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 |