Crack and void repair

industrial brick building complex with white clouds in the background

Water pressure tight haze injection and crack injection

Injection techniques are used to solve a variety of problems in structural refurbishment. They are often employed to restore the basic condition of a structure by filling cracks, joints or voids, sealing them up so that they are also – or exclusively – protected against moisture penetration. In this context, injections into building structures constitute an important group of procedures – especially when it comes to measures for protecting and repairing reinforced concrete.
Moreover, injection can be used to create a flat waterproofing seal on the outer face – this is known as curtain injection. It is used when exposing or excavating the exterior wall structure would be too costly or is not possible at all.

Remmers injection technology

System solutions without extensive earthworks

Curtain injection

Curtain injections are used whenever it is not possible to excavate the basement because of other structures in the way, or other obstacles (e.g. pipelines). As a rule, waterproofing injections into the foundation soil can be used as independent waterproofing for all levels of water load. See also WTA Leaflet 5-20-2009.
The injection material is injected from the inside into the surrounding subsoil. Here, IG Acryl 3K from Remmers – a water-swellable injection gel on an acrylate/methacrylate base – acts as a long-term waterproofing agent, strengthener and stabiliser.
Supporting measures such as controlled ventilation, drying measures, or injections to protect against rising damp, can also be used depending on the circumstances. Various WTA leaflets containing detailed information on these measures are available (see p. 4, WTA Leaflet 5-20-2009).
Crack injection
A large number of water leaks – and the associated ingress of harmful substances into the building material – occur as a result of cracks, voids or defective joints. Not only does this impede the use of the adjoining rooms, it also causes major damage to the building substance. The most common causes of cracks include:

Shrinkage due to inadequate after-treatment
Inherent stress of the building element

In order to successfully and permanently seal defective areas of this type, it is crucial not only to possess detailed knowledge of the cause, type and characteristics of the crack, but also to select a suitable injection material. Remmers offers a range of polyurethane-based injection resins for damp or water-bearing cracks. Our resins can be used to create expandable connections in masonry and concrete structures.

Brochure – Waterproofing of old buildings

Our comprehensive brochure on the refurbishment of old buildings contains all the facts to help you find durable, individual solutions for your project.

More info

Suitable products

IG Acryl 3K

Article No. 6873

Acrylate gel

IR PUR 2K 150

Article No. 6871

Highly flexible 2K PU injection resin, D-I (P)

IR PUR 250

Article No. 6870

Flexible, moisture-reactive 1K PU injection resin, D-I (P)

IR PUR 2K rapid

Article No. 6876

Rapid expanding 2K PU injection foam resin, SPUR, D-I (P)

WP DS Levell

Article No. 0426

Waterproofing filler with high sulphate resistance

Article No. 4515

Lamellenschlagpacker

Article No. 4520

Verlängerungsrohr

Article No. 4521

Collomix Rührer DLX 152 HF

Article No. 4286

Endstück

Article No. 4519

Spezialschneider

Article No. 4518

References

Notre-Dame de Paris Cathedral (FR)

SuperHub, Groningen, the Netherlands

Spiral staircase, Rapunzel Naturkost, Legau, Germany

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