Concrete is strong in compression, but comparatively weak in tension. The inclusion of steel reinforcement improves the tensile strength of the element and, consequently, its resistance to stress. Unfortunately, in the presence of water and oxygen, steel corrodes. Therefore, in almost all likely exposure conditions for reinforced concrete, corrosion of the steel is a potential hazard.

CRACK REPAIR METHODS USING MECHANICAL PACKER

• Injection procedure for filling cracks and cavities under pressure with pressure with drill-hole(mechanical) or surface packers using the appropriate injection method:
  • When drilling is possible
  • For low- and high-pressure injection
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• Injection with surface packers is used:
  • When NO drilling is possible
  • When there is no water (Structural crack repair)
  • For low pressure injection(<20bar)
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