Culvert Infills

Once a culvert/sewer becomes redundant the sewer has to be abandoned and infilled to stop the sewer collapsing. Foam concrete has been used for a number of years to infill these types of voids.

There are many methods to use but all are successful if the culvert/sewer is prepared properly. GS Foam concrete has a proven method for infilling culvert and sewers.

Sewer and Culvert Infills

The most common method for sewer and culvert infills is to concrete in a pipe supplied by GS Foam concrete, this pipe is required for us to clamp onto our special adapted pump and pump the foam concrete through until we reach the opposite side, this method has been used for many years and has a very high success rate. Some culvert/sewers can be gravity fed, the issue with this method is foam concrete has a natural flow of around 20 metres in length and if the culvert/sewer is longer than this more pressure is required hence the need for the pump.

Some culvert/sewers have intermediate manholes along the length, the advantage of these is we can pump until we reach each manhole and move our operation along without causing too much disruption, the manholes also act as a breather so no additional breather pipes are required to be built into the stank walls which would be the case if we did not have any intermediate manholes.