Fast, low cost floor joint repair
September 1st 2006

Uneven joints between the three sections of the floor slab in a warehouse at Milton Keynes run by furniture fittings distributor Blum UK, were causing wire-guided man-up trucks to frequently malfunction.

The specialist joint repair division of Concrete Grinding CG (UK) confirmed that localised sub-base compression relating to the failure of the load transfer system between the slabs was the fundamental cause.

To solve this, Blum UK considered carrying out disruptive and expensive structural repairs which would have taken at least six-week ends. Instead, CG suggested, stabilising the joint edges by pumping a high-strength resin foam into the void beneath them, cutting back the joint arises to a depth of 50mm and then re-building the joints with a high-performance epoxy mortar. The joints were then re-cut in the same position as before, filled with a semi-rigid compound, ground to ensure a completely even surface and sealed.

The whole project was completed in one week-end and at a much lower cost.

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