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Case study

Mid City Bandra Kurla Complex

Polyurethane resin injection to seal high pressure water leaks through basement cracks

Project type
Commercial & Retail
Location
Mumbai, India
Year
2012
Products
Quickmast 120, Quickmast 110, DCP Packers
Polyurethane injection at a basement crack (open the photo larger)
Polyurethane injection at a basement crack

The challenge

A commercial project at Bandra Kurla Complex in Mumbai had serious water leaks through structural cracks in the basement. The water was under high pressure, and conventional waterproofing and other options had not worked. The work had to be done in wet conditions and at controlled cost.

The DCP solution

DCP proposed two component polyurethane (PUR) resin injection through DCP Packers. Most leaks were first controlled with cement grouting. Where water pressure was very high, Quickmast 110, a PUR water stopping foam, was injected first. Quickmast 120, a low viscosity two component PUR resin, was then injected to form a flexible film that seals active leaks permanently.

DCP products used

Concrete repair Quickmast 120 Elastic polyurethane resin based injection system Product page: Quickmast 120
Concrete repair Quickmast 110 Polyurethane resin based injection system Product page: Quickmast 110Specifications: Quickmast 110
Named in the project DCP Packers Not in the SpecHub product library. Ask DCP for the current product.

How it was applied

  1. Control most leaks with cement grouting.
  2. Drill DCP Packers at 45 degrees in a zigzag pattern along the crack.
  3. Where water pressure is very high, inject Quickmast 110 foam to hold the water back.
  4. Inject Quickmast 120 with a high pressure foot pump, starting at the areas of highest resistance in the crack.

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