DAS is a high performance tire self-adhesive waterproof membrane, cold applied. It is based on synthetic rubber, high-quality asphalt, tackifiers, anti-aging agent as the base material for the enhancement layer, polyester tire, release release paper / film as a spacer layer adhesive waterproof membrane. Double-sided design to meet the actual needs of different projects.
Size
Width: 1m thickness: 2.0mm, 3.0mm, 4.0mm
Nominal area:10－15m2 Other sizes are determined by mutual agreement
Product Category
Press Sheung surface of the materials is divided into the a polyethylene film (PE), fine sand (S).
Double-sided self-adhesive (D), the non-exposed waterproofing works (I).
Product performance as I type.
Physical Properties
| No. | Project | Implementation of criteria and indicators | ||||
|---|---|---|---|---|---|---|
| GB 23441-2009 | GB/T23457-2009 | |||||
| 1 | Tensile properties | Pull/(N/50mm) ≥ | 450 | 400 | ||
| Max tensile elongation at/% ≥ | 30 | 30 | ||||
| 2 | Tear strength/N≥ | — | 180 | |||
| 3 | Heat resistance | 70℃Slide does not exceed2mm | ||||
| 4 | Low temperature flexibility/℃ | -20 | -15 | |||
| No cracks | ||||||
| 5 | Impermeability | 0.3MPa | ||||
| 120minImpermeable | ||||||
| 6 | Peel strength/（N/mm）≥ | Membrane and membrane | 1.0 | 1.0 | ||
| Membrane and aluminum | 1.5 | — | ||||
| 8 | Permeability / number of≤ | 2 | ||||
| 9 | Support viscous/min ≥ | 15 | 15 | |||
Features
Double-sided self-adhesive, bonding is more reliable, no channeling water and resist pressure water and strong.
Filament polyester tire, fatigue resistance, puncture resistance and corrosion resistance are significantly enhanced.
Strong healing, construction accident puncture holes in the sand, nails and other hard objects can heal itself.
Pre-Shop anti-stick, stick as one of the concrete pouring and the follow-up, no channeling water but without the need of protection layers.
Scope
Suitable for roofing and pre-shop the site of anti-stick method of construction, tunnel, subway, drainage works, underground passages, air defense projects, viaducts, kitchen, waterproof, anti-corrosion, anti-seepage, moisture works.
Packaging & Storage
Storage and transport: different types and specifications of products should be stored separately and should not be mixed. Avoid sun and rain, attention to ventilation. The storage temperature should not be higher than 45 ° C, the membrane flat storage put-breaking height of not more than five single-layer stacked stand up storage. Transport to prevent tilt or horizontal pressure, if necessary, covered with tarpaulin.
Shelf life: in normal storage conditions of transport, storage period from the date of one year.
Construction Methods
Can be used in accordance with the actual requirements of the project, wet-laid, pre-shop anti-stick, empty shops, dry shop and other construction methods.
Construction Points
Basic requirements: water grass-roots must be smooth and firm, shall not have a prominent sharp corners, pits and surface sand from the phenomenon, the surface should be clean and dry, the corner should be asked to do a radius of 50mm arc angle. Waterproof layer must be on the grass-roots dust, sand, gravel, debris, oil and mortar protrusions cleaned.
Primer: primary clean-up clean acceptance, dedicated base oil evenly brushing the surface of the grass-roots, brushing in one direction, uniform thickness, missed the end, do not build up, and let sit to finger the non-stick. The construction method for wet Shop membrane directly after the primary treatment clean to wipe grout or cement mortar.
Node detail additional waterproof layer: detail the auxiliary add a layer of full self-adhesive membrane to do additional layer the complex detail should first do seal the deal with double-sided self-adhesive membrane, paint and other additional waterproof. Easy to paste the detail to use the gun auxiliary.
In the vertical plane, pavement DAS needs to be suspended, should be set lath fixed waterproof membrane to prevent slipping. Continue with the work, you should remove the lath and re comprehensive laying a layer DAS.
When laying the DAS, the film peeled off to isolate the sticky side of the paving to the primer surface after paving roller rolling surface to ensure good initial adhesion, can be squeezed to remove the air bubbles. Adjacent coils should be aligned, alignment, side seams and at least 50 mm overlap area used to be full of sticky roller compaction force overlap to ensure complete bonding between the membrane and continuous.
The laying of 300 mm in the horizontal and vertical facade around the corner DAS reinforcing strip, waterproof paint or other suitable method to make a chamfer adjacent coils aligned straightening side overlap of at least 60 mm, the short side lapat least 150 mm, roller compaction.
The backfill material should be compacted layer by layer, to prevent subsidence and drag passed to the waterproofing system.
Note: When the temperature is low or the detailed structure is appropriate hot-air auxiliary coil is not easy to paste paste.
