PRODUCT DETAILS

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
1	tensile strength /MPa	crystal growth (60℃)≥	Mpa	6
2	Tensile elongation /%	ordinary temperatures (23℃)≥	%	550
2	Tensile elongation /%	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
6	Heating Expansion	systolic ≤	mm	6.0
7	Hot air aging (80℃×168h)	Tensile strength retention ≥	%	80
7	Hot air aging (80℃×168h)	Tensile elongation retention ≥	%	70
8	Alkali-resistant [saturated Ca(OH)2 solution 23℃×168h]	Tensile strength retention≥	%	80
8	Alkali-resistant [saturated Ca(OH)2 solution 23℃×168h]	Tensile elongation retention ≥	%	90
9	artificial climate aging	Tensile strength retention ≥	%	80
9	artificial climate aging	Tensile elongation retention ≥	%	70
10	Bond peel strength (sheet to sheet)	Standard experimental conditions ≥	N/mm	1.5
10	Bond peel strength (sheet to sheet)	Immersion retention rate (23℃×168h)≥	%	70

PACKING AND DELIVERY

At present, our products are exported to Southeast Asia, Africa, the Middle East, South America and other 50 countries and regions, looking forward to cooperating with you!

CONSTRUCTION CASES

Construction Cases

FACTORY WORKSHOP

Geo-membrane blown film equipment

Geotextile Equipment

Quality Inspection

Geotextile Equipment

Workshop Equipment

Geo-membrane blown film equipment

FAQ

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.

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: 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: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: 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.

How can we guarantee quality?

Always a pre-production sample before mass production;</br>
Always final Inspection before shipment;</br>
Please feel free to leave us message if you have any question about us and our products.

Always a pre-production sample before mass production;
Always final Inspection before shipment;
Please feel free to leave us message if you have any question about us and our products.

EVA Geomembrane