Reliable and cost-effective solutions for joint waterproofing.
WaterBar Rigid CJ
For day / construction joints in vertical and horizontal expanses of concrete
The WaterBar Rigid CJ is an evolution of the traditional physical barrier system, with an additional layer of either bitumen or bentonite.
Description
By installing the WaterBar Rigid CJ, with the solid element of the product installed parallel to the line of the face of the concrete, a barrier is created on the joint creating a complex, tortuous path for the water to navigate past.
However, if the concrete shrinks (depending on the version of WaterBar Rigid CJ chosen), the water will still be unable to track through because of the waterbar binding to the concrete with a bituminous layer (WaterBar Rigid CJ-B), or because of a swelling bentonite layer (WaterBar Rigid CJ-C) stopping the flow of the water.
The WaterBar Rigid CJ integrates mechanically and seamlessly with the WaterBar Rigid KJ to ensure a complete waterproofing solution that is robust and permanent.
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 CJ-B or C
Slabs
Ensure the continuous spacers (ideally made of concrete) are placed below the lower reinforced steel mat to stop concrete migrating beyond the joint line. If these are not available, please use block spacers (again ideally concrete) and a wooden batten between to stop the concrete migrating beyond the joint line.
Place the WaterBar Rigid CJ on the lower reinforced steel mat, with the bitumen or bentonite on the bottom side of the horizontal plane.
Securely fix the wire vertical element to the upper and lower reinforced steel mats using tie / binding wire or other appropriate methods.
Slide the next WaterBar Rigid CJ to interlock with the first and press the bitumen or bentonite on to the upper horizontal steel face to create a bond.
Continue until the edge of the pre-determined pour.
If the vertical wire element is greater than 300 mm then mechanical fixing (or possibly mechanical support) maybe required to withhold the weight of the fresh concrete.
Place a wooden batten directly on top of the upper layer of steel reinforcement mat in line with WaterBar Rigid CJ vertical wire, to withhold the concrete above the steel to again stop the concrete migrating beyond the joint line.
Pour concrete.
Walls
Note:
Place the WaterBar Rigid CJ between the 2 mats of reinforcement with the bitumen or bentonite facing the positive side of the water pressure.
Place wooden battens either side of the WaterBar Rigid CJ and in line the vertical wire, directly on the steel reinforcement mat.
Securely fix the wire vertical element to the rebar using tie / binding wire or other appropriate method.
Slide the next WaterBar Rigid CJ to interlock with the first and press the bitumen or bentonite on to the vertical steel face to create a bond.
Continue until the end of the pre-determined pour.
If the vertical wire element is greater than 300 mm then mechanical fixing (or possibly mechanical support) maybe required to withhold the weight of the fresh concrete.
Pour concrete.
- The WaterBar Rigid CJ must connect to any WaterBar Rigid KJ.
- 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.
Please note: This information is for general guidance only. It does not constitute as a detailed guide for a specific application. Due to the unique circumstances of every site, each installation must be assessed on a project-by-project basis as there may be many variables to consider. Independent professional advice should be sought on each installation. The information is to the best of Manorteq Ltd.’s knowledge and belief, accurate and reliable of the date indicated. However, no representation, warranty or guarantee is made to its accuracy, reliability, or completeness.
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.