A new type of geotextile material - high-strength reinforced composite impermeable geomembrane cloth (patent of utility model was obtained on November 18, 2008, patent 200720133641.X). It overcame many demerits in conventional geotextile material--composite impermeable geomembrane cloth, and possesses several features, such as high-strength, high bursting resistance, high permeability coefficient and etc. The tensile strength, anti-tear, CBR bursting resistance value, permeability coefficient and other performance indicators of physical and mechanical properties of this product are higher than that of existing products of ordinary geomembrane cloth. Its strong anti-penetration capability addressed the technical issue that ordinary geomembrane cloth is prone to be burst open when encountered with hard stone materials, which reduces the waste of materials, economizes the costs, improve the effect of water permeability, and ensure the quality of projects. The product can be widely applied in buildings, roads, railways, subways, culverts, tunnels, rivers, dams, water, water supply and drainage, garbage landfills, sewage treatment plants, civil engineering, water conservancy project and environmental engineering
Index comparisons between conventional impermeable geomembrane cloth and patented high-strength reinforced composite impermeable geomembrane cloth:
Impermeable geomembrane |
composite impermeable geomembrane cloth |
High-strength reinforced composite impermeable geomembrane cloth |
|
Weigh g/m2 |
500 |
300 |
500 |
Thickness 2Kpa |
0.5 |
0.5 |
0.5 |
Longitudinal tensile strength N/5cm |
The provisions of≥50 |
The provisions of≥200 |
≥1000 |
Longitudinal elongation at break% |
The provisions of≤400 |
The provisions of≤100 |
≤40 |
Transverse tensile strengthN/5cm |
The provisions of≥50 |
The provisions of≥200 |
≥1000 |
Transverse elongation at break% |
The provisions of≤400 |
The provisions of≤100 |
≤40 |
Anti-seepage coefficientcm/s |
The provisions of≤1.0*10-10 |
The provisions of≤1.0*10-10 |
≤1.0*10-12 |
CBR Bursting resistance valu N/m |
The provisions of≥100 |
The provisions of≥800 |
≥2000 |
Standard |
GB/T17643-1998 |
GB/T17642-1998 |
200720133641.XPatent |
Performance parameters:
Number |
Test items |
Unit |
Index |
Remarks |
1 |
Thickness(2Kpa) |
mm |
0.5(-0.05~+0.05) |
|
2 |
Longitudinal tensile strength |
N/5cm |
≥1000 |
|
3 |
Longitudinal elongation at break |
% |
≤40 |
|
4 |
Transverse tensile strength |
N/5cm |
≥1000 |
|
5 |
Transverse elongation at break |
% |
≤40 |
|
6 |
Anti-seepage coefficient |
Cm/s |
1.0*10-11 |
|
7 |
CBR bursting strength |
N |
≥2000 |
|
Executive standard: 200720133641.X Test Method: GB/T17638-1998 |
||||
Products: polypropylene fiber, geotextile, geocell, geogrid, geomembrane, polyester fiber
