Posted: Tue Mar 29, 2005 5:39 pm
Hi,
Great site, been ploughing through the archives and it's all been very enlightening, much better than work!
I'm about to start work on extending an area of existing patio to replace an area of lawn and to provide an extra row of flags down the side of the house. I've calculated it's approx a 36 flag job, at 600mmx600m, so about 13 meter square.
My question is with soil as the sub-grade and dug out to a suitable depth, should I use ballast as a regulating layer (no cement added) over the soil to provide a suitable base and then bed the flags with 10:1 mix? Or, would a ballast & cement mix as the bedding layer straight on to the soil be a worthwhile option?
Would a rubble/DTp1 base topped with a 10:1 bedding mix be better than using ballast.
The soil from what I've experienced gives moderate drainage but I imagine has quite a high clay content.
Many thanks, for any pointers.
Andy
Great site, been ploughing through the archives and it's all been very enlightening, much better than work!
I'm about to start work on extending an area of existing patio to replace an area of lawn and to provide an extra row of flags down the side of the house. I've calculated it's approx a 36 flag job, at 600mmx600m, so about 13 meter square.
My question is with soil as the sub-grade and dug out to a suitable depth, should I use ballast as a regulating layer (no cement added) over the soil to provide a suitable base and then bed the flags with 10:1 mix? Or, would a ballast & cement mix as the bedding layer straight on to the soil be a worthwhile option?
Would a rubble/DTp1 base topped with a 10:1 bedding mix be better than using ballast.
The soil from what I've experienced gives moderate drainage but I imagine has quite a high clay content.
Many thanks, for any pointers.
Andy