GEOCEN
HIGH IMPACT ASPHALT MEMBRANE WITH GEO-TEXTILE CENTRAL ASSEMBLY
Characteristics
Plastic Asphalt Membrane Megaflex with Geo-textile central assembly (polyester) that improves the mechanic properties achieving higher resistance to the puncturing and possible tears which can be produced on the membrane. With superficial coating of high density (synthetic polymer) in both sides which will have the function of an anti-adherent film. Because of its characteristic it gives better security facing possible tears or perforations obtained by something in relation to the work or not.
Recommended Uses
Suitable for the waterproofing of surfaces where the membrane is not exposed to the surface and needs a high strength to the puncturing or tear. It is applied under another element of the system. The manufacturing of these kind of systems gives better security and endurance and longer useful life of the product. Some examples of this product are:
In tile floors and terraces where the waterproofing is solved with an under coating membrane. Systems under tiles or other coverage. In double membrane waterproofing. Also it is advisable for waterproofing in foundations, cellars and retaining walls.
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Uses Asphalt Membranes Unexposed Geocen |
Advantages:
- Specified to under waterproofing system.
- Better security facing possible bad handling during the work.
- Higher strength to puncturing.
- Excellent crub with concrete mortars (before applying a concrete mortar, the anti-adherent film must be melt using a membrane torch.)
Warnings and Precautions
Rolls should be stored in interior places where they are not exposed to sun rays, rain or temperatures of less than 5ºC or above 35ºC. They should be taken only in the moment of using them.
The rolls will be stocked horizontally (in a pyramid way) up to a height of 5 rolls.
Ideally these products should be located on site at least two hours before their application, so as to ensure a balance with the ambient temperature and humidity. At room temperature about 5ºC special care will be taken when laying the roll, unrolled it slowly to avoid cracks, tears or other damages.
It is not advisable the applying of the membranes when the ambient temperature is less than 5ºC (41ºF).
The work must not be made with rainy weather and it will not be renewed until the surface is completely dry.
It is advisable to have carbon gas or chemical dust fire extinguishers to countateract possible fire focus which could be produced during the application step.
Packing
In rolls of 10 m2 (1m width per 10m length).
The GEOCEN membranes are introduced in the following range:
- GEOCEN 4mm – Normal membrane High Impact of 43 Kg.
- GEOCEN 3mm – Normal membrane High Impact of 33 Kg.
Application Method-(Standard IRAM 12627):
To ensure a correct waterproofing it is essential to follow the steps of application which are detailed below:
- SURFACE PREPARATION: The surface where the membrane will be applied must be dry, clean, flat, stable, even, smooth and must have the necessary ways to drain the water it will receive.
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PRIMING: Before applying the membrane the surface will be primed so as to improve the crub with the substrate. Megaflex Asphalt Primer (solvent base), Megaflex Asphalt Emulsion (watery base) or Oxidised Asphalt in cakes of application in heat, according to the characteristic of the work could be used.
The priming product is to be applied in an uniform way over the entire surface, including all extensions such as chimneys, airing elements, drainages and flashings. Allow to dry and check also for the cleanliness before applying the membrane
- APPLICATION: The rolls will be applied continuously from the lowest side (drainage) to the highest side of the surface, applying the rolls in perpendicular direction to the slope of the surface. Start by applying the first roll in perpendicular direction, ‘the roll display’ will be made, checking its position on the area to be waterproofed, then it will be rolled again to start the bond.
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BONDING: Heat the surface of the membrane to be welded (anti-adherent) with welding torch, melting completely the anti-adherent and superficially the asphalt. Bond to the substrate by pushing softly.
- OVERLAPS: The following membranes’ layers will be applied superimposed up the direction of the overlapped slope, with an overlap no less than 8cm (3,2’’) in longitudinal sense. Roll endings must be overlapped 15cm (6’’).
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MAKING FLASHINGS: At last the making of flashings on the perimeters walls will be finished with double membrane around the wall and floor joints.
- ENDING: Remember this is not an exposed membrane so it will be given a superficial ending. The membrane is under another component of the system. Once the product has been applied, it is necessary to melt the anti-adherent polyethylene using a membrane’s torch , aiming to improve the crub with the mortar to be received.
Technical data
| PROPERTIES |
GEOCEN |
| Roll length |
10 m. |
| Roll width |
1 m. |
| Nominal Thickness |
3mm/4mm |
| Nominal Weight(kg)* |
33/43 |
| Coating |
High density Polyethylene |
| Central Assembly |
Geo-textile |
| Anti-adherent Film |
High Density |
| Heat Strength (2hs. 70ºC) IRAM 6693 Standard) |
Maximum Sliding 5% |
Folding (R=12.5mm 2hs. =ºC en 3 sec)
IRAM 6693 Standard) |
Test passed |
* Depending on the product presentation.
Components |
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Anti-adherent Film
Asphalt Layer
Geo-textile Assembly
Asphalt Layer
Anti-Adherent Film
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