9 November 2009
pavior saviour 2
With the excavation completed the retaining edges had to be constructed for the circles. We used broken paving slabs for these, cemented in place and laid on edge they'll be strong enough to hold it all together and will visually connect this to other areas in the garden where this material has been used extensively. I am an intuitive bricklayer so the levels developed rather organically but should be rather suitable in this informal space (and would be nothing that an angle grinder couldn't correct)
The materials were delivered staggered over a couple of days. I am a terrible quantity surveyor and have no formulae at hand. Instead I use a 'hands apart and visualise' technique to work out what's needed so when materials arrive I always find it rather shocking. Of course it all has to be moved by hand so shocking preceeds daunting.
I now know that 4,600 bricks take 3 people one day to carry in and stack (with teabreaks) and that the garden is now 20 tons heavier.
Into the retaining circles tons of hardcore and finely broken slabs (broken by hand - now that's a volunteering opportunity) were laid and compacted with a vibrating plate. This is a deafening process so many thanks to the Phoenix Theatre stage door staff for supplying earplugs.
Over the top of this we spread sharp sand. Tons of the stuff. Mounded up in the middle and whacked into place the bricks - reclaimed and London - could be simply laid in place.
The straight sections of path, connecting the circles and to the compost area, would be edged with ACO Borderguard. This is a recycled plastic edging strip that just requires a compacted bed of hardcore and sand before being nailed into the ground. It is very simple to use but hard to find a supplier (the manufacturers list of suppliers appears to be made up as no one contacted had heard of it) - Screwfix do.