crack injection and filling of voids

Aims of crack injection / crack repair are


Preventing the penetration of aggressive substances and prevents corrosion


Elimination of leaking cracks or voids in the structural element

Elastic connection

Restore a limited. elastic and sealed connection of the crack sides

Rigid bonding

Restore of a tensile strength and pressure resistant connection

Polymeric filling material (injection resin)

Injection resins can consist of one or two components that react chemically with each other. Initiators and accelerators are mixed in as additional components as required. By injecting polymeric filling materials, various injection targets are pursued, such as sealing of components or the non-positive connection of components. For this purpose, different packer types from the DESOI quality range can be used to successfully carry out an injection task.

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In case of crack repair with cement suspension and cement paste, cracked structural elements are repaired by means of non-positive injection. The cracks are injected so that no more water can penetrate after the injection process is completed. The injection material forms a protection against the penetration of aggressive substances and prevents corrosion of the reinforcement. The load-bearing capacity of the structural elements is restored by the frictional connection of the crack flanks.


Since the early 70s injection hose systems have been used alternatively or in addition to joint profiles and metal water stops. It is an injectable joint filler in tube or channel form. Subsequent leaks can be sealed by injecting polyurethane resin, acrylate resin, cement suspension or cement paste.

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