Case 2 – old

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Remedial

Crack repair method

Repair using Poly Urethane (PU) grouting

The major cracks or localized porous concrete can be repaired by PU grouting. The injection could be carried out at the passive side or active side of the slab as illustrated in the picture.

Repair using Polymer Injection

Quality checking

The following guidelines can be used to check the efficacy of the completed injection process.