Correct sub base.. blocks vs bitmac - Correct sub base

[Daftdaf]

Dear All..

Wholly new to this game. Bit of a DIY idiot but happy to have a go.

My issue. I have a red bitmac drive that accomodates one car. It would appear to have been laid on a bed of concrete that seems relatively thin (the concrete). I want to extend the drive so that it can accomodate two cars. There is not enough money to get someone in to do the job...so I am attempting the very basics myself to make the new section driveable on...and when money allows to either complete the job myself of get someone in.

I have a mini digger coming in a week or two to dig out the soil (driveway slopes down away from house...into street so drainage not an issue).

My question is...

I don't know whether I want to have a new bitmac drive or to have block paving, when the money allows.

I was planning to dig out 200mm or so and fill with type 1 and just simply drive on that until money allows to do more.

I expect a 2+ year delay until improvements can be made and in that time i expect the new section of driveway to be well compacted.

I have been advised that bitmac drives MUST be laid on concrete base to get the best results yet i see from the literature on the website that they are laid onto type 1 sub bases too!

I don't want to have to lift up what I am about to do in a few years. Am I better off laying down a type 1base for 100-150mm and using that...or putting down a concrete base of 100-150mm ...

Basically which sub base is best for later adding either block paving or bitmac.

I am so grateful to the website and any advice you can give

David

[Big Phil]

I have been advised that bitmac drives MUST be laid on concrete base to get the best results

blimey, by who? i thought charlie cairoli died years ago

bitmac/asphalt on drives are better laid on Type 1. you can lay asphalt on concrete under certain circumstances but this is generally if the concrete is already in place and you don't want to remove it. You will need to speak to your council planning dept, as there's more comedy literature with the guidelines for surface water drainage for new drives & extensions to existing drives.

http://www.communities.gov.uk/publica....gardens