Special waterproof membrane for railway tunnel
The realization of the suspension arrangement without penetrating nails can greatly simplify the construction difficulty of traditional waterproof materials in the tunnel, improve the laying quality and laying efficiency, shorten the construction period, greatly reduce the comprehensive cost of the project, and have a strong market competitive advantage.
Classification:
Contact number: 0086-18853141100
Contact E-mail: 18615171742@163.com
Business consultingDetailed introduction
Hanging type tunnel special waterproof board is a new type of tunnel special waterproof material developed and innovated by our company. It can realize one-time completion of hanging type without penetrating nail construction, which can greatly simplify the construction difficulty of traditional waterproof materials in tunnels, improve the laying quality and efficiency, shorten the construction period, greatly reduce the comprehensive project cost, and have strong market competitive advantages.
Product Series
Separate waterproof board: geotextile and sling worker membrane board are laid in layers
Composite waterproof board: geotextile and geomembrane are integrally combined, point-type and strip-type, with splicing welds at the edge of the product, and geotextile is equipped with sling, which can be laid on site as a whole and completed at one time.
Product specifications
Polyester needle-punched geotextile: 300-400 g/m2PE/EVA/ECB/ECD Synthetic Resin
Coil thickness: 0.8,1.0,1.2,1.5,2.0mm
Product width
2-4m
Product length
According to user requirements
Technical performance
To achieve the technical indicators specified in the GB18173.1-2012 standards
Scope of application
Railway tunnels, highway tunnels, subways, industrial and mining and various municipal underground projects
Special EVA waterproof material for tunnel GB/T18173.1-2012
| Serial Number | Project | Unit | Technical indicators | Remarks | |
| 1 | Tensile strength | Normal temperature (23 ℃)≥ | Mpa | 16 | |
| High temperature (60 ℃)≥ | Mpa | 6 | |||
| 2 | Elongation at break | Normal temperature (23 ℃)≥ | % | 550 | |
| High temperature (60 ℃)≥ | % | 350 | |||
| 3 | Tear strength ≥ | KN/m | 60 | ||
| 4 | impervious to water | 30min | 0.3MPa No leakage | ||
| 5 | low temperature bending | / | No crack at -35 ℃ | ||
| 6 | Heating expansion and contraction amount | Extension ≤ | mm | 2.0 | |
| Shrinkage ≤ | mm | 6.0 | |||
| 7 | Hot air aging (80 ℃ × 168h) | Retention rate of tensile strength ≥ | % | 80 | |
| Retention rate of elongation at break ≥ | % | 70 | |||
| 8 | Alkali resistance [saturated Ca(OH)2 Solution 23 ℃× 168h] | Stickiness and strong separation rate ≥ | % | 80 | |
| Retention rate of elongation at break ≥ | % | 90 | |||
| 9 | artificial climate aging | Tensile strength retention ≥ | % | 80 | |
| Retention rate of elongation at break ≥ | % | 70 | |||
| 10 | bond peel strength (Sheet vs. Sheet) | Standard test conditions ≥ | N/mm | 1.5 | |
| overwater retention rate (23 ℃ × 168h)≥ | % | 70 | |||
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