Crack in Garage Floor

[Meblin]

We have a detached garage (concrete walls and tiled pitched roof about 5m x 3m) at the bottom of our garden and the concrete slab that it sits on has a large crack running from front to back ending in a smaller T crack towards the back.


Crack at front (click image to enlarge)


Crack towards the back (click image to enlarge)

It looks like it has been repaired (filled) in the past but this is starting to dislodge. The drainage is not very good and water often finds it way through the floor.

What is the best way to repair this crack and then raise the level of the floor?

Meblin

 

[noseall]

for a permanent solution you are best hammering up the old floor, re stoning and compacting, lay dpm and lay new 100-150mm trowel finish concrete.

if you are sensible with the dpm and are aware of external floor levels, then i guess raising the existing floor level shouldn't be a problem.
only a site visit could confirm this.

 

[Deluks]

"hey mate, you've dropped a pound"