Pre applied HDPE fully bonded waterproof membrane(sand finish)

Description

Membrane consists of multi-layer composite waterproofing material for superior waterproofing performance, including a layer of thick HDPE film, self-adhesive polymer layer and a unique particulate layer.

It can be installed on uniform and regular concrete blinding, compacted sand-stone cushion for waterproofing of below ground surfaces and is also used for waterproofing of confined surfaces or blind side waterproofing. Product is designed to bond fully and permanently with poured concrete against it after placing and lying reinforcement.

Features

1. Forms permanent bond to concrete poured against it, preventing water from seeping into the gap between waterproofing membrane and the structure
2. Not affected by the displacement of the basal layer/ ground settlement beneath slabs
3. Membrane is self-protecting. It can be trafficked immediately after application and does not require the use of protective layer
4. Simple and quick to install, requiring no priming or fillets
5. Unaffected by wet conditions
6. Fully-adhered watertight laps and detailing
7. Excellent bonding even under long-term water immersion
8.Membrane can be applied at -4oC and above

Sand layer makes it possible to construct and work on membrane after applied without protective layer

Application 
1. Waterproofing below ground concrete structures
2. Protection of concrete foundations against aggressive ground contaminants
3.Prevents methane leakage in underground layers
4. Post-applied(without sand) waterproofing system for walls and tunnels projects.

Technical Data

No.

Test Item

Test Method

Result

Conclusion

1

Peel Strength

ASTM D903-98(2017)

0.201kgf/mm

Pass


2

Puncture Resistance

ASTM E154/E154M-08a(2013)
Section 10


995N


Pass


3


Tear Strength


ASTM D624-00(2012)

Transverse

77.1kN/m


Pass

Lengthways

77.6kN/m



4

Tensile Strength



ASTM D882-12

Transverse

24.5Mpa

Pass

Lengthways

24.7Mpa

Elongation at break

Transverse

940%

Pass

Lengthways

930%

 

5

Tensile Strength


ASTM D412-16
Method A

Transverse

25.6Mpa


Pass

Lengthways

26.2Mpa

Elongation at break

Transverse

860%

Lengthways

800%

 

6


T-Peel Strength

With reference to ASTM D1876-08(2015) and client's requirement


0.541 N/mm


Pass

7

Water Absorption

ASTM D570-98(2010)

0.29%

Pass


8


Low Temperature Flexibility


ASTM D1790/D1790M-15 Section 7.6


No affection


Pass



Specification

Product name

Width

Length

Membrane thickness

HDPE sheet thickness

Post applied HDPE waterproof membrane

1m/2m

20m

1.2mm

0.8mm

1.5mm

1.0mm

Application Instruction
The membrane should be overlapped using steel roller to ensure complete bonding and to achieve continuity. It can be installed at temperatures of -5oC and above. When installing it in cold weather, care should be taken to preheat the bonding edge with appropriate means such as hot air gun or other similar means.
Precaution
After the complement of the waterproof course, pay attention to protect the course and avoid the damage. During the construction and before the acceptance of the project, all the personnel are prohibited to walk above the waterproof course wearing spike.





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