Geobear was recently awarded the contract to treat voided soils on behalf of Highways England.
The work formed part of the on-going maintenance works following completion of the M3 smart motorway between junctions 2 and 4a.
Specifically, we treated voided soils around and above laid pipes from the ground level downwards, with two rows of injections; one from either side of the installed pipe to ensure full coverage. Treatment depth varies across the area from 1.35m to 2.6m below ground level depending on the depth of the pipe.
The contract, on behalf of Balfour Beatty Infrastructure Services, is being undertaken over night to minimise disruption, and will see some 102 linear metres of soil treated over a period of 4 weeks.
Speaking about the project Richard Holmes, Managing Director, said: “This project is an excellent showcase for the versatility of Geobear’s geopolymer materials. Not only do we stabilise the soils, but we fill the expansive voiding surrounding sub-surface service lines, meaning future surface maintenance won’t be compromised. The recyclable nature of the geopolymer being used is not only safe for the environment, but is safe for removal, should access to the void be required in the future.”
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