New driveway - Rutting

[cactus]

Hello,

I am new to this, so excuse me if this has been asked a hundred times already.

Two months ago I had a block paving drive done at the front of my house. In the last week or so I have noticed that the drive is starting to sink slightly in tracks where i park my van.

My van is only a citreon berlingo and is not very heavily laden and is probably not much bigger than a family car. Is this normal, or should i get the bloke back to have a look?

[Mark B]

this definatly shouldnt be happening after a few months, i would get him back to see and get him to sort it out. if a proper sub base was compacted the way it should then this shouldnt have happened.

[cactus]

i have had a thought, i am not sure about this as a have never laid a drive but if you have one side of the subbase sitting against concrete and the other against soil, does the side with the soil have to re-inforced or is it ok to leave it sitting against the clay soil?

[bobhughes]

If you look here you will see tha answers to all your questions.

The sub base normally extends a little outside the edge of the surface layer and the edge would be haunched on top of it to prevent movement.

The chances are that your problem is the result of an inadequate base.

And yes it happens a depressing number of times.

[lutonlagerlout]

probably too much sand and an inadequate sub base
cheers LLL