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Home » Services » Other Services » Basement Raft Waterproofing

Basement Raft Waterproofing

Basement Raft Waterproofing
Basement Raft Waterproofing
Service Code : 02

In this service, we clean the PCC surface and remove loosely adhering particles (if any) after then, we followed the following sequence of operations:


  • Applying of compatible primer coat for bonding with substrates.
  • Sealing of all joints, Corners, Junctions of pipes and masonry with PMM/ EM.
  • Application of waterproofing system. The selection of WP system is depending on various aspects such as location, category of WC, layers etc.
  • Protection of treatment with CMP enriched with IWC 2% to 4% by weight of cement.
  • Providing and fixing required dia MS/PVC/GI nozzles embedded about the half of the depth of the member to be grouted in grid pattern at spacing approx. 1.0Mtr C/c while casting the raft slab.(The caps shall be fixed in the mouth of the nozzles to avoid chocking while concreting or nozzle can also be fixed after concreting).
  • Injection of cementitious slurry admixed with grouting compound into the nozzles with grouting pumps.
  • Grouting operation will be done after the raft/slab concrete reached the full strength i.e. 28 days after casting of concrete.
  • Sealing off the nozzles with quick setting sealing compound or PMM after cutting of the projected nozzles over the concrete surface.


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