Mapei: Injection Solutions for Underground Construction - NBM Media

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Injection can be defined as the introduction of a material with pressure into the ground or a structure for waterproofing and for consolidating voids, cracks and porosity. Generally, the injection can be categorised as Pre Injection and Post Injection.

Pre Injection is cost effective in the following:

Water Ingress reduction
Ground zones with fractured rocks or weathered rocks
Unstable ground

Post Injection is carried out in the following situations:

Rehabilitations
Structural cracks in concrete
Unexpected water ingress
Rehabilitation in concrete structures

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NBM&CW May 2019

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