The corrosion caused cracking and spalling of the concrete cover, eventually exposing the rebar to the elements, further accelerating the corrosion process.

While working at a height of 75 m across the face of the dam, the application team removed all deteriorated concrete from the areas around the corroded steel. The deterioration required removal beyond the depth of the reinforcing steel. The steel was cleaned well after which the area was filled with Krystaline BLOCK F in one or two layers subject to depth. The team then applied Krystaline 1 slurry over the application area.