Reliable and cost-effective solutions for joint waterproofing.
WaterBar Rigid KJ
For the concrete intersection at walls and slabs
The WaterBar Rigid KJ is an evolution of the traditional physical barrier system at the slab / wall intersection. In addition to the physical barrier the WaterBar Rigid KJ comes with a bituminous layer.
Tied to the rebar and cast into the slab, the WaterBar Rigid KJ can be left exposed as long as needed (provided the protective tape remains in place) before casting the wall on top.
The WaterBar Rigid KJ integrates mechanically and seamlessly with the WaterBar Rigid CJ to ensure a complete waterproofing solution that is robust and permanent.
Description
Unlike the HydroBar Active waterbars, where you have a choice of Evo or Original, the Static Waterbar product range is a system. As such, most projects will commonly use at least 2 of the products in the Static waterbar range.
Concrete can be waterproofed on mass using highly effective additives such as Xypex Admix. However, at the static joint where concrete shrinkage may take place, a static waterbar is a simple solution to seal the gap. It works in synergy with the structure and becomes an integral element of the waterproofing solution.
The combination of a physical barrier with secondary protection is a proven option in Central Europe. This technology is now spreading further afield.
The elements become a permanent part of the structure, creating a physical barrier to water. They are not impacted by wet / dry cycles, providing a permanent, static protection.
The cost of Static waterbars is often more expensive than Active waterbars when compared metre for metre. However, consideration needs to be given to the time saved on site, especially when considering the WaterBar Rigid CJ and WaterBar Rigid CI products detailed below. These products allow the exclusion of formwork, as well as greater lengths of concrete poured in one go. This saves time and process in the construction program.
Benefits of WaterBar Rigid System
| WaterBar Rigid KJ | WaterBar Rigid CJ | WaterBar Rigid CI |
Protection against rain and ground water | Yes | Yes | Yes |
Protection against salt water | Yes | Yes | Yes |
Secondary protection | Bitumen | Bitumen or Bentonite | Bitumen or Bentonite |
Exposure to wet / dry* cycles | Infinite | Infinite | Infinite |
Can the waterbar be left for extended periods? | Yes | Yes | Yes |
Is it simple to install? | Yes, but training on site is recommended | Yes, but training on site is recommended | Yes, but training on site is recommended |
Will this delay the fixing of steel? | No | No | No |
Can this be used on kicker and non-kicker joints? | Yes
| No, see WaterBar Rigid KJ | No, see WaterBar Rigid KJ |
Can this be used on slabs? | Only where connecting to walls | Yes | Yes |
Can this be used on walls? | Only where connecting to slabs | Yes | Yes |
Does this remove the need for formwork? | No | Yes | No, but it allows longer runs to be poured. |
Installation of WaterBar Rigid KJ
Remove the ‘lower’ protection foil from the WaterBar Rigid KJ (the ‘lower’ part is the edge to be fastened to the reinforcement).
Place the WaterBar Rigid KJ on the reinforcement where the element is proposed to be installed.
Fasten the element onto the reinforcement using tie / binding wire. The best place to start with the installation is typically at a corner – the first element should be bent in half in such cases.
At the end of the WaterBar Rigid KJ, 100 mm of the ‘upper’ protection foil should be peeled off to allow the next length of WaterBar Rigid KJ to be joined to it.
The minimum overlap of each element is 50 mm. Join the elements by firmly pressing them to each other.
IMPORTANT: Ensure that both surfaces in the overlap have fully adhered to each other across the entire width of the elements.
Use a clamp to secure the joint of the elements.
The lower part of the metal sheet must be placed so that it will be submerged in concrete a minimum of 30 mm and a maximum of 80 mm after the first concrete pour.
The ‘upper’ protection foil should then be stuck back over the joints.
Subsequent lengths should be installed using the same method.
When the wall pour is being prepared, the ‘upper’ protection foil should be removed just prior to concreting. Removing it too early may result in having a reduction in the effectiveness of the adhesive layer.
T-shapes and other connections between the elements must be secured with a clamp.
Note:
- The WaterBar Rigid KJ must connect to the WaterBar Rigid CJ. (please see above)
- All waterproofing jointing elements (regardless of whether they are active, static or a combination) must connect to create a complete sealed system.
Please refer to your Manorteq representative for more information.
FAQ’s
Waterproof concrete creates a waterproof barrier within the mass of the concrete; however, this is not likely to seal the day / construction joints, therefore, something needs to be done at this intersection.
No. All waterbar products need to be fixed securely to stop them moving or becoming dislodged when concrete is placed.
Yes, but you must use the correct element in the correct place. Please refer to product pages.