Sheet Drainage
See larger image: Sheet Drainage
Product Details
The integrated non-woven geotextile covering the dimples protects soil particles blocking the drainage sheet, creats an air gap for reliable ventilation, with its dimple structure effect captures and transports high water volumes and resists high loads from earth and formwork!
Specification, properties and test basis of whole-type hot-melt plastic drainage RZPSB//(New Type)
Serial No. | Items | Unit
| Hot-melt composite drainage sheet Specification | Test basis | |||||
Type and Specification | Test Conditions | ||||||||
No.1 | Physical properties | Geometry size | Width | mm | 98±1 | 98±1 | 98±1 | JTJ/T257-96 | |
Thickness | mm | ≥4.5 | 5.0 | 5.5 | Ibid | ||||
No.2 | Material | Wick sheet | Modified polyolefin | ||||||
Membrane | Special non-woven | ||||||||
g/ m2 | 100 | 100 | 100 | GB/T13762-1992 | |||||
No.3 | Drainage composite body quality | g/m | 120 | 140 | 160 | GB/T13762-1992 | |||
No.4 | Composite body Mechanical properties | Composite body lengthways tensile strength(dry basis) | kN/ Width | ≥2.5 | 2.8 | 3.0 | when the elongation is10% | JTJ/T257-96 | |
No.5 | Composite body lengthways water flow(unbent) | cm3/s | ≥60 | 70 | 80 | lateral pressure :350kPa,i=1 | JTJ/T257-96 | ||
No.6 | Composite body lengthways water flow(bent) | cm3/s | ≥40 | 50 | 60 | lateral pressure :350kPa,i=1 | refer to European Standard CEN/TC 288 W1 00288012:2004 | ||
No.7 | Composite body permeability(transverse) | 1/s | ≥1.0 | ≥1.0 | ≥1.0 |
Test after Immersion in water 24 hours | Standards for scientific research | ||
No.8 | Composite body tongue-shaped tear strength(lengthways) | N | ≥60 | 70 | 80 | refer to GB/T39172-1997 | |||
No.9 | Composite body puncture strength | N | ≥400 | 450 | 500 | SL/T235-1999 | |||
No.10 | Composite body fold bending resistance performance | The drainage sheet does not rupture after it is folded five times | Specimen size:100×50mm
| refer to GB/T17688-1999 or Standards for scientific research | |||||
No.11 | Membrane properties | Membrane permeability | cm/s | 5×10-3 | Test after Immersion in water 24 hours | JTJ/T257-96 | |||
No.12 | Membrane apparent opening size | μm | <75 | O95 | JTJ/T257-96 | ||||
No.13 | Membrane tensile resistance | dry basis(lengthways)
| N/cm | 30 | when the elongation is10% | JTJ/T257-96 | |||
wet basis(transverse) | 25 | when the elongation is10% | |||||||
Note: The typeof drainage sheet is suitable for the depth below 15 m; and the typeof drainage sheet is suitable for the depth below 25 m.
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