Garage floor-expansion joint-Builders pls advise

ThisIsWeird

spurdog1 said:

My thoughts towards concrete, it is my favoured choice, but if i concrete the expansion joint, i put the whole floor in danger of cracking???
the floor is bare concrete, no paint.

It could be expansion, or could equally be that these were levelling timbers, set at the correct depth and level to allow a thingy tamping stick to be run back and forth over it to obtain a level floor.
I found a few of them in my garage floor, so removed them and filled with concrete, but mine were around the floor perimeter and it was obvious what they were for - not expansion.
Spurdawg, where are yours located?

Section62

ThisIsWeird said:

spurdog1 said:

My thoughts towards concrete, it is my favoured choice, but if i concrete the expansion joint, i put the whole floor in danger of cracking???
the floor is bare concrete, no paint.

It could be expansion, or could equally be that these were levelling timbers, set at the correct depth and level to allow a thingy tamping stick to be run back and forth over it to obtain a level floor.
I found a few of them in my garage floor, so removed them and filled with concrete, but mine were around the floor perimeter and it was obvious what they were for - not expansion.
Spurdawg, where are yours located?

If you use timber shuttering to help level the floor slab then you are supposed to remove it once the concrete has hardened sufficiently.  Leaving them in, especially around the perimeter of the slab, is unusual (aka a sign of bodging).

ThisIsWeird

Section62 said:

If you use timber shuttering to help level the floor slab then you are supposed to remove it once the concrete has hardened sufficiently.  Leaving them in, especially around the perimeter of the slab, is unusual (aka a sign of bodging).

Oh yes

Apart from that, they did a good job.