The main characteristic of any city, great or small,
is that there is always building work going on somewhere. Cities are after all
forever changing and always developing. This is most evident in the buildings
that are built and demolished. Less visible but equally important is the
infrastructure that keeps the city running. Only think of the ubiquitous roads
and pavements and of course sewers. Only when this infrastructure becomes
blocked do we notice it's vital importance!
On stable ground it is advisable to lay the stones in
sand instead of concrete, this reduces cracking, allows water to drain away
much better and can be easily repaired in case of sinkage or damage.
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