Reliable and cost-effective solutions for joint waterproofing.

HydroBar Evo

The evolution of swellable waterbars

HydroBar Evo waterbars are a new, revolutionary alternative to the original bentonite solution giving increased expansion capacity, over the traditional systems.

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 hydrophilic expandable 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.

Description

The evolution of the waterbar into the HydroBar Evo means increased performance. The synthetic make-up of the product means that when in contact with water, it swells up to 1000 % of its original size, depending on the impurities in the water. Moreover, the pressure this expansion can place on the concrete, even at a quarter of the size of the bentonite, is more than double, ensuring even greater protection from ingress.

Although new, its provenance is proved in laboratory testing. HydroBar Evo remains completely durable even when continuously cycling through wet / dry cycles. As a non-fibrous material, it cannot washout. After more than 35 wet / dry cycles the waterbar has proven to still have the same expansion qualities.

The last consideration is the weight and flexibility of the synthetic material. HydroBar Evo is significantly lighter than HydroBar Original when compared like for like. This benefit is significant when applying overhead. The flexibility of HydroBar Evo comes in to its own when trying to thread between rebar.

Size: 5 mm × 20 mm × 10.000 mm (H, W & L)

Benefits of HydroBar Original and HydroBar Evo

	HydroBar Original	HydroBar Evo
Protection against rain and ground water	Yes	Yes
Protection against salt water	No	Yes
Sealing force	1.25 tonnes per m	2.6 tonnes per m
Complete wet / dry* cycles	> 3	> 35
Does it return to its original shape?	No, it will reduce in size if the water is removed but never return to its original shape.	Yes, within reason it will always return almost to its original shape.
Fixing with Fixing Glue?	Yes	Yes
Fixing with Fixing Wire, nails and washers?	Yes	Yes, if gluing is not appropriate.
Fixing with nails and washers only?	Yes	No. It will tear and most likely become dislodged when concrete is poured on it.
Fixing with SynMastic?	Yes, but it will not be as secure as the above methods. However, any voids between are and substrate MUST be filled with SynMastic.	Yes, but it will not be as secure as the above methods. However, any voids between are and substrate MUST be filled with SynMastic.
Fixing horizontally?	Yes	Yes
Fixing vertically?	Yes	Yes
Fixing overhead?	Yes	Yes

Often, when wet / dry cycles are referenced, it refers to laboratory condition tests where material is thoroughly wetted and then completely dried. In the ‘real world’ this is highly unlikely to occur unless very long periods of hot, dry weather are experienced between rain.

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.

Installation of HydroBar Evo

Place HydroBar Evo on a smooth, dust and Latent free surface – concrete or metal. In most instances Manorteq Fixing Glue will be required.

Do not install HydroBar Evo during heavy rainfall, as it may result in swelling before the concrete has been poured.

Avoid all contact with water before concrete casting.

HydroBar Evo should be positioned so that it is a minimum of 80 mm from any exposed surface of the concrete.

Fixing is recommended with Manorteq Fixing Glue.

Alternatively, the HydroBar Evo can be secured with Manorteq Fixing Wire using nails and washers – Fixings at 250 mm centres maximum.

At joins of the HydroBar Evo, ends must overlap by a minimum if 100 mm, laid side by side, ensuring there is continuous connection between them. They should not be placed one on top of the other.

HydroBar Evo can be adhered to PVC pipe penetrations using Manorteq Fixing Glue.

HydroBar Evo can be used in salt / saline conditions of up to a 3 % concentration. For higher salt environments, polluted areas and situations in contact with manure and slurry, please contact your Manorteq representative.

Watch our HydroBar Evo installation video

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Download

HydroBar Evo

Technical Data Sheet

1.5 MB

FAQ’s

1Why use a waterbar?

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.

2Why use a Static waterbar?

A Static waterbar's primary role is to place a tortuous path in the line of the water ingress. However, Manorteq Static Waterbars are more technical than just placing an obstacle in the way. Depending on the specification of the Manorteq Static Waterbar, it will either adhere to the concrete, swell against the concrete, or create permanent formwork for the concrete, saving time and cost of other trades.

3Why use a hydrophilic (Active) waterbar rather than a Static one?

A hydrophilic waterbar, either bentonite or synthetic rubber, does more than just place an obstacle in the way. When water touches it, it expands and creates an internal pressure against the concrete. This stops the water migrating through the void that has been created by concrete shrinkage at the construction/day joint.

4Why use HydroBar Original rather than HydroBar Evo?

Bentonite is a tried and tested method that has been used with the Xypex waterproofing system.
Bentonite becomes fibrous as it swells, it can "reach out" and fill fissures and bleed tracks in the concrete aiding the waterproofing
It is physically bigger and therefore it provides a natural physical barrier prior to the swelling being activated.
More options in the way it is installed.

5Why use HydroBar Evo rather than HydroBar Original?

It is significantly lighter making it easier to:
- install overhead
- hold its form - it will not sag under its own weight in heat.
- ship - it's 83% lighter
It is more malleable, making it easier to thread between rebar etc.
The pressure it places on the concrete internally is more.

6Can I just place a HydroBar on the concrete or loosely tack it in place?

No. All HydroBar needs to be fixed securely to stop it moving or becoming dislodged when concrete is placed on it.

7Can I place a HydroBar anywhere?

Almost. However there needs to be enough concrete cover to retain the HydroBar at pressure. Please refer to the Technical Data Sheet for more information.

8Will the products interfere with the Xypex waterproofing system?

No. All Manorteq ancillary products are developed and selected to integrate seamlessly with the Xypex waterproofing system, as well as others.

9What is the preferred way to fit HydroBar Original?

Fixing Wire and nails - Please refer to the Technical Data Sheet.

10What is the prefered way to fit HydroBar Evo?

Fixing Glue - Please refer to the Technical Data Sheet.

11What is the preferred way to fit HydroBar Evo?

Fixing Glue - Please refer to the Technical Data Sheet.

12If the concrete surface is uneven, can I use HydroBar Evo?

Yes. The concrete should be clean and as flat as possible. However, if the surface is undulating, Manorteq Fixing Glue can be applied to the surface providing it is clean and free of loose material. It is imperative that the glue is in full contact with the concrete surface and the HydroBar Evo to ensure a successful application. NO gaps are acceptable. If Fixing Wire is used, SynMastic MUST be used to fill the voids under the HydroBar Evo for the full length of the application. Again, NO gaps are acceptable.

13If I use the Active waterbar system, do I have to only use this on the project?

No. It integrates seamlessly with the WaterBar Rigid System.