When your underlying surface isn’t smooth to begin with however, variable depth paving – or uncompacted design using 3D elements, may be beneficial. “When you pave on top of an already ...

When uncompacted or poorly compacted soil sinks under a slab, you end up with a hollow spot. When you drive on it, the concrete is likely to crack as it tries to bend.

In either case, the joint will not perform properly. Ideally 1 to 1-1/2 inches of mix overlap is all you want. That’s enough mix to allow blending of uncompacted new mix into the compacted old mix.

Moves are afoot to force Wingecarribee Shire councillor John Uliana to remove an enormous uncompacted stockpile of dirt illegally put on his Mittagong property. Adjacent land owner Paul O'Shanassy ...