Hello Everyone, I'm new here.
During the last couple of years, a 'dip' has been gradually developing on my garage floor, at the front, on one side only, just under the door. As I drive in-and-out, the car wheels - front, then rear (only one side) - roll over it and this makes it worse, little-by-little. In the last couple of months, it has got worse now. The floor has a coloured, plastic-type coating, with - I'm sure - concrete underneath. The area from crack-to-crack, or dip-to-dip, is about 3ftx3ft (1m X 1m).
I am thinking of hiring a breaker (electric) and dig a square hole, then refill with hard core
and finally concrete. I would like to know
1. Is this the way or the best way to tackle the problem?
2. If so, how far should I dig down?
3. Do I just put hard core, or also some sand in between?. and finally
4. What kind of ready-mix should I select and how do I calculate the amount needed?
As the result of a repair, I am not worried about the aesthetic difference between a concrete repair patch and the cooloured plastic cover ofb the rest, as long as the floor is level and strong.
I thank anyone for the answers and if there is anything necessary that I have not mentioned, please tell me.
:)