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Non Harmful Substances Tunnel Waterproofing Membrane Damp Substrate Installation

QINHUANGDAO DIWEI CONSTRUCTION MATERIALS CO., LTD

Non Harmful Substances Tunnel Waterproofing Membrane Damp Substrate Installation

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Brand Name : DWD WATERPROOFING

Model Number : DWD 120

Certification : ISO

Place of Origin : China

MOQ : Negotiable

Price : Negotiable

Payment Terms : L/C, T/T

Supply Ability : 10000 square meter per day

Delivery Time : 15-20 days generally, or depending on your order.

Packaging Details : Woven bag packaging for every roller

Material : Polyethylene , PE

Thickness : 0.6 - 1.2mm

Density : 360 - 600g/m2

Width : 1150mm to 5800mm Or Customized

Thermally Weldable : Yes

Free Sample : Yes

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Damp Substrate Installation Waterproofing Membrane For Tunnel Application


DWD waterproofing membranes provide a premium water-resistant barrier for tunnels waterproof system.

When installation, the waterproofing membranes are stuck onto a layer of cement adhesives which mixed with cement mortar in a suitable ratio. It is an easy and quick installation method to shorten construction time.


DWD 120 Waterproofing Membrane Brochure.pdf


The feature of DWD waterproofing membranes:

High-density.High polyethylene as raw material to provide Excellent water resistance, anti-seepage, chemical corrosion resistance, aging resistance, and root resistance.
Easy-to-installed.Bonded with cement adhesive and suited to full-surface laying. Can be applied on damp substrates.
Thermal weldabilityThermally weldable for membrane-to-membrane joints by hot air gun and auto-moving welding machine.
Excellent tensile strength.Adaptability to deformation and flexibility at low temperature to meet wide temperature range application.
Long service life.Guarantees are more than 30 years under correctly applied.
Eco-friendlyFormulation without dangerous or harmful substances.

Our Service

OEM service for your bulk orders. Available for trademark, package, color, etc.

Customized service. Multiple thicknesses and dimensions for your different application.

On-site installation guidance.

Free sample.

Other requirements.


Specification

Specification of DWD PE waterproofing membranes please see the table as below.

Thickness (mm)Length (m)Width (mm)Area (m2/roll)
0.660.9

1150

70
0.760.970
0.856.565
0.950.057.5
1.243.550
Note: Width can be customized such as 1500mm, 2000mm, 3000mm and 6000mm, etc.

The performance of DWD 120 waterproofing membranes meets the standard of GB 18173.1-2006 High Polymer Waterproofing Materials as shown below.

ItemParameter/Result
Breaking tensile strength (N/cm)Normal temperature≥60
60℃≥30
Elongation at break rate (%)Normal temperature≥400
-20℃≥10
Tear strength (N)≥20
No leakage performance (0.3Mpa, 30min)No leakage
Bending temperature under low temperature (℃)≤-20
Heating expansion amount (mm)Extension≤2
Contraction≤4
Hot air aging (80 C x 168h)Retention rate of tensile strength (%)≥80
Breaking tensile strength retention rate (%)≥70
Alkali resistance (mass fraction of 10% Ca (OH) 2 solution at normal temperature x 168h)Retention rate of tensile strength (%)≥80
Breaking tensile strength retention rate (%)≥80

Artificial climate aging

Retention rate of tensile strength (%)≥80
Breaking tensile strength retention rate (%)≥70
Bond peel strengthStandard test condition (N/mm)≥1.5
Soaking retention rate (%)Normal temperature x 168h70
composite strength (surface and core layer) (N/mm)≥1.2

Note:

Normal temperature is defined +25℃.

The performances of artificial climate aging, heating expansion amount, breaking tensile strength at 60℃should not consider if waterproofing membranes are non-exposed.

For the total thickness is less than 1.0mm of the resin composite waterproofing membranes, its elongation at break rate should not be less than 50%, and other performances can reach more than 80% of the prescribed value.


Installation

Mechanically installation.

Fasteners can be set in the overlapped membrane edge, and weld the overlapped edge with a hot-air gun.

Adhered installation.

DWD waterproofing membranes can be fully bonded with DWD cement adhesive.

Welded installation.

Can be welded with the auto-moving welding machine to for the smoothest appearance and excellent seams strength.


Seams of waterproofing membranes are a key point in roof waterproofing works. Make sure all the seams are well welded. If necessary, every overlap of two waterproofing membranes should be more than 50mm for welding.

Roof waterproofing membranes

DWD waterproofing membrane is manufactured from the polymeric flexible material can be applied on damp substrates.


More information or FREE SAMPLE service please email us: info@dwdwaterproofing.com


DWD WATERPROOFING is a professional waterproofing membranes manufacturer. During almost 20 years of development, our waterproofing membranes are applied in various fields including roofing, pools, tunnels, and basements, etc. Our service range including waterproofing membrane selling, waterproofing membranes OEM manufacturing, as well as on-site technical guidance.


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