The Brew Cabin

Posted: **Tue Nov 13, 2007 3:56 pm**

Hi All,

I have a company in at the moment doing me some patern printed concrete for a driveway.

They have dug up and taken away the old tarmac surface we used to have there that left what they said was a pretty good base so they wouldn't have to dig down the 8 inches they said they would. They have now laid the sub base over this which is 'old road' chippings. I have a bricklayer on site currently who tells me this stuff is as cheap as chips and has been known to react with concrete. Can someone put my mind at rest or should my contractor be laying proper sub base material.

Thanks for any help

Jason

Posted: **Tue Nov 13, 2007 4:24 pm**

http://www.pavingexpert.com/archv101.htm

If they have specified Type 1 they should install Type 1. Type 1 is not much more expensive than road planings.

Posted: **Wed Nov 14, 2007 11:35 am**

Ted is right.

Road planings are not suitable as a sub-base. I'd be reluctant to use them under gravel, let alone a rigid surface.

Posted: **Wed Nov 14, 2007 10:34 pm**

dont let them anywhere near with concrete
road planings are a big no no,and TBH if they considered using road planings i would be tempted to pay them for what they have down then bin that contractor
anyone worth their salt uses type 1 ,end of
LLL

The Brew Cabin

Question to teh experts - Subbase