On our property there is a fairly old garage that hasn't been tended to in some time. The floor is cracked and buckling. What are possible fixes for this?
a) Grind concrete until it is flat, then grout the remaining cracks. You'll have an even thinner but flat floor, problem will likely re-occur.
b) Pour thicker new concrete over the top, with steel mesh, to make a more resilient replacement floor. Might still crack, as base is suspect.
c) Cut out & remove the failed floor, inspect the base to determine true cause, remove failed layers, install proper bedding, insulation layer & damp proof membrane, re-pour concrete.