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EVA Geomembranes

Tunnel waterproof board production process using the domestic advanced two co-extrusion single screw extrusion method, from raw material resin by adding reinforcing agents, antioxidants, by heating and melting, plasticizing, extrusion molding, hauling the formation of the sheet

Classification :

PRODUCT DETAILS

Product introduction

Tunnel waterproof board production process using the domestic advanced two co-extrusion single screw extrusion method, from raw material resin by adding reinforcing agents, antioxidants, by heating and melting, plasticizing, extrusion molding, hauling the formation of the sheet, but also with a good sling geotextile heat synthesis of a composite waterproofing board, but also can be used in the extrusion and calendering method, that is, the resin extruder Banyan melting and plasticizing, extruded from the head of the slit die extrusion of the molten sheet of billet It can also use extrusion calendering method, i.e. the resin extruder will melt and plasticize, extruding the molten sheet from the slit die mouth of the machine head, fusing it with the sling, and then calendering and cooling it into a glossy film through the roller, or fusing it with the geotextile with the sling, and then calendering and cooling it into a composite waterproof sheet through the roller.

 

Performance characteristics

Resistant to chemical corrosion, ultraviolet radiation; aging resistance, good abrasion resistance; strong puncture resistance; easy construction, no pollution.

 

Purpose of action

New railroads, highways, municipal roads, light rail transit construction (including bridge decks, tunnels), roofing, waterproofing of underground works, water conservancy construction, sewage treatment works, chemical acid and alkali treatment pools and other projects seepage corrosion-resistant, liner use.

 

Product specifications

Width: 2-6 meters, thickness: 1.0m-1.5mm.
 

Technical indicators

EVA waterproof board for tunnel GB18173.1-2012

No.  item unit Technical indicators
1 tensile strength /MPa ordinary temperatures (23℃)≥ Mpa 16
crystal growth (60℃)≥ Mpa 6
2 Tensile elongation /% ordinary temperatures (23℃)≥ % 550
low temperatures (-20℃)≥ % 350
3 tear strength ≥ kN/m 60
4 impermeability 30min 0.3MPa no leakage
5 Low temperature bending   -35℃ uncracked
6 Heating Expansion reach ≤ mm 2.0
systolic ≤ mm 6.0
7 Hot air aging (80℃×168h) Tensile strength retention ≥ % 80
Tensile elongation retention ≥ % 70
8 Alkali-resistant [saturated Ca(OH)2 solution
23℃×168h]
Tensile strength retention≥ % 80
Tensile elongation retention ≥ % 90
9 artificial climate aging Tensile strength retention ≥ % 80
Tensile elongation retention ≥ % 70
10 Bond peel strength (sheet to sheet) Standard experimental conditions ≥ N/mm 1.5
Immersion retention rate (23℃×168h)≥ % 70

FACTORY APPEARANCE

The company now has an independent R&D center and has established technical cooperation relationships with many well-known domestic universities and scientific research institutions. The company has nine modern production workshops, nearly 20 production lines, and an annual production capacity of more than 30,000 tons.

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HONOR

The company now has an independent R&D center and has established technical cooperation relationships with many well-known domestic universities and scientific research institutions.

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CONSTRUCTION CASES

Since its establishment, the company has provided services for China's South-to-North Water Diversion Project, Sanjiang Management Project, Shanxi Railway Channel Project, Ningxi Railway Project, Gansu Expressway Project, Shijiazhuang Subway Project, Shenyang Landfill Seepage Prevention Project, and Binzhou Landfill Prevention Project.

South-to-North Water Diversion Project Middle Line Project

South-to-North Water Diversion Project Middle Line Project

Sanjiang Management Project

Sanjiang Management Project

Inner Mongolia Yellow River Diversion Project

Inner Mongolia Yellow River Diversion Project

Qingge River Flood Diversion Project of China Water Resources No. 13 Bureau

Qingge River Flood Diversion Project of China Water Resources No. 13 Bureau

Gansu Province Jishishan Water Diversion Project

Gansu Province Jishishan Water Diversion Project

Ningxia Hui Autonomous Region Jingyuan Reservoir Project

Ningxia Hui Autonomous Region Jingyuan Reservoir Project

Rizhao Lanqiao Railway Dam Project

Rizhao Lanqiao Railway Dam Project

Xinjiang Aksu Engineering Composite Membrane Procurement Project of China Water Resources No.4 Bureau

Xinjiang Aksu Engineering Composite Membrane Procurement Project of China Water Resources No.4 Bureau

FAQ

Q: Can we take some samples? Any fees?

A: Yes, we can provide samples free of charge, but we don't pay for shipping. If you place an order after confirming the sample, we will refund your delivery fee or deduct it from the order amount.

Q:Can you deliver the goods on time?

A: Yes, we guarantee the best quality products and punctual delivery. Integrity is the tenet of our company.

Q: What are the loading ports?

A: In general, we ship the goods from Shanghai, Tianjin, Qingdao and Ningbo ports. You can designate other ports according to your needs.

Q: Is there quality inspection before loading?

A: Of course, all our products go through strict quality inspection before packing. Those that fail will be destroyed. Customers can also entrust a third party to inspect the products before loading.

Q: How is the product packaged?

A: Standard export seaworthy packing with waterproof paper inside and iron outside, secured by fumigated wooden pallets. It can effectively protect products from corrosion and various climate changes during Marine transportation.

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