The existing plaster (and render where it was unsound) was hacked off before grit blasting the substrates where necessary and jetwashing to remove laitence etc. Two coats of TT55 tanking slurry were then applied, lapped on to the floor by 200mm as per a typical specification for this application.
A wall/floor detail of Triton Fillet Seal was then applied to achieve continuity of waterproofing and to reinforce this critical juncture against water ingress. Fillet Seal is a pre-packed, cement based and polymer modified product that adds both strength and a smooth transition between horizontal and vertical substrates.
The joints around the pavement lights were sealed from above at street level and all internal angles at the joints and cracking was repaired and reprofiled using Triton Fillet Seal, overcoated with Triton’s TTME incorporating fibre strips as reinforcement where necessary. TTME is ideal for areas prone to movement or vibration, and therefore cracking, which is to be expected on a busy highway like Cheapside.
The concrete floor was in a poor condition prior to the refurbishment.The MGA team made necessary repairs prior to applying two coats of Triton’s TT Vapour Membrane, overlapping the wall floor junction. TT Vapour Membrane is a ready blended coating that once cured, provides a waterproof Methane and Carbon Dioxide barrier. The basement is now a fully waterproofed utility area. The final finish to walls and floor will depend upon the eventual use of the basement, which is still undecided.
