests that have been developed to determine the strength of polymeric sheet materials. Many have been adopted for use in evaluating geomembranes. They represent both quality control and design, i.e., index versus performance tests.

tensile strength and elongation (index, wide width, axisymmetric, and seams)tear resistanceimpact resistancepuncture resistanceinterface shear strengthanchorage strengthstress cracking (constant load and single point).

No.Item Test Value0.75mm1.0 mm1.25 mm1.5 mm2.0 mm2.5 mm3.0mm1Minimum Density(g/cm³)0.9392Tensile PropertyStrength at yield,N/mm11151822293744Strength at break ,N/mm20273340536780Elongation at yield,%12Elongation at break,%7003Tear ResistanceN931251561872493113744Puncture Resistance N2403204004806408009605Stress Crack Resistance, hrs3006Carbon Black Content, %2.0-3.0Carbon Black Dispersion1 or 27Standard OTI Min100High Pressure OTI Min4008Impact Cold Crack at -70°C Pass9Water vapor permeability≤1.0x10-13 (gNaN/cm2 .s.Pa)10Dimensional Stability (%) ±2

FAQ
What is geosynthetics ?

Geosynthetics form a perfect erosion control fabric used extremely widely in civil engineering to stabilize and reinforce slopes and soil under or next to roads, railways, dams, water reservoirs etc.. They can be easily applied which minimizes the time of construction, as well as they limit the resources and materials necessary.

What kinds of geosynthetics we have ?

Non-woven geotextile, geogrids, geocells, GCL, Geomembranes, Geonets, Geocomposites etc .

What is the geosynthetics used for ?

Hydraulic
Lagooning and Water Treatment, Ornamental Ponds, Golf Courses
Aquaculture and Desalination,Water Lagoons,Tanks, Reservoirs, Liquid Waste,Floating Cover Solutions, Drainage and Filtration

Environment
Tailing ponds, Leach mining,Landfills,Landfill Capping,Protection against corrosion,Vertical Barriers

Civil Works
Erosion Control,Secondary Containment,Tunnels,Linear and Surface Works,Consolidation of Margins,Soil Reinforcement,Soil Separation.
Building - Parkings,Roofing,Soundproofing

Area
Application of Geosynthetics HydraulicLagooning and Water Treatment, Ornamental Ponds, Golf Courses Aquaculture and Desalination Water LagoonsTanks, Reservoirs, Liquid WasteFloating Cover SolutionsDrainage and FiltrationShading Cover SolutionsEnvironmentTailing ponds, Leach mining,Landfills,Landfill Capping,Protection against corrosion,Vertical BarriersCivil WorksErosion Control, Secondary Containment, Tunnels,Linear and Surface Works,Consolidation of Margins,Soil Reinforcement,Soil Separation.BuildingParkings,Roofing,Soundproofing building