Flood Grouting

Flood grouting

The sealing of drainage systems can be achieved by 'fill and drain' techniques, which treat the main sewer, branches and manholes in one operation. The section to be sealed is isolated and then filled from a manhole with a solution which permeates through leaking joints and cracks. The solution is pumped out quickly and the section is then filled with a second solution which reacts with the residue of the first solution to turn the material surrounding manholes and pipes into an impermeable mass. The second chemical is then pumped out and the pipe is cleaned to remove any residues.

 

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Test results

The following flood grouting products have passed the hydrostatic test:

Fulline (short term hydrostatic test) [2002]

Sanipor (short and long term hydrostatic test) [2002 and 2005]