Crack injection

INJECTION WITH REACTION RESINS

Reactive resins may consist of one or two components, which react chemically with one another. Initiators and accelerators are added as additional components.

Application of injection packers – Range of application

  • Dry and humid structural elements
  • Water bearing and pressurised water bearing cracks
  • Filling of hollows and voids
  • High-pressure injection into concrete structures
  • Maximum injection pressure: ⅓ of the nominal compressive strength of concrete to avoid damage to the structure of concrete

Demands on the injection packers

  • The material of the packers must be appropriate for the injection material
  • Safe fixation in the structural element
  • No cross-section reduction in the connection and packer system on injecting mineral materials
  • Corrosion resistance of the parts remaining in the structure
  • Possibility of shutting off
  • High pressure stability
Crack injection DESOI
DESOI Crack injection

Sealing of the crack surface

  • Sealing the crack surface prevents the filling material from escaping during the injection
  • Fix leakages with quick curing material
  • Provide deaeration - if vertical, at the highest point of crack
DESOI Injection packer steel
Crack injection with reaction resin

Crack injection with reaction resin
Injection with EP-I and PUR-I

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