Problem:

• Structural elements on top floor showed signs of corrosion. NDT results were doubtful.
• Corrosion cracks and carbonation of concrete were visible at site.
• The work must be done without disturbing the customer movement in the garment outlet

Solution:

• The work was done in phases. Area under repair was covered to protect all the fixtures within.
• Due attention was given to ventilation of the area so that the dust generated moves out quickly and does not spread in the shop.
• Temporary false floor was prepared for working; the loose concrete was removed and steel treated for corrosion.
• Issue of honeycombing was addressed using epoxy grouting under pressure
• Sections were rebuilt using micro-concrete for columns and thixotropic repair mortar for slabs.
• All areas were given a treatment of glass fiber wraps from durability point of view.