Repairing Honeycombs in Concrete structures

Repairing of small & moderate honeycombs using Grout:

Image result for repairing of large honeycombs in concrete

In order to remove small & moderate size honeycombs we have to follow the following simple steps:

  1.  Initially the concrete particles and loosened aggregates should be removed by using a chipping hammer and a wire brush.
  2. the area should be cleaned thoroughly with a wire brush to remove finer particles and Surface is cleaned by water jet to obtain dust free surface.
  3. Let the surface dry well, Construction grout is applied.
  4. Texture and color should then be matched for aesthetic finish.
  5. Cure the repaired area.

Repairing of Larger honeycombs:

In order to remove larger size honeycombs we have to follow the following simple steps:

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Repairing Honeycombs in Concrete slab
  1. Initially the concrete particles and loosened aggregates should be removed by using a chipping hammer and a wire brush.
  2. To keep clearance around reinforcement 12mm thick concrete layer is removed.
  3. Clean the surface using water.
  4. Barra emulsion is used as a bonding agent.
  5. Over the wet surface barra emulsion is applied and before drying, 1:2 cement mortar is applied
  6. After mortar has set sufficiently, final surface is prepared by trowel.
  7. Texture and colour is matched for aesthetic finish.
  8. Cure the repaired area.

What is construction grout ?

Grout is generally a mixture of water, cement, and sand and is employed in pressure grouting, embedding rebar in masonry walls, connecting sections of pre-cast concrete, filling voids, and sealing joints such as those between tiles.

Grout varieties include tiling grout, flooring grout, resin grout, non-shrink grout, structural grout and thixotropic grout.

In this case we have to use structural grout.

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