Phil L wrote:
wrote:
John wrote:
A friend has asked me to install a security post at the end of his
driveway, the sort that lay down flat and lock. The problem is his
drve is block paving right up to the tarmac footpath apart from a
drainage channel. I have explained to him that the pavers are only
a few inches thick and that the post will act as a very good lever
if somebody wanted to remove it (and the pavers it will be bolted
to)!! He says it is only really as a visual deterrent.
snip
Attaching a post to a block paviour is a waste of time, as has been
said. You can either lift some and get concrete down, or you can buy
posts specfically designed for paviours. These have a long metal
tongue that lies on the paving, thus they bolt to several blocks. I
doubt theyre at all secure though, could just be lifted off the ground
I expect.
You might be able to whack some steel bar into the ground instead of
digging, concreting and relaying the blocks, but I dunno how you'd
connect it to the post, nor how vandal proof it would be. I'd go with
a big heavy lump of concrete.
The other main drawback with this is plastic gas and water mains which are
easily punctured, not to mention electricity mains.
Bearing in mind Phil's warning, how about drilling through the paviors,
walloping in metre lengths of studding (aka threaded rod, allthread),
then dropping the post's base over them and putting nuts on? 10mm or
12mm would do, stainless if feeling particularly wealthy. The end of
the rods could be peened over if there's a risk of an intruder with a
spanner. I'd make up a flogging piece to protect the end of the thread
while hammering it in, and run three or four nuts on too, so the thread
is cleaned up as they are removed.
Less secure than a concrete pile, but much less work.
--
Kevin Poole
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