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Water-Tanks & Water bodies - New

Water-Tanks & Water bodies  - New - After Minimum 28 days of curing of the Slab


1. Surface Preparation - Concrete
    • Clear and thoroughly clean the surface with wire brush, electromechanical grinders and jute brush. 
    • Ensure surface is totally dust-free by using a high speed air blower
    • Wash the surface with water to identify cracks
    • Mark the cracks with chalk to identify them properly

    2. Cold Joint Treatment - Concrete Structure
    • Grind the cold joints to clear out the profile and remove any loose surface
    • Make a groove using grinder to make space for repair mortar and make it dust free
    • Apply bond coat of BS smartbond 100, diluted 1:2 in water and apply by brush
    • Make repair mortar with sand cement ratio of 1:4 admixed with BS Smartbond 100 at 5% by weight of cement

    3. Grouting of Concrete Structure
      • Drill grouting hole in the structure after hammer testing and marking the areas to identify honey combed areas
      • Install the packers using polymer mortar and let them set for a day.
      • After 24 hours , use Grouting pump to grout the concrete with cement slurry admixed with expansive flow agent like MC-Einpresshilfe or similar
      • Saturate all the points and remove the packers after work is done and repair with polymer mortar prepared with cement, sand , water and BSsmartbond 100.

      4.  Application of Cove or Gola along the vertical wall and terrace floor.
        • On the concrete surface or the plastered surface  make a horizontal and vertical cove or gola of 50mm.
        • Apply a bond coat of BS Smartbond 100 diluted with water 1:2 by brush just before making gola or cove  of 50mm 
        • Make a mix of cement : sand  in ratio of 1: 4, add 5% BS Smartbond 100 by weight of cement in the mix and make a cove or gola along the wall on a still wet bond coat of BS Smartbond 100 applied before 
        • Cure it for 3 days, by using jute cloth or water spray curing 3 times a day.


        5.  Application of Waterproofing Coating 

        a) Always Ensure before starting, the surface is dust free, use a high speed blower if possible or jute brush to remove any dust.
        b) Type Cementitious 1 Part or 2 Parts
              1. Priming: Apply a coat of 2k waterborne epoxy primer  BS SmartPrime WB EP, Resin 1 Part, Hardener 2 Parts and Water 3 Parts, and apply by brush on the entire repaired and prepared surface.
              2. After a gap of 7 to 8 hours, 
          • Applying the first coat of  Acrylic Cementitious System like MoistureZero Liquid chemical mixed with cement in 1:1.5 ratio
          • After 4 hours, apply the second layer of MoistureZero mixed with cement in a ratio of 1:1.5 to finish the layer. 
          3. Cure for 3 days by jute sacks after 6 hours of final coat. After curing test waterproofing for 4 day by water ponding.