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10th Floor, Block A, Hongcheng International, Dongnanhu Road, Changchun, Jilin, China (Mainland)
Geosynthetic clay liner GCL
Natural sodium bentonite Geosynthetic clay liner GCL
Testing by national Research Center of Testing Techniques for Building Materials.
Detection basis: the standard technolog of waterproof system of beijing's New line's
Metro
Testing no. : 2010A00242
Testing time: April 1 ,2010
Note: 1. the thickness of GCL torlance≤15%
2.The torlance of sodium bentonite pellet in unit area is ±0.5KG/M2
| No. | Properties | Unit | Test standard | Testing standard data | Test result |
| 1 | Bentonite Swell Index | ml/2g | ASTM D5890-2002 | ≥ 24 | 24 |
| 2 | Bentonite Fluid Loss | ml | ASTM D5891-2002 | ≤18 | 15 |
| 3 | GCL Tensile Strength | N/cm | ASTM D6768-2004 | ≥ 60 | 103 |
| 4 | GCL Peel Strength | m/s | ASTM D6496-2004 | ≥400 | 709 |
| 5 | Bentonite Moisture | % | ASTM D4643-2008 | 12% | 9% |
| 6 | GCL Hydraulic Conductivity | m/s | ASTM D5887-1999 | 3.9 x 10 -11 | 3.9 x 10 -11 |
| 7 | GCL Index Flux | m3/m2/s | 5.8 x 10 -9 | 5.8 x 10 -9 | |
| 8 | GCL Bentonite Mass Per Unit Area | g/m2 | ASTM D5993-1999 | ≥4000 toerlance ±0.5KG/M2 | 4500 |
| 9 | Non woven Geotextile Mass Per Unit Area | g/m2 | ASTM D5261-1992 | 206 | 206 |
| 10 | Woven Geotextile Mass Per Unit Area | g/m2 | 111 | 111 | |
| 11 | GCL Internal Hydrated Shear Strength | kpa | ASTM D6243-2006 | 26 | 26 |
| 12 | Assay of Natural Sodium Bentonite | XRD. Ph anion | Natural Sodium Bentonite | Natural Sodium Bentonite |
