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The new 6" slab has no hardcore / compaction and is sitting on clay. It has moved relative to the original slab which is in good condition with no cracks. The shed extension was built across the two slabs. As Deluks says, I guess without proper foundations the new slab will move as the clay...

I could hear my Son playing his keyboard in his bedroom even though he was using headphones. The solution I came up with was to get the instrument isolated from the wall / floor / anything that would carry the vibrations. Anything soft and spongy with lots of air cells should help reduce this...

I have made the mistake of casting a new slab next to an existing one without joining them together with rebar. It's taken 12 months plus but the new slab has moved causing a crack in the floor (and new wall) of my shed / workshop. What can I do to join the slabs together and prevent further...

Hi, As a newbie, I am looking for advice on screeding my kitchen floor. Have searched the archive but still have a few questions. The property is a 1930's semi with kitchen extension added on to the rear. The extension floor is a concrete slab with DPC and is dry. There is an archway...